CN113612300A - Integrated photovoltaic power generation and user-side micro-grid energy storage integrated power conversion station framework applied to double-energy double-battery-pack electric automobile - Google Patents
Integrated photovoltaic power generation and user-side micro-grid energy storage integrated power conversion station framework applied to double-energy double-battery-pack electric automobile Download PDFInfo
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- H—ELECTRICITY
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/50—Charging stations characterised by energy-storage or power-generation means
- B60L53/51—Photovoltaic means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/80—Exchanging energy storage elements, e.g. removable batteries
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
- H02J3/322—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means the battery being on-board an electric or hybrid vehicle, e.g. vehicle to grid arrangements [V2G], power aggregation, use of the battery for network load balancing, coordinated or cooperative battery charging
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- H—ELECTRICITY
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- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
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- H02J7/342—The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/22—The renewable source being solar energy
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- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
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Abstract
The invention relates to a comprehensive photovoltaic power generation and user-side micro-grid energy storage integrated power station switching architecture applied to a double-energy double-battery-pack electric automobile. The new energy electric vehicle core power supply system and the electric vehicle battery pack are convenient and quick to replace, and the new energy electric vehicle core power supply system and the electric vehicle battery pack quick replacement system specifically comprise a main battery and auxiliary battery double-battery power supply system, a photovoltaic power generation system and a user side micro-grid energy storage comprehensive power conversion station system. The invention introduces a double-battery power supply system into the electric automobile, and simultaneously combines the double-battery electric automobile with a battery replacement mode; according to the invention, photovoltaic power generation and user side energy storage are introduced into the power conversion station, and on the other hand, the user side energy storage is profitable by utilizing a peak clipping and valley filling income mode, and meanwhile, the pressure of a power grid system is reduced. According to the invention, the photovoltaic power generation, the user side energy storage and the battery replacement station share the battery system, so that the cost of the separate construction of the photovoltaic power generation, the user side energy storage and the battery replacement station is greatly reduced, the popularization mode of the electric automobile is optimized, and the development of the new energy environmental protection industry is facilitated.
Description
Technical Field
The invention relates to a new energy electric vehicle core power supply system and an electric vehicle battery pack rapid and convenient replacement, in particular to a main and auxiliary battery double-battery power supply system, a photovoltaic power generation system and a user side micro-grid energy storage comprehensive power conversion station system.
Background
Currently, with the increasingly worsening global environment, environmental protection and energy conservation policies are successively introduced in various countries, and from the appearance of pure electric vehicles to the present, electric vehicles have developed a mature industrial chain, but the sales volume of electric vehicles is tragic, and the reasons are mainly three points: firstly, the disadvantage of short endurance of the electric vehicle causes trouble to vehicle owners; secondly, the cost of the battery is higher than that of the fuel vehicle; thirdly, the capacity of the power battery is seriously attenuated, the later-period replacement and maintenance cost is high, and the purchase willingness of consumers is generally low in non-limited shopping cities;
the idea for solving the problems is as follows: the battery replacement mode and the battery replacement scheme of the electric automobile have the following problems that 1: the product that the quick-change battery pack scheme can serve is single, at present, only two or three kinds of electric automobiles can be served, an automobile manufacturer who releases the battery replacement service at the present stage can only meet a certain type of automobile model of the factory, and the whole automobile industry can not form a uniform standard due to different sizes, brands, internal structures of automobile bodies, electrification technical differences and the like of hundreds of types of automobile models in the whole industry, the standard established by a certain automobile manufacturer is difficult to be accepted by other competitive product manufacturers, so that the scheme is difficult to popularize in a large range, and therefore the battery replacement scheme needs to seek a new technical compatible scheme; the electric automobile battery replacement scheme has the problems of 2: the battery pack of the existing battery replacement scheme of a battery replacement scheme manufacturer is arranged on a chassis of an electric automobile, the bottom surface of the battery pack is exposed to the outside, the electric automobile is in different road conditions such as muddy sandy soil road sections, a large amount of sundries are attached to the outside of the battery pack, when the battery replacement of the battery replacement electric automobile is carried out, the sundries attached to the battery are scattered in a mechanical structure inside a battery replacement station along with a device of the battery replacement station, the electric automobile and the battery replacement station are integrated electrical mechanical structures, safety accidents in operation can be caused by the entry of a large amount of impurities, meanwhile, the dirt needs to be manually cleaned, and along with the increase of labor cost year by year, the popularization of the battery replacement scheme in the future is inevitably developed towards high automation, intellectualization and unmanned, so that a new technical scheme is needed to solve the problem that the sundries are attached to the battery pack; from the above analysis, although the electric vehicle battery replacement station can be regarded as a relatively perfect solution, the battery replacement station is a diversified integrated mechanical system integrating electrification, intelligent control and battery cells, and the investment construction and equipment cost in the early stage are high, so that a new construction technical idea is urgently needed to be searched for to reduce the cost; distributed photovoltaic power generation: the photovoltaic power generation problem is that besides the high cost of a photovoltaic solar panel, other components such as an energy storage battery pack are also necessary components, the service life of the energy storage battery pack is about 8 years by using lithium iron phosphate, and the total cost recovery period is about 10 years, so that the photovoltaic power generation needs to be combined with other schemes to reduce the cost and shorten the recovery period; through comprehensive analysis of various different industrial applications, comprehensive integrated construction of the power conversion station, the user side energy storage and the photovoltaic power generation can be comprehensively complemented.
Disclosure of Invention
The electric automobile power station comprises a power supply, a grid storage type electric automobile power station, a power supply system and a power supply system, wherein the power supply system comprises a main battery and an auxiliary battery of the electric automobile (2020100782907), the main battery and the auxiliary battery of the electric automobile (2020100782894), the power supply system is a patent of the same family applied by patentees in China, and the patent cites two groups of patents (2020100782907 and 2020100782894) in the patent, so that the problems in the electric automobile industry are solved by the following technical methods;
1. the existing electric automobile battery replacement method comprises two technologies, one is to replace the whole battery pack of the electric automobile, if the method needs to be popularized and applied, the structure and the electrification technology of all automobile models in the automobile industry need to be unified, the second is to divide the battery pack of the electric automobile into a plurality of single bodies, each single body can be replaced, and meanwhile, the number of the single bodies can be increased or reduced under different electric quantity requirements, the method divides the battery into a plurality of small single battery packs, increases the electrification connection structure, influences the electrification stable operation of the electric automobile, increases the potential safety hazard, cannot carry out unmanned rapid operation due to complex operation, and is difficult to popularize;
in order to overcome the defects of the two methods, the invention provides an electric vehicle energy supply structure comprising double energy (main and auxiliary) battery packs, wherein the battery energy supply of the electric vehicle is supplied by two battery energy supply units, and the whole battery pack of the electric vehicle consists of a group of main battery packs and a group of auxiliary battery packs;
the double-battery system architecture of the double-energy double-battery electric automobile further comprises a VCU/BMS master control unit of the electric automobile, a main battery pack energy unit, an auxiliary battery pack energy unit assembly, a power unit motor part of the electric automobile, a charging unit of the electric automobile, an electric signal interface of the main battery pack and an electric signal interface of the auxiliary battery pack;
a further dual battery system architecture includes: the system comprises an auxiliary battery pack, an independent liquid cooling device unit, an independent electric control BMS unit, a central control cooperative control unit, a battery replacement operation manual switch, a charging unit and the like, wherein the independent liquid cooling device unit, the independent electric control BMS unit, the central control cooperative control unit, the battery replacement operation manual switch and the charging unit are respectively arranged on the electric automobile and the auxiliary battery pack;
the energy unit assembly of the auxiliary battery pack further comprises a lower protection plate of the auxiliary battery pack/battery pack assembly, the auxiliary battery pack/battery pack, an auxiliary battery pack fixed on a chassis locking part of the electric vehicle (from bottom to top), the auxiliary battery pack fixed on the lower protection plate locking part (from top to bottom), a bidirectional guide positioning block for butting the auxiliary battery pack and the chassis of the electric vehicle/an electric-conversion auxiliary battery pack placed in a battery pack control box butt-joint guide positioning block (the two are the same part), an auxiliary battery pack strong current interface, an auxiliary battery pack weak current signal interface and an auxiliary battery pack liquid cooling pipe interface;
the preferable auxiliary battery pack (battery pack) is positioned in the center of the front wheel and the rear wheel of the electric automobile and is of a replaceable structure; the optimized main battery pack can be distributed at any fixed position of the electric automobile according to the design requirements of automobile manufacturers and cannot be replaced at a battery replacement station;
the preferable battery control system is composed of a master controller, a main battery pack controller and an auxiliary battery pack controller (1 + 2);
the preferred charging is performed by two charging methods: the charging method comprises the following steps of charging a main battery pack independently and simultaneously and respectively to a main battery pack and an auxiliary battery pack, wherein the main battery pack and the auxiliary battery pack are isolated from each other during charging, and the charging mode is controlled by an electric vehicle control system and a charging module (a better electric vehicle charging port is provided with a control button which is selectively operated by an electric vehicle user as required during charging);
the preferred user interaction unit of the electric vehicle central control display respectively prompts the electric quantity of the main battery pack and the electric quantity of the auxiliary battery pack to a user;
preferably, when the double-energy electric automobile with the main battery pack and the auxiliary battery pack is not provided with the auxiliary battery pack, the main battery pack in the electric automobile independently supplies electric energy to the electric automobile to drive the electric automobile to run;
the electric automobile manufacturing factory with the double energy main and auxiliary double battery packs preferably designs and sets the electric energy capacity of the main battery pack, the electric energy capacity of the main battery pack is between (1 kw.h and 100 kw.h), and the electric energy of the main battery pack can meet the requirement that the continuous driving endurance mileage of the electric automobile is between (1KM and 100 KM);
a non-contact Radio Frequency Identification (RFID) NFC chip is arranged in the preferable auxiliary battery pack and stores information such as battery pack codes and identification codes;
the preferred auxiliary battery pack is separately designed and provided with a heat dissipation system (comprising a liquid cooling mode, an air cooling heat dissipation mode, a refrigerant heat dissipation mode and the like);
the cooling liquid interface of the preferred auxiliary battery liquid-packed cooling heat dissipation device adopts a two-way interlocking structure, the auxiliary battery liquid-packed cooling liquid interface is communicated with the cooling liquid interface inside the electric automobile when being connected, and the interfaces are locked when being separated, so that the cooling liquid can not leak when the cooling liquid interfaces are separated;
the preferable auxiliary battery pack belt is provided with an automatic collision ejecting device, when the electric automobile collides, the auxiliary battery pack and the automobile body connecting structure are automatically disconnected, and secondary damage to the automobile body and personnel in the automobile caused by burning, explosion and the like of the battery pack after being impacted is prevented;
the optimized convenient battery replacement auxiliary battery pack is fixed on the electric automobile chassis by using split fastening expansion bolts, and is convenient to replace later according to the service life and times of the bolts;
an encryption communication protocol is arranged in the preferred communication interface of the auxiliary battery pack and the corresponding communication connection interface of the electric automobile, when the communication protocol is verified to be failed, the power-on interface of the auxiliary battery pack and the corresponding power-on interface of the electric automobile are automatically cut off, and the auxiliary battery pack cannot supply power to the vehicle;
the optimal auxiliary battery PACK PACK independent liquid cooling heat dissipation system assembly is set in a manner that the cooling liquid is automatically recovered by the cooling device in the electric automobile when the electric automobile is shut down, when the electric automobile enters the battery replacement station, the electric automobile is shut down and shut down first, and when the electric automobile is shut down, the cooling liquid is automatically recovered by the cooling device in the electric automobile; preferably, when the vehicle speed is lower than a certain speed, the cooling liquid can be automatically withdrawn; preferably, when the electric automobile is started and the speed of the automobile reaches a certain speed, the auxiliary battery pack starts to supply power with high power, and the liquid cooling system is started again;
a remote data monitoring platform is preferably built (MGCC monitoring and scheduling management unit comprises a central control system), battery pack real-time use information is uploaded to a data center through a network connection system of each secondary battery pack built-in communication chip (further comprising GPS, Beidou communication positioning, GPRS, 3rd-Generation, 3G, 4th Generation mobile communication technology, 5th Generation mobile networks, 5th Generation wireless systems, 5th-Generation and other cellular mobile communication technologies), and the data center monitors the safety of each battery pack;
furthermore, the data center can position the position of the auxiliary battery pack by the method, so that the safety of the battery pack is ensured;
a disassembly prevention alarm device is further arranged in the battery pack, the auxiliary battery pack needs to be reported by a data system of a maintenance center before being normally maintained and disassembled, and if maintenance information is not reported by the system for disassembly, the data center automatically triggers an alarm;
the preferred power supply mode is as follows: the main battery pack and the auxiliary battery pack are respectively provided with a set of battery management module at the same time, the battery management modules can detect the electric quantity of the corresponding battery packs, meanwhile, the two sets of battery packs are simultaneously connected to a vehicle main controller in a series-parallel connection mode, and the main controller controls the output sizes of the power, the current and the electric quantity of the main battery pack and the auxiliary battery pack according to the running condition of the vehicle and the system setting mode;
further, the dual-energy dual-battery electric automobile is provided with three different driving modes: i, a standard driving mode; II, a high-performance sports driving mode; III, an energy-saving driving mode (better adjustable through gears);
the main difference of the three better driving modes is that the auxiliary battery pack charges the main battery pack in a soc threshold value I, the auxiliary battery pack charges the main battery pack in a full period in a high-performance mode, the auxiliary battery pack charges the main battery pack according to the soc threshold value in a standard mode II, and the auxiliary battery pack does not charge the main battery pack in an energy-saving mode III;
further I, three different electric quantity control modes of the standard driving mode comprise: the intelligent control mode, the active output mode of the main battery pack and the active output mode of the auxiliary battery pack (better adjustable through a knob or a button);
further setting a threshold value by SOC (state of charge) to intelligently adjust the output power, current and electric quantity output size (measured by percentage% symbol and Arabic number indication) of each of the main battery pack and the auxiliary battery pack (the preferred SOC threshold value can be adjusted in a central control interactive system);
and further, in an intelligent control mode: (the preferred secondary battery pack charges the primary battery pack according to the soc threshold);
when the soc of the main battery pack is more than 80%, the output of the main battery pack is 70%, and the output of the auxiliary battery pack is 30%;
the preferred master battery pack soc is greater than 60%, less than 80%, the master battery pack output is 50%, and the slave battery pack output is 50%;
the preferred main battery pack soc is greater than 45%, less than 60%, the output of the main battery pack is 30%, and the output of the auxiliary battery pack is 70%;
the preferred master battery pack soc is lower than 40%, the output of the master battery pack is stopped, and the output of the auxiliary battery pack is 100%;
preferably, the soc of the main battery pack is less than 30%, and the auxiliary battery pack charges the main battery pack;
preferably, the master battery pack actively outputs the mode: the soc of the main battery pack is greater than 80%, the output of the main battery pack is 100%, and the output of the auxiliary battery pack is not output;
the preferred master battery pack soc is greater than 40%, less than 80%, the master battery pack output is 70%, and the slave battery pack output is 30%;
the preferred master battery pack soc is greater than 20%, less than 40%, the master battery pack output is 30%, and the slave battery pack output is 70%;
the preferred master battery pack soc is lower than 20%, the output of the master battery pack is stopped, and the output of the auxiliary battery pack is 100%;
preferably, the soc of the main battery pack is less than 10%, and the auxiliary battery pack charges the main battery pack;
preferably, the auxiliary battery pack actively outputs the mode: the soc of the main battery pack is more than 70%, the output of the main battery pack is 30%, and the output of the auxiliary battery pack is 70%;
the preferred main battery pack (soc is more than 50% and less than 70%, the main battery pack stops outputting, the auxiliary battery pack outputs 100%, and the auxiliary battery pack simultaneously charges the main battery pack;
preferred ii, high performance sport driving mode: the auxiliary battery pack is charged to the main battery pack in a priority mode in the whole period, the main battery pack automatically adjusts the output power to complement the requirements of the total power, the current and the electric quantity according to 100 percent of the output power, the current and the electric quantity, and the auxiliary battery pack automatically adjusts the output power to complement the requirements of the total power, the current and the electric quantity along with the output power, the current and the electric quantity of the main battery pack (the preferable main battery pack is the main output power, the current and the electric quantity, and when the output power, the current and the electric quantity of the main battery pack are insufficient, the auxiliary battery pack outputs the power, the current and the electric quantity);
preferred iii, energy saving driving mode: (the preferred secondary battery pack does not supply power to the primary battery pack);
the soc of the main battery pack is more than 70%, the output of the main battery pack is 30%, and the output of the auxiliary battery pack is 70%;
the optimal master battery pack soc is lower than 70%, the auxiliary battery pack outputs power, and the master battery pack is auxiliary output power (when the auxiliary battery pack is insufficient in power, the master battery pack outputs auxiliary power);
the excellent unified design is suitable for the volume of the auxiliary battery packs of all electric vehicles (the volume of the middle position of the front wheel and the rear wheel does not occupy the space of passengers in the vehicle), the use standards of the auxiliary battery packs of all electric vehicles are unified, and meanwhile, the auxiliary battery packs can be provided with the upgradable power management module, on the basis, each electric vehicle manufacturer can adjust the size, the volume, the shape, the installation position and the like of the main battery pack according to the sizes of different vehicle types, so that the electric vehicle manufacturer can be widely applied in large batch according to the unified standard and can enlarge the use scale, and the manufacturing cost of the electric vehicle manufacturer and the buying cost of buyers are reduced;
2. the invention aims at the problem that dirt attachments generated by a vehicle chassis in the scheme of quickly changing the battery pack are brought into a mechanical transmission part in a battery changing station when the battery is changed, and simultaneously discloses an auxiliary battery pack assembly structure which comprises a battery pack/battery pack + lower protection plate (1 + 1) double-layer structure;
a heat insulation layer (composed of heat insulation materials) is further arranged between the lower protective plate and the battery pack to insulate the battery pack from the outside temperature, so that the battery pack is prevented from influencing the use safety, the electric capacity, the service life and the like of the battery pack due to the cold and hot difference of the four-season temperature change in the external environment of the electric automobile;
the preferable battery pack is fixed above the lower guard plate in a locking way by a locking part from top to bottom; the preferable locking part can adopt an expansion bolt structure from inside to outside, and the outer ring of the bolt is of a stepped (double-layer or multi-layer) conical structure, so that the stability is better; the preferable lower guard plate is locked and fixed on the chassis of the electric automobile frame by a locking part from bottom to top from the lower part; waterproof rubber rings are arranged around the upper surface of the preferred lower guard plate, so that the damage of short circuit caused by water or other liquid entering the inside of the auxiliary battery pack assembly is prevented; furthermore, bidirectional guide positioning blocks are arranged on the periphery of the battery pack, and guide positioning grooves are arranged at the contact positions of the lower protective plate and the periphery of the battery pack; the bidirectional guide block is in the shape of a cylinder with an oval upper end and an oval lower end and a middle part; the battery pack is detachably fixed on the lower protection plate, and is guided by the lower end of the guide block when contacting with the lower protection plate, so that the battery pack and the lower protection plate are accurately positioned; the battery pack assembly is further locked on the electric automobile chassis, and when the battery pack assembly is contacted with the electric automobile chassis, the upper end of the bidirectional guide positioning block is guided into the guide positioning groove at the mounting position of the battery pack assembly on the electric automobile chassis, so that the mounting positions of the battery pack assembly and the electric automobile chassis battery pack assembly are accurately positioned; the method comprises the following steps that the electric vehicle is preferably replaced in a battery replacing station, a battery pack is completely disassembled by a battery replacing station battery pack disassembling and assembling device, the battery pack is placed into a battery bin frame control box subset for charging, and when the battery pack is in contact with a drawer in the battery bin frame control box, the lower end of a bidirectional guide positioning block is guided into guide grooves around the drawer in the battery bin frame control box; a battery charging and discharging strong current interface and an information transmission weak current interface are arranged on one side of the upper surface of a battery pack in the auxiliary battery pack assembly, and a cooling liquid connecting interface of a liquid cooling device is arranged on the other side of the upper surface of the battery pack; the excellent cooling liquid connection interface and the electric signal connection interface are distributed at different positions on two sides of the upper surface of the battery pack, so that cooling liquid is prevented from entering the electric signal connection interface;
3. the patent technology of (patent number: 2020100782894/grid storage type electric automobile battery replacement station) is introduced, the technical scheme is further optimized by combining the problems and all the contents of the invention, and the technical scheme for solving the problems of high initial input cost, long battery cost recovery time, overlong charging time, low battery pack utilization rate and the like of the battery replacement station is provided;
the technical scheme is an integrated photovoltaic power generation and user-side micro-grid energy storage power station replacing framework applied to a double-energy double-battery-pack electric automobile;
the integral type trades the power station and includes: the intelligent control System comprises an integrated micro-grid power changing station MGCC intelligent control center, a power station Energy storage charging and discharging EMS (Energy Management System) intelligent control subunit, a power changing station overall power changing mechanical transmission unit, a photovoltaic power generation unit, an external commercial power grid power supply unit and an alternating current double-circuit intelligent control distribution box EMS intelligent control subunit;
the integrated microgrid power conversion station MGCC intelligent control center further comprises an integrated total monitoring platform, a manual control platform, an external communication total interface, a photovoltaic power generation total control for the whole operation of the power conversion station, a charging and discharging total control for an energy storage unit, a power supply total control for an external commercial power grid, an alternating current double-circuit/multi-path intelligent control power distribution box total control and a power conversion operation total control for the power conversion station;
the photovoltaic Power generation unit comprises a photovoltaic Power generation board, a direct current combiner box, a DC-DC boosting module, a photovoltaic Power generation EMC intelligent control subunit, a DC-AC inverter module and a No. 2 PCS (energy storage converter, also called Power Conversion System) single-path rectifier box;
the power supply unit of the external commercial power grid comprises an EMS intelligent control subunit of a power distribution system, an AC-DC module and a No. 1 PCS single-path rectifying box;
the intelligent power station Energy storage charging and discharging EMS (Energy Management System) control sub-unit comprises a power station Energy storage battery bin (BMS battery Management control) unit, a BMS battery charging and discharging main controller, a PCS main circuit rectifying box, a CAN weak current signal transmission line and a high-voltage direct current transmission line;
further, the MGCC intelligent control center of the integrated micro-grid power conversion station is in connection communication with (an energy storage charging and discharging EMS intelligent control subunit of the power conversion station, an intelligent control subunit of a power conversion WCS/WMS control system (weak current signal CAN general set), an EMS intelligent control subunit of a power distribution system, an EMC intelligent control subunit of photovoltaic power generation and an EMS intelligent control subunit of an alternating current double-circuit power distribution box) through a CAN weak current signal transmission line;
4. the battery changing station energy storage battery bin (BMS battery management control) unit further comprises a basic bin frame structure, a battery bin frame single battery bin subset and a separated single modular battery pack/battery pack control box subset;
further, the single battery bin subsets of the battery bin rack are arranged and distributed on the basic bin rack structure in a mode of transversely arranging 1 row of 1X1-1Xn and 2 rows of 2X1-2Xn, wherein each row is formed by overlapping L1-L2-Ln in a multi-layer mode;
further the above described split monoblock modular battery pack/pack control box subset comprising: the battery pack control box comprises a battery pack control box outer frame (fixed on a battery compartment frame subset), a battery pack control box inner drawer, battery pack upper and lower guide grooves arranged on the periphery of the inner side of the battery pack control box inner drawer, a slide rail/slide rail device (comprising upper, lower, left, right and 2-4 groups of slide rails), a push-pull mechanism for controlling the connection of the box inner drawer and the outer frame, a cooling pipe/sheet arranged on the bottom surface of a contact surface of the battery pack control box (the inner drawer and the battery pack), a BMS electric control integrated board circuit module, a charge and discharge interface/data acquisition interface connected with the battery pack in the battery pack control box, a circuit interface integrated module, a charge and discharge strong electric interface and a CAN subset intelligent control weak electric signal interface;
the preferable slide rail/track device comprises 2-4 groups of slide rails, namely an upper group of slide rails, a lower group of slide rails, a left group of slide rails and a right group of slide rails, wherein the upper group of slide rails and the lower group of slide rails are installed with slide blocks in a staggered manner;
the BMS electric control integrated board circuit module is further connected with a cooling pipe/sheet arranged on the bottom surface of the contact surface of the battery pack control box (an inner drawer and a battery pack), a push-pull mechanism connected with the inner drawer and the outer frame of the control box, a charge-discharge interface/data acquisition interface connected with the battery pack inside the battery pack control box, and a circuit interface integrated module;
the BMS electric control integrated board circuit module feeds back information such as the collected battery pack interior (BMS battery management and battery heat management) and the like to the power conversion station energy storage charging and discharging EMS intelligent control subunit through the CAN subset intelligent control weak current signal interface, and the power conversion station energy storage charging and discharging EMS intelligent control subunit transmits the information to the integrated micro-grid power conversion station MGCC intelligent control center;
the optimized BMS electric control integrated board circuit module collects and recovers internal operation data of an old battery pack through a charging and discharging interface/data collecting interface (the internal part of a battery pack control box is connected with the battery pack) and sends the internal operation data of the old battery pack to an MGCC intelligent control center of the integrated micro-grid power conversion station;
further, a cooling pipe/sheet arranged on the bottom surface of a contact surface of a battery pack control box (an inner drawer and the battery pack) automatically and intelligently adjusts the start and stop of cooling operation according to the safety temperature value set by an Energy storage charging and discharging (EMS) intelligent control subunit of a power station according to the battery pack temperature data fed back by a charging and discharging interface/data acquisition interface (connected with the battery pack inside the battery pack control box), so that the temperature of the battery pack is always kept at the safety temperature value set by the Energy storage charging and discharging (EMS) intelligent control subunit of the power station;
5. the integrated battery replacement mechanical transmission unit of the battery replacement station further comprises a battery replacement disassembly and assembly device of the electric automobile, a battery pack disassembly device moving device/slide rail, a battery pack picking and placing and transferring device capable of moving up and down, a battery replacement vehicle information ETC recognition device, a battery replacement station battery replacement vehicle access control barrier gate, a CAN weak current signal transmission line and a direct current strong current signal transmission line;
the power change WCS/WMS control system intelligent control subunit is connected with an integrated micro-grid power change station MGCC intelligent control center, a power change station energy storage battery bin unit, an electric automobile power change dismounting device, a vertically movable battery pack picking and placing transmission device, a power change vehicle information ETC recognition device and a power change station potential change vehicle access control barrier gate through a CAN weak current signal transmission line;
the further power changing scheme of the power changing station comprises the following steps: firstly, when a current-changing vehicle with a current-changing potential finishes current changing, an intelligent control subunit of a current-changing WCS/WMS control system sends a release instruction to a current-changing station current-changing vehicle access control gate, the vehicle to be changed enters a current-changing station current-changing potential, an ETC identification device identifies current-changing vehicle information and sends the current-changing vehicle information to an intelligent control subunit of the current-changing WCS/WMS control system, the intelligent control subunit of the current-changing WCS/WMS control system further completes information exchange and verification with an integrated micro-grid current-changing MGC intelligent control center, the integrated micro-grid current-changing MGC intelligent control center sends a current-changing instruction to the intelligent control subunit of the current-changing WCS/WMS control system, and the further intelligent control subunit of the current-changing WCS/WMS control system synchronously runs (sends a disassembly instruction to an electric vehicle current-changing disassembly device, sends an opening control box instruction to a separated monomer modular battery pack control box subset, and the electric control box subset, Sending a battery pack taking and placing instruction to the vertically movable battery pack taking and placing transfer device), sending completion information to the battery replacing WCS/WMS control system intelligent control subunit after the electric vehicle battery replacing dismounting device finishes dismounting an electric vehicle (old) battery pack to be replaced, simultaneously moving to the vertically movable battery pack taking and placing transfer device taking and placing (battery pack to be replaced) area, grabbing full-charge battery packs in the drawers in the separated monomer modularized battery pack control box subset by the vertically movable battery pack taking and placing transfer device, and grabbing (old) battery packs to be replaced on the electric vehicle battery replacing dismounting device by the further vertically movable battery pack taking and placing transfer device;
the battery pack of the battery pack assembly to be charged is unlocked by the battery pack locking component unlocking/locking device and is fixed on the lower protective plate locking component by the preferable battery pack taking and placing and transferring device capable of moving up and down, and the battery pack to be charged is grabbed;
the preferable up-down movable battery pack taking and placing transfer device is distributed with (12011/12012) one-to-two (left-right) independent battery pack taking, placing and detaching devices (12011 and 12012) which are the same devices and work alternately in sequence, wherein the (12011) independent battery pack taking, placing and detaching devices and the (12012) independent battery pack taking, placing and detaching devices respectively correspond to two areas of the energy storage battery bin of the (110) battery changing station which are symmetrically divided by taking the (1203) battery changing disassembling and assembling device as a central line, and when the (12011) independent battery pack taking, placing and detaching device takes the old empty battery pack on the (1203) battery changing disassembling and assembling device, (12012) the independent battery pack taking, placing and detaching device is responsible for fully placing the electric battery pack to take (1203) the battery changing disassembling and assembling device; when (12012) the independent battery pack taking, placing and disassembling device takes (1203) an old empty battery pack on the independent battery pack taking, placing and disassembling device battery replacing and disassembling device, (12011) the independent battery pack taking, placing and disassembling device takes charge of fully discharging the electric battery pack to (1203) the battery replacing and disassembling device; (12011) The independent battery pack taking, placing and disassembling device and (12012) the independent battery pack taking, placing and disassembling device alternately operate in sequence;
the full-electric battery pack is further placed in the electric automobile battery replacement dismounting and mounting device, the full-electric battery pack is locked on a lower protection plate of the battery pack assembly to be replaced by the further up-down movable battery pack taking and placing and transferring device through the battery pack locking part unlocking/locking device, the further up-down movable battery pack taking and placing and transferring device sends completion information to the battery replacement WCS/WMS control system intelligent control subunit, the further battery replacement WCS/WMS control system intelligent control subunit sends a loading instruction to the electric automobile battery replacement dismounting and mounting device, and the further electric automobile battery replacement dismounting and mounting device moves to a battery replacement position to mount and fix the battery pack assembly at the position of the electric automobile chassis auxiliary battery pack assembly;
further, the internal operation data of the battery pack comprises current electric quantity of the battery pack, overcurrent information, overvoltage information, overheat information, quick charging frequency recording information of the battery pack, service life of the battery pack, overload frequency recording information of discharging load of the battery pack and the like;
6. the photovoltaic power generation panel is further connected with a direct current combiner box, the direct current combiner box is connected with a DC-DC boosting module, the DC-DC boosting module is connected with a photovoltaic power generation EMC intelligent control subunit, the photovoltaic power generation EMC intelligent control subunit is connected with a DC-AC inverter module, and the DC-AC inverter module is connected with an alternating current double-circuit distribution box EMS intelligent control subunit; the intelligent control subunit of the alternating current double-circuit distribution box EMS is connected with the electricity user side for power supply, and is connected with the alternating current distribution box of the electricity equipment of the supply integrated electricity changing station for power supply; the photovoltaic power generation panel converts solar energy into electric energy and transmits the electric energy to the direct current combiner box, the direct current combiner box transmits the electric energy to the DC-DC boost module, the DC-DC boost module converts low-voltage direct current into high-voltage direct current and transmits the high-voltage direct current to the photovoltaic power generation EMC intelligent control subunit, the photovoltaic power generation EMC intelligent control subunit transmits the high-voltage direct current to the DC-AC inverter module according to the control instruction of the integrated micro-grid power conversion station MGCC intelligent control center, the DC-AC inverter module converts the high-voltage direct current into high-voltage alternating current and transmits the high-voltage alternating current to the alternating current double-circuit power distribution box EMS intelligent control subunit, the alternating current double-circuit power distribution box EMS intelligent control subunit transmits the high-voltage alternating current to the power users according to the requirements, and simultaneously transmits the high-voltage alternating current to the alternating current power distribution box of the integrated power conversion station electric equipment; the optimized photovoltaic power generation EMC intelligent control subunit is connected with a PCS single-circuit rectifying box No. 2, the PCS single-circuit rectifying box No. 2 is connected with a main circuit PCS rectifying box, the main circuit PCS rectifying box is connected with an Energy storage charging and discharging EMS (Energy Management System) intelligent control subunit of the battery replacement station, and the EMS intelligent control subunit of the battery replacement station is connected with a battery storage battery compartment (BMS battery Management control) unit of the battery replacement station; the high-voltage direct current is transmitted to a No. 2 PCS single-circuit rectifying box as required by a further photovoltaic power generation EMC intelligent control subunit according to a control instruction of an MGCC intelligent control center of the integrated micro-grid power conversion station, the high-voltage direct current is adjusted by the No. 2 PCS single-circuit rectifying box and then transmitted to a main circuit PCS rectifying box, the main circuit PCS rectifying box transmits the high-voltage direct current to a power conversion station energy storage charging and discharging EMS intelligent control subunit, and the power conversion station energy storage charging and discharging EMS intelligent control subunit stores (charges) the high-voltage direct current in a power conversion station energy storage battery bin (BMS battery management control) unit;
7. the external commercial power grid is further connected with an EMS intelligent control subunit of the power distribution system, the EMS intelligent control subunit of the power distribution system is connected with an AC-DC module, the AC-DC module is connected with a PCS single-circuit rectifying box No. 1, the PCS single-circuit rectifying box No. 1 is connected with a main PCS rectifying box, the main PCS rectifying box is connected with an energy storage charging and discharging EMS intelligent control subunit of the power switching station, and the energy storage charging and discharging EMS intelligent control subunit of the power switching station is connected with a battery storage battery compartment (BMS battery management control) unit of the power switching station; further, the external utility power grid transmits high-voltage alternating current to a power distribution system EMS intelligent control subunit, the power distribution system EMS intelligent control subunit transmits the high-voltage alternating current to an AC-DC module according to a control instruction of an integrated micro-grid power conversion station MGCC intelligent control center, the AC-DC module converts the high-voltage alternating current into high-voltage direct current and transmits the high-voltage direct current to a No. 1 PCS single-circuit rectifying box, the No. 1 PCS single-circuit rectifying box adjusts the high-voltage direct current and transmits the high-voltage direct current to a main PCS rectifying box, the main PCS rectifying box transmits the high-voltage direct current to a power conversion station energy storage charging and discharging EMS intelligent control subunit, and the power conversion station energy storage charging and discharging EMS intelligent control subunit stores (charges) the high-voltage direct current in a power conversion station energy storage battery compartment (BMS battery management control) unit; preferably, the external commercial power grid is connected with an alternating current double-circuit distribution box EMS intelligent control subunit, the alternating current double-circuit distribution box EMS intelligent control subunit is connected with an electricity user side for power supply, and meanwhile, the alternating current double-circuit distribution box EMS intelligent control subunit is connected with an alternating current distribution box of the supply integrated electricity changing station for power supply; further, the external commercial power grid transmits high-voltage alternating current to an alternating current double-circuit distribution box EMS intelligent control subunit, the alternating current double-circuit distribution box EMS intelligent control subunit transmits the high-voltage alternating current to the electricity user side according to needs, and simultaneously transmits the high-voltage alternating current to an alternating current distribution box of the electric equipment of the integrated electricity conversion station;
8. further, the battery replacing station energy storage battery compartment (BMS battery management control) unit is connected with a battery replacing station energy storage charging and discharging EMS intelligent control subunit, the battery replacing station energy storage charging and discharging EMS intelligent control subunit is connected with a main circuit PCS rectification box, the main circuit PCS rectification box is connected with a DC-AC inverter module, and the DC-AC inverter module is connected with an alternating current two-way distribution box EMS intelligent control subunit; the intelligent control subunit of the alternating current double-circuit distribution box EMS is connected with the electricity user side for power supply, and is connected with the alternating current distribution box of the electricity equipment of the supply integrated electricity changing station for power supply; the system comprises a power conversion station energy storage battery cabin (BMS battery management control) unit, a power conversion station energy storage charging and discharging EMS intelligent control subunit, a main line PCS rectifier box, a DC-AC inverter module, an AC-AC distribution box EMS intelligent control subunit, an integrated micro-grid power conversion station MGCC intelligent control center control instruction, a main line PCS rectifier box, a high-voltage DC-AC inverter module, a DC-AC inverter module, an AC-AC distribution box EMS intelligent control subunit, an electric user side and an integrated power conversion station electric equipment AC distribution box, wherein the integrated power conversion station energy storage battery cabin (BMS battery management control) unit transmits high-voltage DC electricity to the main line PCS rectifier box according to the control instruction;
9. in a further embodiment of the integrated microgrid power conversion station, the photovoltaic power generation EMC intelligent control subunit determines whether there is a sunshine time period or not, if not, the determination is finished, if so, it further determines whether there is a peak electricity price period or not, and if so, the photovoltaic power generation supplies power to the electricity consumer side; preferably, if the current electricity price is not the electricity price peak section, further judging whether the energy storage battery bin unit of the electricity exchanging station needs to be charged, if the energy storage battery bin unit of the electricity exchanging station does not need to be charged, supplying power to the electricity user side through photovoltaic power generation, and if the energy storage battery bin unit of the electricity exchanging station needs to be charged, charging the energy storage battery bin unit of the electricity exchanging station through the photovoltaic power generation;
10. the external mains supply power grid EMS intelligent control subunit further judges whether the current power utilization price peak section is used or not, if not, the current power utilization price peak section is further judged, if so, the power utilization price level section is further judged, if the power utilization price level section is used, the power conversion station energy storage battery bin unit is further judged whether to need charging, if the power conversion station energy storage battery bin unit does not need charging, the external mains supply power grid supplies power to the power utilization user side, and if the power conversion station energy storage battery bin unit needs charging, the external mains supply power grid charges the power conversion station energy storage battery bin unit; the optimal external mains supply power grid EMS intelligent control subunit judges whether a current power consumption price peak section exists or not, if the current power consumption price peak section exists, the power change WCS/WMS control system intelligent control subunit further judges whether a current power change vehicle needs power change, if the current power change vehicle needs power change, a power change vehicle demand battery pack is reserved, and further the power change vehicle needs power change; if no current battery replacing vehicle needs to replace the battery, further judging whether the unit electric quantity of the energy storage battery compartment of the current battery replacing station is sufficient, and if the unit electric quantity of the energy storage battery compartment of the battery replacing station is sufficient, further supplying power to the electricity utilization user side by the energy storage battery compartment unit of the battery replacing station; preferably, if the unit of the energy storage battery bin of the current power changing station is insufficient in electric quantity, the external commercial power grid is further used for supplying power to the power utilization user side;
further the above battery pack or battery pack generally refers to battery pack or battery pack integration.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a general schematic frame diagram of an integrated photovoltaic power generation and user-side microgrid energy storage power conversion station architecture applied to a dual-energy double-battery-pack electric vehicle.
Fig. 2 is an energy distribution control flow chart of the integrated photovoltaic power generation and user-side microgrid energy storage integrated power conversion station architecture applied to the dual-energy double-battery-pack electric vehicle.
Fig. 3 is a schematic structural diagram of a power swapping system in the integrated power swapping station architecture according to the present invention.
Fig. 4 is a schematic diagram of a structure of a subset of a separated single modular battery pack/battery pack control box in an energy storage battery compartment rack in the integrated power station architecture according to the present invention.
Fig. 5 is a schematic structural diagram of a dual-energy dual-battery-pack electric vehicle applied to a comprehensive photovoltaic power generation and user-side microgrid energy storage integrated power conversion station of the dual-energy dual-battery-pack electric vehicle.
Fig. 6 is a schematic structural view of an auxiliary battery pack of the dual-energy double-battery-pack electric vehicle according to the present invention.
Fig. 1, fig. 3:
11: an integrated micro-grid power conversion station MGCC (a monitoring and scheduling management unit comprises a central control system) control main unit (an integrated main monitoring platform, a manual control platform, an external communication main interface and the like);
12: an Energy storage charging and discharging EMS (Energy Management System) intelligent control subunit of the battery replacement station;
(110: a battery replacement station energy storage battery compartment rack (BMS battery management control) unit; 120: a battery replacement mechanical unit/weak current signal CAN subset; 130: a battery replacement potential/battery replacement vehicle/CAN subset);
13: a power change WCS/WMS (Warehouse Management System)/Warehouse Control System) Control System intelligent Control subunit (weak current signal CAN total set);
14: an EMS intelligent control subunit of the power distribution system;
41: an external utility power grid; 42: an AC-DC module; 43: no. 1 PCS (energy storage converter is also called Power Conversion System) one-way rectifier box; 40: a main circuit PCS rectifier box; ) (ii) a
15: a photovoltaic power generation EMC intelligent control subunit;
51: photovoltaic power generation panels/solar panels; 52: a DC combiner box; 53: a DC-DC boost module; 50: no. 2 PCS single-circuit rectifying box; 55: a DC-AC inverter module;
16: an EMS intelligent control subunit of an alternating current double-circuit distribution box;
61: the user uses the electric side (power is supplied to the external power consumption end from the inside of the power conversion station); 62: supplying an alternating current distribution box of electric equipment of the integrated power conversion station;
17: a weak current signal transmission line CAN (Controller Area Network);
fig. 3 and 4:
1101: the battery compartment frame single battery compartment subset (which comprises a transverse arrangement (1 column 1X1-1Xn, 2 columns 2X1-2 Xn) and (L1-L2-Ln) which are stacked up and down in a multilayer manner);
1102: a split, unitary modular battery pack/pack control box subset;
11021: the battery pack upper and lower guide grooves (from J01-J02-J0 n) are arranged on the periphery of the inner side of the battery pack control box inner drawer; 11022: the cooling pipes/sheets are arranged on the contact surface of the bottom surface of the drawer in the battery pack control box and the battery pack; 11023: a slide rail/track device (comprising 2-4 groups of slide rails on the upper, lower, left and right sides); 11025: the battery pack controls the outer frame of the box; 11026: the battery pack controls the drawer in the box; 11027: a charge-discharge interface/data acquisition interface (the inside of the battery pack control box is connected with the battery pack); 11028: a push-pull mechanism (a push-pull power unit for controlling the connection of the inner drawer and the outer frame of the box); 11029: BMS electric control integrated circuit board module; 11030: a line interface integration module; 11031: charging and discharging a strong current interface; 11032: the CAN subset intelligently controls the weak current signal interface; ) (ii) a
FIG. 3: 1201: a battery pack taking and placing and transferring device (a battery pack/battery pack is transferred between a battery bin frame and a battery pack disassembling device) capable of moving up and down;
(12011/12012: a one-to-two (left and right) independent battery pack taking and placing dismounting device (12011 and 12012 are the same devices and work alternately in turn); 12013: a battery pack locking part unlocking/locking device);
1202: the battery pack taking and placing transfer device capable of moving up and down moves the sliding rail/track in the X direction; 1203: the electric automobile battery replacement dismounting device is movable; 1204: a battery pack removal device moving device/slide rail; 1205: the charging station charging vehicle enters and exits the control barrier;
1206: an ETC identification device (ETC system) for battery-replacing vehicle information, which is used for wireless communication and information exchange between a vehicle-mounted device installed On a vehicle and an antenna installed in a battery-replacing area of a battery-replacing station and mainly comprises a vehicle automatic identification system, a central management system, other auxiliary facilities and the like, wherein the vehicle automatic identification system comprises a vehicle-mounted unit (On 2 oarddunit, O2U) also called a Transponder (Transponder) or an electronic Tag (Tag), a roadside unit (Roadiunit, RSU), a loop sensor and the like, the O2U contains identification information of the vehicle, the identification information is generally installed On a windshield in front of the vehicle, the RSU is installed beside a battery-replacing position of the battery-replacing vehicle, the loop sensor is installed under the ground of a driveway, the central management system is provided with a large-sized database for storing information of a large number of registered vehicles and users, when the vehicle enters the battery-replacing station to replace the potential, the loop sensor senses the vehicle, the RSU sends out an inquiry signal, the O2U responds, bidirectional communication and data exchange are carried out, and the central management system acquires vehicle identification information, such as information of an automobile ID number, an automobile type and the like, and corresponding information in a database are compared, judged, collected and identified);
fig. 5 and 6: 1301: the double-energy main and auxiliary double-battery-pack electric automobile;
(13011: electric vehicle VCU/BMS master control unit; 13012: main battery pack; 13013: sub-battery pack assembly; 13014: electric vehicle power unit motor unit; 13015: electric vehicle charging unit; 130121: main battery pack electrical signal interface; 130122: sub-battery pack electrical signal interface)
(130131: lower protection plate of auxiliary battery pack/battery pack assembly, 130132: auxiliary battery pack/battery pack, 130133: locking component (fixing auxiliary battery pack assembly on electric vehicle chassis from bottom to top), 130135: locking component (fixing auxiliary battery pack on lower protection plate from top to bottom), 130136: bidirectional guide positioning block (same component for butt joint of auxiliary battery pack assembly and electric vehicle chassis, bidirectional guide positioning block for butt joint of auxiliary battery pack assembly and battery pack control box for butt joint of auxiliary battery pack, 1301221: strong electric interface of auxiliary battery pack, 1301222: weak electric signal interface of auxiliary battery pack, 1301322: auxiliary battery pack liquid cooling pipe interface).
Detailed Description
The first embodiment is as follows: refer to FIGS. 3, 5, and 6
The daily use mode of the double-battery-pack (1301) electric automobile is as follows: in a charging mode and a battery replacement mode, each (1301) electric vehicle is provided with two sets of energy supply modules ((13012) main battery pack, (130132) auxiliary battery pack 1+1 structure), (130132) auxiliary battery pack is positioned at the central position of front and rear wheels of the (1301) electric vehicle and is of a replaceable structure, and (13012) main battery pack can be distributed at any fixed position of the (1301) electric vehicle according to the design requirements of vehicle manufacturers, wherein (130132) the auxiliary battery pack can be quickly detached from (1301) the electric automobile at the battery changing station, and (13012) the main battery pack is fixed on (1301) the double-battery electric automobile and cannot be quickly detached at the battery changing station, and the battery control system is composed of (13011) a master controller + (130121) a main battery pack controller + (130122) an auxiliary battery pack controller (1 + 2);
in the invention, (1301) the main battery pack of the double-battery electric vehicle (13012) freely customizes the electric energy capacity of the battery pack by an electric vehicle manufacturer, designs and applies to the volume of the auxiliary battery pack (130132) of all (1301) electric vehicles (the middle position of the front and rear wheels, does not occupy the space of passengers in the vehicle) uniformly, uses the standard uniformly for all the auxiliary battery packs of the electric vehicles (130132), and is provided with (130132) an auxiliary battery pack upgradable power management module (for corresponding upgrading after updating the future battery technology), on the basis, each (1301) electric vehicle manufacturer adjusts (13012) the size, the volume, the shape, the installation position and the like of the main battery pack according to the sizes of different vehicle types, (1301) the electric vehicle manufacturer can choose not to be provided with (130132) the auxiliary battery pack when a new vehicle leaves the factory, only needs to be provided with (13012) the main battery pack, and simultaneously performs sealing protection on the position of the auxiliary battery pack (130132), when the new car is delivered to the customer, the customer can selectively rent or buy (130132) the auxiliary battery pack from the battery changing station according to the requirement, so that the production cost of the new car of the electric car manufacturer is reduced, and the buying cost of the new car of the customer is also greatly reduced; when the double-energy main-auxiliary double-battery pack (1301) electric automobile is not provided with the auxiliary battery pack (130132), the main battery pack (13012) in the electric automobile (1301) supplies electric energy to the electric automobile (1301) independently to drive the electric automobile (1301) to run, when a customer uses the electric automobile (1301) at ordinary times, (13011) an electric automobile master controller automatically identifies (130132) whether the auxiliary battery pack is provided with intelligent control, and the electric automobile master can return the auxiliary battery pack to a power station when the customer does not need to use (130132) the auxiliary battery pack and then can continue to use the auxiliary battery pack, so that the expenditure of the user can be reduced;
the power supply mode comprises the following steps: (13012) the main battery pack and the (130132) auxiliary battery pack are respectively provided with a set of battery management module at the same time, the battery management modules can detect the electric quantity of the corresponding battery packs, meanwhile, the two sets of battery packs are simultaneously connected to (13011) a vehicle main controller in a parallel connection mode, and the (13011) main controller provides three different power supply driving modes for the (1301) electric vehicle: i, a standard driving mode; II, a high-performance sports driving mode; III, an energy-saving driving mode (better adjustable through gears);
(1301) the electric vehicle control system respectively prompts two groups of battery electric quantities to a user through a dashboard or a central console, (1301) the electric vehicle user switches three modes to use according to the electric quantity continuation and performance requirements of the main battery and the auxiliary battery; the main controller intelligently adjusts the output power, the current and the electric quantity output size (measured by percentage% symbols and Arabic numerals) of the main battery pack (130132) and the auxiliary battery pack according to the threshold set by the SOC (state of charge) (SOC threshold can be adjusted in a central control interaction system);
the main differences of the three different driving modes are that (130132) the soc threshold value I of the auxiliary battery pack for charging (13012) the main battery pack is set in a high-performance mode, (130132) the auxiliary battery pack charges (13012) the main battery pack in the whole period, II) the standard mode, (130132) the auxiliary battery pack charges (13012) the main battery pack according to the soc threshold value, III) the energy-saving mode, (130132) the auxiliary battery pack does not charge (13012) the main battery pack;
i, three kinds of different electric quantity control modes of standard driving mode include: the method comprises the following steps of (1) performing intelligent control mode, (13012) performing active output mode on a main battery pack, and (130132) performing active output mode on an auxiliary battery pack (three different electric quantity control modes can be adjusted through a knob or a button at a vehicle central control position);
intelligent control mode: (130132) the secondary battery pack charges (13012) the primary battery pack according to the soc threshold;
(13012) When the master battery pack soc is larger than 80 percent, (13012) the master battery pack outputs 70 percent, and (130132) the auxiliary battery pack outputs 30 percent;
(13012) The master battery pack soc is greater than 60%, is less than 80% (13012) and 50% of the master battery pack output, and (130132) the slave battery pack output is 50%;
(13012) The master battery pack soc is greater than 45%, is less than 60% (13012) and 30% of the master battery pack output, and (130132) the slave battery pack output is 70%;
(13012) The master battery pack soc is lower than 40%, (13012) the master battery pack stops outputting, (130132) the slave battery pack outputs 100%;
(13012) The master battery pack soc is lower than 30%, (130132) the slave battery pack charges (13012) the master battery pack;
(13012) active output mode of the master battery pack: (13012) The master battery pack soc is larger than 80%, (13012) the master battery pack outputs 100% (130132) the slave battery pack does not output;
(13012) The master battery pack soc is greater than 40%, is lower than 80% (13012) and outputs 70% of the master battery pack, and (130132) outputs 30% of the auxiliary battery pack;
(13012) The master battery pack soc is greater than 20%, is lower than 40% (13012) and outputs 30% of the master battery pack, and (130132) outputs 70% of the auxiliary battery pack;
(13012) The master battery pack soc is lower than 20%, (13012) the master battery pack stops outputting (130132) the slave battery pack output 100%;
(13012) The master battery pack soc is lower than 10%, (130132) the sub-battery pack charges (13012) the master battery pack;
③ (130132) the active output mode of the auxiliary battery pack: (13012) The master battery pack soc is greater than 70%, (13012) the master battery pack outputs 30%, (130132) the slave battery pack outputs 70%;
(13012) The main battery pack (soc is more than 50% and less than 70%, (13012) the main battery pack stops outputting, (130132) the auxiliary battery pack outputs 100%, (130132) the auxiliary battery pack charges the main battery pack (13012) at the same time;
II, high-performance sports driving mode: (130132) the auxiliary battery pack preferentially charges the main battery pack (13012) in a full period, (13012) the main battery pack supplies the total power, current and electric quantity according to 100% output power, current and electric quantity, (130132) the auxiliary battery pack automatically adjusts the output power to complement the total power, current and electric quantity requirements according to the output power, current and electric quantity of the main battery pack (13012), (13012) the main battery pack preferably supplies the main output power, current and electric quantity, (13012) when the output power, current and electric quantity of the main battery pack are insufficient, (130132) the auxiliary output power, current and electric quantity of the auxiliary battery pack;
III, energy-saving driving mode: (preferably (130132) the secondary battery pack does not supply power to (13012) the primary battery pack);
(13012) The master battery pack soc is greater than 70%, (13012) the master battery pack outputs 30%, (130132) the slave battery pack outputs 70%;
(13012) The soc of the main battery pack is lower than 70%, and the auxiliary output power of the auxiliary battery pack is output by (130132) and the auxiliary output power of the main battery pack is (13012) (when the power of the auxiliary battery pack is insufficient by (130132), (13012) the auxiliary output power of the main battery pack).
(130132) sub-battery safe operating mode strategy: (11) integrated power station remote data monitoring center (MGCC monitoring and dispatching management unit includes central control system), through each (130132) auxiliary battery set built-in communication chip (further including GPS, Beidou communication positioning, GPRS, 3rd-Generation, 3G, 4th Generation mobile communication technology, 5th Generation mobile network, 5th Generation wireless system, 5th-Generation, etc.) network system upload battery set real-time use information to (11) data monitoring center, (11) data monitoring center monitors each battery set safety parameter, at the same time (11) data monitoring center locates (130132) auxiliary battery set position by this method, guarantees battery set safety, (1301222) auxiliary battery set communication interface and (1301) electric vehicle corresponding communication connection interface built-in verification communication protocol, when communication protocol fails, (1301221) the auxiliary battery pack power-on interface and (1301) the corresponding power-on interface of the electric automobile are automatically disconnected, (130132) the auxiliary battery pack cannot supply power to the vehicle;
(130132) an anti-disassembly alarm device is arranged in the auxiliary battery pack, (130132) the auxiliary battery pack needs to be reported by a data system of a (11) maintenance center before being normally maintained and disassembled, and if maintenance information is not reported by the system for disassembly, the data center automatically triggers an alarm;
meanwhile, (130132) the auxiliary battery pack is provided with an automatic collision ejecting device, when (1301) the electric automobile collides, the connection structure of the auxiliary battery pack and the automobile body is automatically disconnected (130132), so that the automobile body and personnel in the automobile are prevented from being secondarily injured by burning, explosion and the like after the battery pack is impacted;
(130132) arranging a heat dissipation system (1301322) at the position of an auxiliary battery pack, (130132) independently designing and configuring a heat dissipation system (1301322) (comprising a liquid cooling mode, an air cooling heat dissipation mode, a refrigerant heat dissipation mode and the like) with the auxiliary battery pack, wherein when the auxiliary battery pack (130132) does not supply power to a main controller (1301) of the electric automobile, (130132) the auxiliary battery pack only supplies power to a main battery (13012) or a power system (13014) in a low current mode, the battery energy conversion efficiency is low, the battery pack is low in self-heating, and (13011) the main controller does not need to start (130132) the heat dissipation system (1301322), and when the electric automobile (1301) is started in a high-performance mode and the main and auxiliary battery packs simultaneously supply power to the main controller, the heat dissipation system is started to keep (130132) the auxiliary battery pack in a constant-temperature state;
(130132) the independent liquid cooling heat dissipation system assembly of the PACK of the auxiliary battery PACK is set to (1301) when the electric automobile stops and shuts down, (1301) the cooling device in the electric automobile automatically withdraws cooling liquid, when the electric automobile enters the power station, the electric automobile stops and shuts down first, (1301) the cooling liquid is automatically withdrawn by the cooling device in the electric automobile when the electric automobile shuts down, when the speed of the electric automobile is lower than a certain speed, the cooling liquid can be withdrawn automatically, when the electric automobile starts up, when the speed of the electric automobile reaches a certain speed, (130132) when the auxiliary battery PACK starts to supply power with high power, the liquid cooling system starts up again;
(130132) the cooling liquid interface of the auxiliary battery pack liquid cooling heat dissipation device (1301322) adopts a two-way interlocking structure, the cooling liquid interface of the auxiliary battery pack (1301322) is communicated with the cooling liquid interface inside the electric automobile (1301) when the cooling liquid interfaces are connected, and the cooling liquid interfaces are locked when the cooling liquid interfaces are separated, so that the cooling liquid cannot leak when the cooling liquid interfaces (1301322) are separated.
A charging mode: (1301) when the electric automobile is charged, two charging modes (1, only charging the main battery pack (13012) are adopted, 2, the main battery pack (13012) and the auxiliary battery pack (130132) are simultaneously charged, at the moment, the two groups of batteries are disconnected and are distributed and charged by the charging module (13015), the two groups of batteries are not interfered with each other, current cannot repeatedly flow in the two groups of batteries, the service life of the battery pack is prolonged), the charging modes are controlled by the electric automobile control system (1301) and the charging module (13015), and a control button is installed at the charging port of the electric automobile (13015), and a user of the electric automobile selectively operates as required during charging;
an owner can use the charging unit in the self-service charging pile to charge the main battery pack of the double-battery electric automobile (13012) in a low-current charging mode, and the main battery pack is independently used (13012) without using (130132) an auxiliary battery pack, so that daily use requirements are met by self-charging in a weekday; when the secondary battery pack is frequently used (130132) by a vehicle owner at ordinary times, the batteries can be detached and replaced without going to a power conversion station, household alternating current can be used for charging the primary battery pack and the secondary battery pack of the electric vehicle through a low-power charger (13015), and the use convenience is improved. The investment of installing a high-power charging pile and a charger is avoided, and the cost is saved;
and (3) replacing the power station: (1301) the electric vehicle control system prompts the user of the electric quantity of the two groups of batteries through an instrument panel or a center console, when the electric quantity of the auxiliary battery pack is insufficient (130132), the electric vehicle user opens the electric vehicle to a battery replacement station supporting (130132) the auxiliary battery pack battery replacement service, the battery replacement station only performs battery replacement operation on (130132) the auxiliary battery pack, (130132) the auxiliary battery pack provides corresponding service for the vehicle user through the battery replacement station, (130132) a non-contact Radio Frequency Identification (RFID) NFC chip is arranged in the auxiliary battery pack, information such as battery pack codes and identification codes is stored, each (130132) auxiliary battery pack is provided with a corresponding code storage chip and is arranged in the battery pack to prevent disassembly and damage, the battery replacement station automatically identifies the chip codes when replacing (130132) the auxiliary battery pack each time, simultaneously detects (130132) the residual electric quantity of the auxiliary battery pack, and calculates (130132) the use electric quantity of the auxiliary battery pack, and then charging for paid services such as corresponding package.
Example two: refer to fig. 4, 5, and 6
(13013) The sub-battery assembly structure:
aiming at the problem that dirt attachments generated by a vehicle chassis in the process of replacing batteries in a quick-change battery pack scheme are brought into mechanical transmission parts inside a battery replacing station when the batteries are replaced, (13013) (13013) an auxiliary battery pack assembly structure comprises (130132) a battery pack/(130132) a battery pack + (130131) lower protection plate (1 + 1) double-layer structure, wherein a heat insulation layer (made of heat insulation materials) is distributed between the lower protection plate (130131) and the battery pack (130132), so that the battery pack is isolated from the external temperature (130132), the battery pack (130132) is prevented from influencing the use safety, electric capacity, service life and the like of the battery pack (130132) due to the cold-heat difference of the four-season change temperature in the external environment of the electric automobile (1301), and the battery pack (130132) is locked and fixed above the lower protection plate (130131) by a locking part (130135) from top to bottom; (13013) The auxiliary battery pack assembly is locked and fixed (1301) on a chassis of the electric automobile frame by a (130133) locking component from bottom to top; the (130135) locking component can adopt a bolt structure expanding from inside to outside, and the outer ring of the bolt is in a stepped (double-layer or multi-layer) conical structure, so that the stability is better; wherein, in order to prevent external liquid from permeating (13013) the inside of the sub-battery assembly, (130131) the periphery of the upper surface of the lower guard plate is provided with a waterproof rubber ring, so as to prevent (13013) the inside of the sub-battery assembly from entering water or other liquid to cause short circuit damage;
when the electric automobile is replaced in the battery replacing station (1301), firstly, the battery pack disassembling and assembling device of the battery replacing station (1203) completely dissembles the battery pack assembly (13013); secondly (1201) the battery pack picking and placing and transferring device capable of moving up and down grabs (130132) the battery pack; wherein (130132) battery package design all around has (130136) two-way direction locating piece, and the position design that the backplate contacts all around with (130132) battery package has the direction constant head tank under (130131) simultaneously, (130136) two-way direction block shape is by upper and lower both ends ellipse, middle cylinder, the effect is: when the (130132) battery pack is detachably fixed on the (130131) lower guard plate, the lower end of the guide block (130136) is used for guiding when the battery pack is in contact with the (130131) lower guard plate, so that the (130132) battery pack and the (130131) lower guard plate are accurately positioned, and the (130132) battery pack is fixed on the (130131) lower guard plate to form the (13013) battery pack assembly; further fix (13013) group battery assembly lock in (1301) electric automobile chassis, the mode is: when the battery pack assembly (13013) is in contact with the electric automobile chassis (1301), the upper end of the bidirectional guide positioning block (130136) is guided into the guide positioning groove of the battery pack assembly (1301) of the electric automobile chassis (13013) so as to accurately position the battery pack assembly (13013) and the battery pack assembly (1301) of the electric automobile chassis, and therefore the battery pack assembly (13013) is fixed on the electric automobile chassis (1301); meanwhile, (130132) the process of placing the battery pack into (1102) the battery compartment rack to control the box subset to be charged is as follows: and (130132) when the battery pack is in contact with the (11026) battery pack control box inner drawer, the (130136) bidirectional guide positioning block lower end guides the (130132) battery pack into the (11026) battery pack control box inner drawer peripheral guide groove, and the (130132) battery pack is placed and fixed in the battery compartment frame (1102) control box.
With further reference to fig. 5, 6:
firstly, in the (13013) auxiliary battery pack assembly (130132), one side of the upper surface of a battery pack is provided with a battery (1301221) charging and discharging strong electric interface and a (1301222) information transmission weak electric interface, and the other side is provided with a (1301322) cooling liquid connecting interface of a liquid cooling device;
on one hand, the charging and discharging strong-current interface (1301221) is connected with the electric automobile strong-current interface (1301) to discharge to the electric automobile power unit (13014); on the other hand, (130132) when the battery pack is placed in the battery pack control box (1102), the battery pack is connected with the line interface integrated module (11030) in the control box (1102) to perform charging and discharging and data transmission; secondly, (1301222) the information transmission weak current interface is connected with (1301) a VCU/BMS master controller of the electric automobile (13011) for transmission (information such as battery power, battery thermal management and the like); it should be noted that: (1301322) the cooling liquid connection interface and the (130122) electrical signal connection interface are distributed at different positions on two sides of the upper surface of the (130132) battery pack, so that the cooling liquid is prevented from entering the electrical signal connection interfaces; further optimization techniques: (130132) the cooling liquid interface of the auxiliary battery pack liquid cooling heat sink (1301322) adopts a two-way interlocking structure, the (130132) auxiliary battery pack cooling liquid interface is communicated with the (1301) cooling liquid interface in the electric automobile when being connected, and the interfaces are locked when being separated, so that the cooling liquid can not leak when the cooling liquid interfaces are separated.
Example four: refer to FIGS. 3, 4, and 6
Trade power station (110) energy storage battery storehouse structure: (110) the energy storage battery bin unit of the battery changing station comprises a basic bin frame structure, (1101) a battery bin frame single battery bin subset, (1102) a separated single modular battery pack/battery pack control box subset;
firstly, the single battery bin subsets of the battery bin frame are arranged and distributed in a basic bin frame structure (transversely arranged 1 row 1X1-1Xn, 2 rows 2X1-2Xn, and formed by overlapping an upper layer and a lower layer (L1-L2-Ln)) in a multilayer mode;
wherein (1102) the split, one-piece, modular battery pack/pack control box subset comprises: (11025) A battery pack control box outer frame (fixed on a battery compartment frame subset), (11026) a battery pack control box inner drawer, battery pack (11021) upper and lower guide grooves arranged around the inner side of the battery pack control box inner drawer (11026), cooling pipes/sheets (11022) arranged on the contact surface of the battery pack control box inner drawer (11026) and the battery pack (130132) bottom surface, a sliding rail/rail device (11023) comprising upper, lower, left and right 2-4 groups of sliding rails, and a charging and discharging interface/data acquisition interface ((1102) connected with the battery pack (130132) in the battery pack control box, (11028) The push-pull mechanism ((11026) controls the push-pull power unit connected with the drawer in the box and (11025) the outer frame), (11029) BMS electric control integrated board circuit module, (11030) line interface integrated module, (11031) charging and discharging strong current interface, and (11032) CAN subset intelligent control weak current signal interface;
(11023) The sliding rail/rail device comprises 2-4 groups of sliding rails, namely an upper sliding rail, a lower sliding rail, a left sliding rail, a right sliding rail and a sliding block, wherein the upper sliding rail, the lower sliding rail and the sliding block are installed in a staggered positive and negative mode, the sliding rail device assists (11028) the movement of the push-pull mechanism, and meanwhile, the sliding rail device can play a role in stabilizing and reinforcing to prevent the damage of a connecting structure caused by the repeated telescopic motion of the inner drawer; (11026) The control box inner drawer is fixedly connected with the (11025) control box outer frame through a sliding rail device and a (11028) push-pull mechanism;
(1102) the monomer modular control box subset is fixed in the cell bin frame monomer cell bin subset of the basic bin frame structure, the basic bin frame structure does not need high precision, only simple frame construction is needed, and construction cost is reduced; further (1102) the subset of the separated single modular battery pack/battery pack control box is installed in (the subset of the single battery compartment of the battery compartment frame in the basic compartment frame structure), and only the subset (position degree) of the separated single modular battery pack/battery pack control box is needed to be corrected (1102); therefore, the battery pack/battery pack control box subset of the monomer modularization (1102) can be increased/decreased according to the energy storage capacity requirement of the integrated power conversion station, the workload and difficulty of early construction and reconstruction expansion are reduced, and the energy storage capacity of the power conversion station can be freely adjusted and set; on the other hand, the problems that an energy storage battery bin of the power changing station (110) is easy to damage and frequently fails are transferred to (1102) a separated single modular battery pack/battery pack control box subset, when the (1102) separated single modular battery pack/battery pack control box subset fails, only the (1102) separated single modular battery pack/battery pack control box subset is singly detached for maintenance or replacement, the maintenance and repair of the battery bin of the integral power changing station are not needed, and the later maintenance difficulty is reduced; when dangerous faults such as spontaneous combustion high temperature and the like occur in the energy storage battery compartment single body (130132) of the power conversion station (110), the separated single modular battery pack/battery pack control box subset (1102) can be rapidly detached, so that the further diffusion of the dangerous accidents is prevented;
when (1201) the battery pack up-down movable battery pack taking and placing transfer device places (130132) battery packs in the pushed out (11026) control box inner drawer, (130132) the lower ends of (130136) bidirectional guide positioning blocks around the battery packs are in butt joint with (11021) guide grooves around the (11026) control box inner drawer, and the battery packs are guided (130132) to be accurately positioned and fixed on the (11026) control box inner drawer;
(11029) The BMS electric control integrated board circuit module is connected with a plurality of units such as [ (11022) cooling pipes/sheets, (11028) push-pull mechanisms, (11027) charge-discharge interfaces/data acquisition interfaces, (11030) circuit interface integrated modules ] and the like;
(11029) The BMS electric control integrated board circuit module feeds back information such as collected (130132) inside a battery pack (BMS battery management and battery thermal management) to (12) a power conversion station energy storage charging and discharging EMS intelligent control subunit through (11032) a CAN subset intelligent control weak current signal interface, and the (12) power conversion station energy storage charging and discharging EMS intelligent control subunit transmits the information to (11) an integrated micro-grid power conversion station MGCC intelligent control center;
(11022) The cooling pipe/sheet collects (130132) temperature data of the battery pack through (11027) a charge-discharge interface/data acquisition interface, the start-stop of cooling operation is automatically and intelligently adjusted according to the safety temperature value set by (12) the intelligent control subunit of the energy storage charge-discharge EMS of the power switching station, so that (130132) the temperature of the battery pack is always kept at the safety temperature value set by (12) the intelligent control subunit of the energy storage charge-discharge EMS of the power switching station, and when (130132) the temperature of the battery pack exceeds (12) the safety temperature value set by the intelligent control subunit of the energy storage charge-discharge EMS of the power switching station, (11022) the cooling pipe/sheet automatically starts cooling operation; when the temperature of the battery pack (130132) is lower than a safe temperature value set by an energy storage charging and discharging EMS intelligent control subunit of the power conversion station (12), (11022) the cooling pipe/sheet automatically stops cooling operation;
when the battery is replaced by the battery replacing vehicle, on one hand, an integrated micro-grid battery replacing station MGCC intelligent control center (11) sends a control command to a battery replacing WCS/WMS control system intelligent control subunit (13), the battery replacing WCS/WMS control system intelligent control subunit (13) sends a command to a BMS electric control integrated board circuit module (11029), and further the BMS electric control integrated board circuit module (11029) controls a push-pull mechanism (11028), the push-pull mechanism (11028) pushes out a drawer in a control box (11026), and the battery pack taking and placing transfer device capable of moving up and down grabs a fully-charged battery pack (130132), so that the battery pack transfer operation from the energy storage battery bin (110) to the battery pack taking and placing transfer device (130132) of the battery pack taking and placing transfer device capable of moving up and down (1201) is completed; after the operation is finished, (11029) the BMS electric control integrated board circuit module controls (11028) the push-pull mechanism, (11028) the push-pull mechanism retracts (11026) the drawer in the control box, and simultaneously, (13) the power switching WCS/WMS control system intelligent control subunit records that the (1102) control box subset is a vacant subset. On the other hand, (11) the integrated microgrid switching station MGCC intelligent control center sends a control instruction to (13) the intelligent control subunit of the switching WCS/WMS control system, (13) the intelligent control subunit of the switching WCS/WMS control system sends an instruction to (11029) the BMS electric control integrated board circuit module, further (11029) the BMS electric control integrated board circuit module controls (11028) the push-pull mechanism, (11028) the push-pull mechanism pushes out (11026) the control drawer in the box, (1201) the vertically movable battery pack taking and placing transfer device places the empty and old (130132) battery pack in (11026) the control drawer in the box, completes (1201) the battery pack transfer operation from the vertically movable battery pack taking and placing transfer device to (110) the energy storage battery compartment (130132), after the operation is completed, (11029) the electrically controlled BMS integrated board circuit module controls (11028) the push-pull mechanism, (11028) the push-pull mechanism retracts (11026) the control drawer in the box, and simultaneously (13) the intelligent control subunit of the power change WCS/WMS control system records the control box subset as (130132) the occupation state of the battery pack.
Example five:
the power changing operation mode of the power changing station is as follows: refer to fig. 1, 3, 4, 5, and 6
The integrated battery replacement mechanical transmission unit of the battery replacement station comprises an electric automobile (1203) battery replacement disassembly and assembly device, (1204) a battery pack disassembly and assembly device moving device/slide rail, (1201) a vertically movable battery pack picking and placing transmission device, (1202) a vertically movable battery pack picking and placing transmission device moving slide rail/track, (1206) a battery replacement vehicle information ETC identification device, (1205) a battery replacement station battery replacement vehicle access control barrier gate, (17) a CAN weak current signal transmission line and a direct current strong current transmission line;
(13) the intelligent control subunit of the power change WCS/WMS control system is connected with ((11) an integrated micro-grid power change station MGCC intelligent control center, (110) a power change station energy storage battery bin unit, an electric automobile (1203) power change disassembling and assembling device, (1201) a vertically movable battery pack picking and placing and transferring device, (1206) a power change vehicle information ETC identification device, and (1205) a power change station power change vehicle access control barrier gate through (17) a CAN weak current signal transmission line;
(1201) the battery pack taking and placing transfer device capable of moving up and down unlocks (130135) a locking component of a battery pack assembly to be replaced (13013) through a battery pack locking component (12013), a battery pack to be replaced (130132) is grabbed, a full-power (130132) battery pack is placed on an electric automobile (1203) battery replacing dismounting and mounting device, (1201) the battery pack taking and placing transfer device capable of moving up and down locks the full-power (130132) battery pack on (130131) lower guard plate through the battery pack locking component (12013), (1201) the battery pack taking and placing transfer device capable of moving up and down sends completion information to an intelligent control subunit of a battery replacing WCS/WMS control system (13), (13) the intelligent control subunit of the battery replacing WCS/WMS control system sends a loading instruction to the electric automobile (1203) battery replacing dismounting and mounting device, and mounting device of the electric automobile (1203) moves to (130) a potential replacing position to mount and fix the full-power (13013) battery pack assembly to (13013) (12013) ) The mounting position of an auxiliary battery pack assembly of the electric automobile chassis;
meanwhile, (11029) the BMS electric control integrated board circuit module collects the collected old empty (130132) battery pack internal operation data through a charging and discharging interface/data acquisition interface (11027) and sends the collected old empty battery pack internal operation data to (11) an integrated micro-grid power exchange station MGCC intelligent control center; (130132) the internal operation data of the battery pack comprises (130132) current electric quantity, overcurrent information, overvoltage information, overheat information, and (130132) quick charging times recording information of the battery pack, (130132) service duration information of the battery pack, and (130132) discharging load overload times recording information of the battery pack, and the like;
the specific electricity changing operation flow is as follows: firstly, after a previous replacing vehicle (130) finishes replacing the potential, (13) an intelligent control subunit of a replacing WCS/WMS control system sends a release instruction to a replacing potential vehicle access control barrier gate of a replacing station (1205), (1205) the barrier gate is opened, the vehicle to be replaced enters the replacing station (130) to replace the potential, (1205) the barrier gate is closed, (1206) an information ETC identification device of the replacing vehicle identifies the information of the vehicle to be replaced and sends the information to the intelligent control subunit of the replacing WCS/WMS control system, (13) the intelligent control subunit of the replacing WCS/WMS control system and the intelligent control center of the integrated micro-grid replacing station MGCC (11) finish information exchange and verification of the replacing, the integrated micro-grid station MGCC intelligent control center sends a replacing instruction to the intelligent control subunit of the replacing WCS/WMS control system (13), and the intelligent control subunit of the replacing WCS/WMS control system synchronously runs (sends a disassembly instruction to the electric vehicle (13) (1203) The battery replacing and disassembling device sends an opening control box instruction to (1102) a separated single modular battery pack control box subset and sends a battery pack taking and placing instruction (130132) to (1201) a battery pack taking and placing transfer device which can move up and down, and further the electric automobile (1203) battery replacing and disassembling device completes the disassembling of the battery pack of (1301) an electric automobile (old) to-be-replaced battery (130132) and synchronously sends completing information to (13) a battery replacing WCS/WMS control system intelligent control subunit; at the moment (1102), the separated monomer modular battery pack control box subset opens the fully-charged (11026) control box inner drawer; thirdly, the battery replacing and disassembling device moves 1203 further to a region where the battery pack taking and placing and transferring device capable of moving up and down (1201) takes and places a battery pack (130132) to be replaced); fourthly (1201), the battery pack taking and placing transfer device capable of moving up and down grabs (11026) the battery pack which is fully charged (130132) in the drawer in the control box; further (1201) the portable group battery is got and is put the transfer device and snatch (1203) trade (130132) the battery package of waiting to trade on the dismouting device of electricity about (1201) movable group battery is got wherein substep is carried out: 1. (12013) the unlocking/locking device executes unlocking, (130132) the battery pack is separated from the lower guard plate (130131) to unlock, 2, (1201) the up-down movable battery pack taking and placing transmission device grabs (130132) the battery pack, further (1201) the up-down movable battery pack taking and placing transmission device places the grabbed full-charge (130132) battery pack on the electric automobile (1203) battery replacing and disassembling device, further (12013) the unlocking/locking device executes locking, (130132) the battery pack is locked on the lower guard plate (130131), fifth, the intelligent control subunit of the power replacing WCS/WMS control system further (13) opens the empty (1102) battery pack control box subset, (1201) the up-down movable battery pack taking and placing transmission device moves to the empty (130132) battery pack control box subset position, and places the empty (old) (130132) battery pack in the open empty (1102) control box, and sixthly, simultaneously (1203) loading a full-power (13013) battery pack assembly on a power-exchanging vehicle chassis to finish power exchanging, and simultaneously (13) recording and receiving the empty (old) (1102) monomer control box subset by a power-exchanging WCS/WMS control system intelligent control subunit. It should be noted that the above third step, fourth step, sixth step can be executed synchronously according to the need.
It should be noted that: (1201) the battery pack taking and placing transfer device capable of moving up and down is distributed with (12011/12012) two-in-two (left and right) independent battery pack taking, placing, dismounting and mounting devices (12011 and 12012) which are the same devices and work alternately in sequence, wherein the (12011) independent battery pack taking, placing, dismounting and mounting devices and the (12012) independent battery pack taking, placing, mounting and mounting devices respectively correspond to two areas of the energy storage battery bin of the (110) battery changing station which are symmetrically divided by taking the (1203) battery changing dismounting and mounting device as a central line, and when the (12011) independent battery pack taking, placing, mounting and mounting device takes (1203) an old empty battery pack on the battery changing and mounting device, (12012) the independent battery pack taking, placing, mounting and mounting device is responsible for fully placing the battery pack to the (1203) battery changing and mounting device; when (12012) the independent battery pack taking, placing, dismounting and mounting device takes (1203) the old empty battery pack on the battery replacing and mounting device, (12011) the independent battery pack taking, placing, mounting and mounting device is responsible for fully discharging the electric battery pack to (1203) the battery replacing and mounting device; (12011) The independent battery pack taking, placing, dismounting and mounting device and (12012) the independent battery pack taking, placing, mounting and mounting device alternate in sequence.
Example six:
(11) an electric energy distribution and scheduling scheme of an integrated micro-grid power conversion station is as follows: the specific operation modes with reference to fig. 1 and 2 are as follows:
the photovoltaic power generation system is used for converting solar energy into first electric energy and sending the first electric energy to the energy storage battery bin (110) through the integrated micro-grid power conversion station system (11), or sending the first electric energy to an electricity user side (61) or the integrated power conversion station distribution box (62) through the integrated micro-grid power conversion station system (11);
secondly, receiving second electric energy from the (41) external commercial power grid and sending the second electric energy to the (110) energy storage battery bin through the (11) integrated micro-grid power station changing system; or the electric energy is sent to the electricity user side (61) or the integrated power changing station distribution box (62) through the integrated micro-grid power changing station system (11);
thirdly, (110) the energy storage battery bin is used for storing the first electric energy and the second electric energy, and under appropriate conditions, such as power utilization peak periods, the (110) energy storage battery bin can also send the third electric energy stored by the energy storage battery bin to the (61) power utilization user side and the integrated power conversion station distribution box through the (12) power conversion station energy storage charging and discharging EMS intelligent control subunit;
(110) and the energy storage battery bin is used for receiving the first electric energy and the second electric energy sent by the integrated micro-grid power station changing system (11) and storing the first electric energy and the second electric energy into third electric energy.
First example of electric energy: referring to fig. 1, (51) a photovoltaic power generation panel is connected with a (52) direct current junction box, (52) the direct current junction box is connected with a (53) DC-DC boost module, (53) the DC-DC boost module is connected with a (15) photovoltaic power generation EMC intelligent control subunit, (15) the photovoltaic power generation EMC intelligent control subunit is connected with a (55) DC-AC inverter module, and (55) the DC-AC inverter module is connected with a (16) alternating current two-way distribution box EMS intelligent control subunit. (16) Alternating current double-circuit block terminal EMS intelligent control subunit connects and is connected the power supply with (61) power consumption user side, trades power station consumer alternating current block terminal with supply (62) integral type simultaneously and connects the power supply. On the other hand, (15) photovoltaic power generation EMC intelligent control subunit is connected with (50) No. 2 PCS single-circuit rectifier box, (50) No. 2 PCS single-circuit rectifier box is connected with (40) main circuit PCS rectifier box, (40) main circuit PCS rectifier box is connected with (12) power station energy storage charging and discharging EMS intelligent control subunit, and (12) power station energy storage charging and discharging EMS intelligent control subunit is connected with (110) power station energy storage battery bin unit. The operation mode is as follows: on one hand: (51) the photovoltaic power generation panel converts solar energy into electric energy and transmits the electric energy to a direct current junction box (52), the direct current junction box transmits the electric energy to a DC-DC boosting module (53), the DC-DC boosting module converts low-voltage direct current into high-voltage direct current and transmits the high-voltage direct current to a photovoltaic power generation EMC intelligent control subunit (15), the photovoltaic power generation EMC intelligent control subunit (15) converts the high-voltage direct current into high-voltage alternating current according to a control command of an integrated microgrid power conversion station MGCC intelligent control center (11) and transmits the high-voltage direct current to a DC-AC inverter module (55) as required, the DC-AC inverter module converts the high-voltage direct current into high-voltage alternating current and transmits the high-voltage alternating current to an alternating current dual-way EMS intelligent control subunit (16), and the alternating current dual-way EMS intelligent control subunit (16) transmits the high-voltage alternating current to an electricity utilization user side (61) as required and transmits the high-voltage alternating current to an electricity utilization equipment alternating current distribution box of the integrated power conversion station (62). On the other hand: (15) the photovoltaic power generation EMC intelligent control subunit transmits high-voltage direct current to (50) a No. 2 PCS single-circuit rectifying box according to control instructions of an integrated micro-grid power conversion station MGCC intelligent control center as required, (50) the No. 2 PCS single-circuit rectifying box adjusts the high-voltage direct current and transmits the adjusted high-voltage direct current to (40) a main circuit PCS rectifying box, (40) the main circuit PCS rectifying box transmits the high-voltage direct current to (12) a power conversion station energy storage charging and discharging EMS intelligent control subunit, and (12) the power conversion station energy storage charging and discharging EMS intelligent control subunit stores (charges) the high-voltage direct current in (110) a power conversion station energy storage battery bin unit.
Second power example: referring to fig. 1, (41) an external utility power grid is connected with (14) an intelligent control subunit of a power distribution system EMS, (14) the intelligent control subunit of the power distribution system EMS is connected with (42) an AC-DC module, (42) the AC-DC module is connected with (43) a No. 1 PCS single-circuit rectifying box, (43) the No. 1 PCS single-circuit rectifying box is connected with (40) a main circuit PCS rectifying box, (40) the main circuit PCS rectifying box is connected with (12) an energy storage charging and discharging EMS intelligent control subunit of a power conversion station, and (12) the energy storage charging and discharging EMS intelligent control subunit of the power conversion station is connected with (110) an energy storage battery bin unit of the power conversion station. On the other hand, (41) an external commercial power grid is connected with (16) an intelligent control subunit of an alternating current double-circuit distribution box EMS, (16) the intelligent control subunit of the alternating current double-circuit distribution box EMS is connected with (61) an electricity user side for power supply, and is connected with an alternating current distribution box of integrated electricity changing station electricity utilization equipment for power supply (62) for power supply; the operation mode is as follows: on one hand, (41) an external commercial power grid transmits high-voltage alternating current to (14) an intelligent power distribution system EMS control subunit, (14) the intelligent power distribution system EMS control subunit transmits the high-voltage alternating current to (42) an AC-DC module according to (11) an integrated micro power grid power conversion station MGCC intelligent control center control instruction, (42) the AC-DC module converts the high-voltage alternating current into high-voltage direct current and transmits the high-voltage direct current to (43) a No. 1 PCS single-circuit rectifying box, (43) the No. 1 PCS single-circuit rectifying box adjusts the high-voltage direct current and transmits the high-voltage direct current to (40) a main circuit PCS rectifying box, (40) the main circuit PCS rectifying box transmits the high-voltage direct current to (12) a power conversion station energy storage charging and discharging EMS intelligent control subunit, and (12) the power conversion station energy storage charging and discharging EMS intelligent control subunit stores (charges) the high-voltage direct current in (110) a power conversion station energy storage battery bin unit. On the other hand, (41) outside commercial power electric wire netting transmits high-voltage alternating current to (16) alternating current double-circuit block terminal EMS intelligent control subunit, (16) alternating current double-circuit block terminal EMS intelligent control subunit transmits high-voltage alternating current to (61) power consumption user side as required, trades power station consumer alternating current block terminal with supply (62) integral type with high-voltage alternating current transmission simultaneously.
The third power example: referring to fig. 1, (110) a power conversion station energy storage battery bin unit is connected with (12) a power conversion station energy storage charging and discharging EMS intelligent control subunit, (12) the power conversion station energy storage charging and discharging EMS intelligent control subunit is connected with (40) a main circuit PCS rectifier box, (40) the main circuit PCS rectifier box is connected with (55) a DC-AC inverter module, and (55) the DC-AC inverter module is connected with (16) an alternating current double-circuit power distribution box EMS intelligent control subunit; (16) the AC double-circuit distribution box EMS intelligent control subunit is connected with the electricity user side (61) for power supply, and is also connected with the AC distribution box of the integrated electricity changing station electricity supply equipment (62) for power supply; the operation mode is as follows: (110) the energy storage battery bin unit of the power conversion station transmits high-voltage direct current to (12) an energy storage charging and discharging EMS intelligent control subunit of the power conversion station, (12) the energy storage charging and discharging EMS intelligent control subunit of the power conversion station transmits the high-voltage direct current to (40) a main circuit PCS rectifier box according to (11) an integrated micro-grid power conversion station MGCC intelligent control center control command as required, (40) the main circuit PCS rectifier box transmits the high-voltage direct current to (55) a DC-AC inverter module, (55) the DC-AC inverter module converts the high-voltage direct current into high-voltage alternating current and transmits the high-voltage alternating current to (16) an alternating current double-circuit power distribution box EMS intelligent control subunit, (16) the alternating current double-circuit power distribution box EMS intelligent control subunit transmits the high-voltage alternating current to (61) an electricity user side according to requirement, simultaneously transmitting the high-voltage alternating current to an alternating current distribution box of electric equipment for the integrated power conversion station; it should be noted that the ac distribution box for the electric equipment of the integrated power conversion station (62) is responsible for supplying the electric power demand of all the electric equipment of the integrated power conversion station.
Continuing with reference to FIG. 2 for further optimization of the mode of operation: (11) the integrated micro-grid power conversion station system is used for controlling the photovoltaic power generation master control, the charging and discharging of the energy storage unit, the power supply of the external commercial power grid (41), the alternating current double-circuit/multi-circuit intelligent control distribution box (16) and the power conversion operation state of the power conversion station;
(11) in the embodiment of the integrated microgrid power conversion station, (15) the photovoltaic power generation EMC intelligent control subunit judges whether the current sunshine time period exists or not, if the sunshine time period does not exist, the judgment is finished, if the sunshine time period exists, the photovoltaic power generation EMC intelligent control subunit further judges whether the current electricity utilization price peak section exists or not, and if the current electricity utilization price peak section exists, the photovoltaic power generation EMC intelligent control subunit supplies power to the electricity utilization user side (61); if the current electricity price is not the peak section of electricity price, further judging whether the energy storage battery bin unit of the electricity changing station needs to be charged or not (110), if the energy storage battery bin unit of the electricity changing station does not need to be charged (110), supplying power to the electricity utilization user side (61) by photovoltaic power generation, and if the energy storage battery bin unit of the electricity changing station needs to be charged (110), charging the energy storage battery bin unit of the electricity changing station (110) by the photovoltaic power generation;
(41) the intelligent control subunit of the external commercial power grid EMS judges whether the current power utilization price peak section exists or not, if the current power utilization price peak section does not exist, the intelligent control subunit further judges whether the current power utilization price peak section exists or not, if the current power utilization price peak section exists, the intelligent control subunit further judges whether the power station energy storage battery bin unit needs to be charged or not (110), if the power station energy storage battery bin unit does not need to be charged (110), the external commercial power grid (41) supplies power to the power utilization user side (61), and if the power station energy storage battery bin unit needs to be charged (110), the external commercial power grid (41) charges the power station energy storage battery bin unit (110); on the other hand, (41) the external electric supply network EMS intelligent control subunit judges whether to use the peak section of the electricity price at present, if so, the intelligent control subunit of the electricity-changing WCS/WMS control system (13) further judges whether an electricity-changing vehicle needs to change the electricity, if so, a battery pack required by the electricity-changing vehicle (130132) is reserved as the electricity-changing of the vehicle to be changed; if no vehicle to be replaced needs to be replaced, whether the electric quantity of the energy storage battery bin unit of the current (110) replacement station is sufficient is further judged, and if the electric quantity of the energy storage battery bin unit of the current (110) replacement station is sufficient, the energy storage battery bin unit of the current (110) replacement station supplies power to the electricity utilization user side (61); secondly, if the unit electric quantity of the energy storage battery bin of the current (110) power changing station is insufficient, further supplying power to the (61) power utilization user side by using (41) an external commercial power grid; when the photovoltaic system is not suitable for operation: if (41) the electricity price of an external commercial power grid is at a low level and/or the electricity conversion requirement is large, the integrated micro-grid electricity conversion station system sends and stores (110) second electric energy sent by the grid to an energy storage battery bin, and simultaneously supplies power to an electricity user side (61) and an integrated electricity conversion station electric equipment alternating current distribution box; and if the electricity price of the power grid is high and/or the electricity changing requirement is low, (11) the integrated micro-power grid electricity changing station system receives (110) the third electric energy sent by the energy storage battery bin and sends the third electric energy to the electricity user side (61) and the integrated electricity changing station electric equipment alternating current distribution box (62).
On the other hand, with continued reference to fig. 1, 2, and 11, the integrated microgrid power conversion station system further includes a master control system, a master monitoring platform, an external communication master interface, and a manual control platform; the master control system is used for carrying out centralized control on the integrated micro-grid power conversion station (11), and managers can also distribute and schedule electric energy among the photovoltaic power generation system, the external commercial power grid (41) and the energy storage battery bin (110) through the manual control platform under special conditions; the main monitoring platform is used for monitoring the running states of a photovoltaic power generation system, (41) an external commercial power grid power distribution system, (110) an energy storage battery bin and a power conversion system, a manager can monitor the running states by installing monitoring equipment such as a camera, a sensor and an alarm device in the station, and the manager can be informed to maintain the running states in time when the equipment in the station is abnormal; the external communication main interface is used for connecting a photovoltaic power generation system, (41) an external commercial power grid power distribution system, and (110) communication between the energy storage battery bin and the battery replacement system; the manual control platform is used for information interaction between a user and the master control system, and can perform unified operation and management on each system in the integrated microgrid power exchanging station (11) through a human-computer interaction interface under special conditions; in summary, the integrated microgrid electricity exchanging station (11) integrates a photovoltaic power generation system, an external commercial power grid power supply system (41), an energy storage charging and discharging system and an electricity exchanging station system, so that reasonable configuration and flexible switching of electric energy among photovoltaic power, a power grid, energy storage and electric vehicles are realized, an economic adjusting means of power grid peak-valley price difference can be responded, peak clipping and valley filling are realized by utilizing photovoltaic power generation and energy storage batteries, and the popularization cost of the electricity exchanging station is further reduced;
in all the above, the battery pack or battery pack generally refers to pack integration in which battery cells form a battery pack or battery pack in a series-parallel connection manner; in all the above, n represents an Arabic number extending from 1 to infinity infinitely.
The embodiments of the invention are described in a progressive mode, the emphasis of each embodiment is different from that of other embodiments, and the same and similar parts among the embodiments are referred to each other; it should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. Although the invention has been described above with reference to various embodiments, it should be understood that many changes and modifications may be made without departing from the scope of the invention; it is therefore intended that the foregoing detailed description be regarded as illustrative rather than limiting, and that it be understood that it is the following claims, including all equivalents, that are intended to define the spirit and scope of this invention; the above examples are to be construed as merely illustrative, and not limitative of the remainder of the disclosure in any way whatsoever; after reading the description of the invention, the skilled person can make various changes or modifications to the invention, and these equivalent changes and modifications also fall into the scope of the invention defined by the claims; the above embodiments are provided to further explain the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the scope of the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The double-energy main and auxiliary double-battery-pack electric automobile double-battery system architecture is characterized by comprising an electric automobile VCU/BMS master control unit, a main battery pack energy unit, an auxiliary battery pack energy unit assembly, an electric automobile power unit motor part, an electric automobile charging unit, a main battery pack electric signal interface and an auxiliary battery pack electric signal interface.
2. The battery pack energy unit assembly of claim 1, wherein the secondary battery pack energy unit assembly comprises a secondary battery pack/battery pack assembly lower guard plate, a secondary battery pack/battery pack, a secondary battery pack fixed to an electric vehicle chassis locking component (bottom-up), a secondary battery pack fixed to a lower guard plate locking component (top-down), a secondary battery pack and electric vehicle chassis docking bidirectional guiding positioning block/battery replacement secondary battery pack pick-and-place on a battery pack control box docking guiding positioning block (both are the same component), a secondary battery pack strong current interface, a secondary battery pack weak current signal interface, and a secondary battery pack liquid cooling pipe interface.
3. The system of claim 1, wherein the dual battery system architecture comprises: the system comprises a main battery pack, an auxiliary battery pack, independent liquid cooling device units, independent electric control BMS units, a central control cooperative control unit, a battery replacement operation manual switch, a charging unit and the like, wherein the independent liquid cooling device units, the independent electric control BMS units, the central control cooperative control unit, the battery replacement operation manual switch and the charging unit are respectively arranged on the electric automobile and the auxiliary battery pack;
the main battery pack of the double-battery system can be distributed at any position of the electric automobile according to the design requirements of automobile manufacturers, is fixed and cannot be replaced;
the auxiliary battery pack (battery pack) is positioned in the center of the front wheel and the rear wheel of the electric automobile and is of a replaceable structure;
the auxiliary battery packs are uniformly suitable for the sizes of the auxiliary battery packs of all electric vehicles (the volumes of the middle positions of front and rear wheels do not occupy the space of passengers in the vehicle), the use standards of all the electric vehicle auxiliary battery packs are unified, the auxiliary battery packs are provided with the scalable power supply management module, and on the basis, all electric vehicle manufacturers can adjust the sizes, the volumes, the shapes, the installation positions and the like of the main battery packs according to the sizes of different vehicle types.
4. According to claim 1, the VCU/BMS total control unit battery control system of the electric vehicle is composed of a total controller + a main battery pack controller + a sub-battery pack controller (1 + 2).
5. The dual battery system electric vehicle center control display user interaction unit according to any one of claims 1-4, prompting a user of the primary battery pack and the secondary battery pack power respectively;
two charging methods are available during charging of the double-battery system: the charging method comprises the following steps of charging a main battery pack independently and simultaneously and respectively to a main battery pack and an auxiliary battery pack, wherein the main battery pack and the auxiliary battery pack are isolated from each other during charging, and the charging mode is controlled by an electric vehicle control system and a charging module (a control button is arranged at a charging port of the electric vehicle and is selectively operated by an electric vehicle user as required during charging);
when the double-battery system is used for driving the electric automobile to run, the main battery pack in the electric automobile supplies electric energy to the electric automobile independently to drive the electric automobile to run;
the electric automobile manufacturer with the double battery system designs and sets the electric energy capacity of the main battery pack by self, the electric energy capacity of the main battery pack is between (1 kw.h and 100 kw.h), and meanwhile, the electric energy of the main battery pack can meet the requirement that the continuous driving endurance mileage of the electric automobile is between (1KM and 100 KM).
6. The electric vehicle battery pack is provided with the collision automatic ejecting device, when the electric vehicle collides, the auxiliary battery pack is automatically disconnected from the vehicle body connecting structure, and secondary damage to the vehicle body and personnel in the vehicle caused by burning, explosion and the like of the battery pack after the collision is prevented;
convenient trade electric auxiliary battery package uses split type fastening expansion bolts to be fixed in the electric automobile chassis, and the later stage is according to bolt life and the convenient change of number of times.
7. According to any one of claims 1 to 4, a non-contact Radio Frequency Identification (RFID) NFC chip is arranged in the secondary battery pack and stores information such as battery pack codes and identification codes;
an encrypted communication protocol is arranged in the auxiliary battery pack communication interface and the corresponding communication connection interface of the electric automobile, when the communication protocol is verified to be failed, the auxiliary battery pack power-on interface and the corresponding power-on interface of the electric automobile are automatically cut off, and the auxiliary battery pack cannot supply power to the automobile;
the double-battery system frame of the electric automobile with the double-battery system is provided with a remote data monitoring platform (MGCC monitoring and scheduling management unit comprises a central control system), a communication chip (comprising GPS, Beidou communication positioning, GPRS, 3rd-Generation, 3G, 4th Generation mobile communication technology, 5th Generation mobile networks, 5th Generation wireless systems, 5th-Generation and other cellular mobile communication technologies) is arranged in each auxiliary battery pack, the network connection system uploads real-time battery pack use information to a data center, and the data center monitors the safety of each battery pack; meanwhile, the data center can position the position of the auxiliary battery pack by the method, so that the safety of the battery pack is ensured;
the auxiliary battery pack is internally provided with an anti-disassembly alarm device, the auxiliary battery pack needs to be reported by a data system of a maintenance center before being normally maintained and disassembled, and if the auxiliary battery pack is not reported by the system and maintenance information is disassembled, the data center automatically triggers an alarm.
8. According to any one of claims 1 to 4, the auxiliary battery pack is separately designed and provided with a heat dissipation system (including a liquid cooling mode, an air cooling heat dissipation mode, a refrigerant heat dissipation mode and the like);
the cooling liquid interface of the auxiliary battery liquid-coated cooling heat dissipation device adopts a bi-pass interlocking structure, the auxiliary battery liquid-coated cooling liquid interface is communicated with the cooling liquid interface inside the electric automobile when being connected, and the interfaces are locked when being separated, so that the cooling liquid is prevented from leaking when the cooling liquid interfaces are separated;
the auxiliary battery PACK PACK independent liquid cooling heat dissipation system assembly is set in a manner that a cooling liquid is automatically recovered by an electric automobile internal cooling device when the electric automobile is shut down, when the electric automobile enters a battery replacement station, the electric automobile is shut down and shut down firstly, and when the electric automobile is shut down, the cooling liquid is automatically recovered by the electric automobile internal cooling device;
when the speed of the auxiliary battery PACK PACK independent liquid cooling heat dissipation system assembly is lower than a certain speed, the cooling liquid can be automatically recovered;
when the electric automobile is started and the vehicle speed reaches a certain speed, the liquid cooling system is started again when the auxiliary battery PACK starts to supply power at a high power.
9. The method of any of claims 1-3, wherein the dual battery system is powered by: the main battery pack and the auxiliary battery pack are respectively provided with a set of battery management module at the same time, the battery management modules can detect the electric quantity of the corresponding battery packs, meanwhile, the two sets of battery packs are simultaneously connected to a vehicle main controller in a series-parallel connection mode, and the main controller controls the output sizes of the power, the current and the electric quantity of the main battery pack and the auxiliary battery pack according to the running condition of the vehicle and the system setting mode;
wherein, dual battery system electric automobile is provided with three kinds of different driving modes: i, a standard driving mode; II, a high-performance sports driving mode; III, an energy-saving driving mode (which can be adjusted through gears);
the three different driving modes are mainly characterized in that the auxiliary battery pack charges the main battery pack in a soc threshold value I in a high-performance mode, the auxiliary battery pack charges the main battery pack in a full period, in a standard mode, the auxiliary battery pack charges the main battery pack according to the soc threshold value II, and in an energy-saving mode, the auxiliary battery pack does not charge the main battery pack;
wherein, I, three kinds of different electric quantity control modes of standard driving mode include: the intelligent control mode, the active output mode of the main battery pack and the active output mode of the auxiliary battery pack (which can be adjusted by a knob or a button) are adopted;
the output power, the current and the electric quantity output size (measured by percentage% symbols and Arabic numerals) of each of the main battery pack and the auxiliary battery pack are intelligently adjusted by setting a threshold value by SOC (state of charge) (the SOC threshold value can be adjusted in a central control interactive system);
wherein, the (r) intelligent control mode: (the secondary battery pack charges the primary battery pack according to the soc threshold);
when the soc of the main battery pack is greater than 80%, the output of the main battery pack is 70%, and the output of the auxiliary battery pack is 30%;
the soc of the main battery pack is more than 60 percent and less than 80 percent, the output of the main battery pack is 50 percent, and the output of the auxiliary battery pack is 50 percent;
the soc of the main battery pack is more than 45% and less than 60%, the output of the main battery pack is 30%, and the output of the auxiliary battery pack is 70%;
the soc of the main battery pack is lower than 40%, the output of the main battery pack is stopped, and the output of the auxiliary battery pack is 100%;
the master battery pack soc is lower than 30%, and the auxiliary battery pack charges the master battery pack;
the active output mode of the master battery pack is as follows: the soc of the main battery pack is greater than 80%, the output of the main battery pack is 100%, and the output of the auxiliary battery pack is not output;
the soc of the main battery pack is more than 40 percent and less than 80 percent, the output of the main battery pack is 70 percent, and the output of the auxiliary battery pack is 30 percent;
the soc of the main battery pack is more than 20 percent and lower than 40 percent, the output of the main battery pack is 30 percent, and the output of the auxiliary battery pack is 70 percent;
the soc of the main battery pack is lower than 20%, the output of the main battery pack is stopped, and the output of the auxiliary battery pack is 100%;
the soc of the main battery pack is lower than 10%, and the auxiliary battery pack charges the main battery pack;
and the active output mode of the auxiliary battery pack is as follows: the soc of the main battery pack is more than 70%, the output of the main battery pack is 30%, and the output of the auxiliary battery pack is 70%;
the main battery pack (soc is more than 50% and less than 70%, the main battery pack stops outputting, the auxiliary battery pack outputs 100%, and the auxiliary battery pack charges the main battery pack at the same time;
II, high-performance sports driving mode: the auxiliary battery pack is charged to the main battery pack in a priority mode in the whole period, the main battery pack automatically adjusts the output power to complement the requirements of the total power, the current and the electric quantity according to 100 percent of the output power, the current and the electric quantity, and the auxiliary battery pack automatically adjusts the output power to complement the requirements of the total power, the current and the electric quantity along with the output power, the current and the electric quantity of the main battery pack (the main battery pack is used for assisting the output power, the current and the electric quantity when the output power, the current and the electric quantity of the main battery pack are insufficient);
III, an energy-saving driving mode: (the sub-battery pack does not supply power to the main battery pack);
the soc of the main battery pack is greater than 70%, the output of the main battery pack is 30%, and the output of the auxiliary battery pack is 70%;
the master battery pack soc is lower than 70%, the auxiliary battery pack outputs power, and the master battery pack is auxiliary output power (when the auxiliary battery pack is insufficient in power, the master battery pack outputs power in an auxiliary mode).
10. The battery pack or pack of any of claims 1-9, wherein the battery pack or pack broadly refers to a pack or pack integration of battery cells assembled from battery cells.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114274814A (en) * | 2021-12-29 | 2022-04-05 | 江西众一智慧科技有限公司 | Mobile energy storage intelligent range-extending charging method and system |
| CN116872792A (en) * | 2023-08-22 | 2023-10-13 | 杭州鸿途智慧能源技术有限公司 | Hybrid power control system based on quick replacement energy supplementing power battery |
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2020
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114274814A (en) * | 2021-12-29 | 2022-04-05 | 江西众一智慧科技有限公司 | Mobile energy storage intelligent range-extending charging method and system |
| CN114274814B (en) * | 2021-12-29 | 2023-10-13 | 江西众一智慧科技有限公司 | Mobile energy storage intelligent range-extending charging method and system |
| CN116872792A (en) * | 2023-08-22 | 2023-10-13 | 杭州鸿途智慧能源技术有限公司 | Hybrid power control system based on quick replacement energy supplementing power battery |
| CN116872792B (en) * | 2023-08-22 | 2024-04-02 | 杭州鸿途智慧能源技术有限公司 | Hybrid power control system based on quick replacement energy supplementing power battery |
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