CN111497670B - Charging device, system and method - Google Patents

Charging device, system and method Download PDF

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Publication number
CN111497670B
CN111497670B CN202010357095.8A CN202010357095A CN111497670B CN 111497670 B CN111497670 B CN 111497670B CN 202010357095 A CN202010357095 A CN 202010357095A CN 111497670 B CN111497670 B CN 111497670B
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Prior art keywords
power
equipment
charged
module
control unit
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CN202010357095.8A
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CN111497670A (en
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茹永刚
庞浩
刘强
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Xian Linchr New Energy Technology Co Ltd
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Xi'an Telingchong New Energy Technology Co ltd
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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
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/63—Monitoring or controlling charging stations in response to network capacity
    • 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
    • B60L53/20—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 characterised by converters located in the vehicle
    • 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
    • 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
    • B60L53/52—Wind-driven generators
    • 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
    • B60L53/53—Batteries
    • 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
    • B60L53/60—Monitoring or controlling charging stations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

Abstract

The application provides a charging device, a charging system and a charging method, and relates to the technical field of charging. The charging device comprises an electric storage equipment group, a first DC/DC module, a power distribution unit and a control unit, wherein the control unit is electrically connected with the first DC/DC module and the power distribution unit respectively, and the electric storage equipment group, the first DC/DC module and the power distribution unit are electrically connected. The power distribution unit is used for being connected with the equipment to be charged, and the control unit is used for controlling the power distribution unit to charge the equipment to be charged by utilizing the electric storage equipment group. The charging device, the system and the method have the advantages of reducing energy loss and further improving charging efficiency.

Description

Charging device, system and method
Technical Field
The present application relates to the field of charging technologies, and in particular, to a charging device, a charging system, and a charging method.
Background
Along with the development of the electric automobile industry, electric automobile fills electric pile and has also received people's attention gradually.
At present, an electric automobile charging pile generally comprises a battery pack so as to achieve the function of peak clipping and valley filling of a power grid. Namely, the battery pack is charged when the power grid is in a low power consumption valley, and the battery pack is used for discharging when the power grid is in a high power consumption peak.
However, when the battery pack is used to supply power to the electric vehicle, the electric energy stored in the battery pack is generally converted from low voltage to high voltage through the DC/DC module and is output to the DC bus, then the DC/AC module is used to convert the DC power into AC power and output the AC power to the AC bus, and finally the AC/DC module is used to convert the AC power on the AC bus into DC power to charge the electric vehicle. Because when charging electric automobile, need pass through cubic power conversion, and when carrying out power conversion at every turn, must lead to the fact the loss of energy, lead to when the group battery that utilizes charges for electric automobile, its charge efficiency is lower.
Disclosure of Invention
The present application is directed to a charging device, a charging system, and a charging method, for solving the problem of low charging efficiency when a battery pack is used to charge an electric vehicle in the prior art.
In order to achieve the above purpose, the embodiments of the present application employ the following technical solutions:
in a first aspect, an embodiment of the present application provides a charging apparatus, where the charging apparatus includes an electrical storage device group, a first DC/DC module, a power distribution unit, and a control unit, where the control unit is electrically connected to the first DC/DC module and the power distribution unit, respectively, and the electrical storage device group, the first DC/DC module, and the power distribution unit are electrically connected; wherein the content of the first and second substances,
the power distribution unit is used for connecting equipment to be charged;
the control unit is used for controlling the power distribution unit to charge the equipment to be charged by utilizing the electric storage equipment group.
In a second aspect, an embodiment of the present application provides a charging system, where the charging system includes at least two charging devices, and the charging devices are electrically connected to each other.
In a third aspect, the present embodiment further provides a charging method applied to a control unit of a charging apparatus, where the charging apparatus includes a power storage device group, a first DC/DC module, a power distribution unit, a direct current bus, a bus power distribution unit, and a first AC/DC module, the first AC/DC module is connected to a power grid, the control unit is electrically connected to the first DC/DC module, the power distribution unit, the direct current bus, the bus power distribution unit, and the first AC/DC module, respectively, the power storage device group, the first DC/DC module, and the power distribution unit module are electrically connected, the direct current bus is electrically connected to the bus power distribution unit, the first AC/DC module, respectively, and the bus power distribution unit is further electrically connected to the first DC/DC module, the method comprises the following steps:
when the power distribution unit is connected with equipment to be charged and is in a power utilization peak period, judging whether the output power of the electric storage equipment group is smaller than the required power of the equipment to be charged;
if not, controlling the electric power storage equipment group to supply power to the equipment to be charged;
if so, controlling the first AC/DC module to work, and supplying power to the equipment to be charged by using the electric storage equipment group and the power grid;
when the power distribution unit is connected with equipment to be charged and is in a power utilization valley period, judging whether the output power of the power grid is smaller than the required power of the equipment to be charged;
if not, controlling the power grid to supply power to the equipment to be charged;
and if so, controlling the power grid and the electric storage equipment group to supply power to the equipment to be charged.
Compared with the prior art, the method has the following beneficial effects:
the application provides a charging device, a system and a method, wherein the charging device comprises an electric storage equipment group, a first DC/DC module, a power distribution unit and a control unit, the control unit is electrically connected with the first DC/DC module and the power distribution unit respectively, and the electric storage equipment group, the first DC/DC module and the power distribution unit are electrically connected. The power distribution unit is used for being connected with the equipment to be charged, and the control unit is used for controlling the power distribution unit to charge the equipment to be charged by utilizing the electric storage equipment group. Because the charging device provided by the application only needs to perform power conversion once, and then the charging of the equipment to be charged is realized by using the power distribution unit, the times of power conversion are reduced, the energy loss is reduced, and the charging efficiency is further improved.
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and it will be apparent to those skilled in the art that other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a block diagram of a charging device according to an embodiment of the present disclosure.
Fig. 2 is a schematic block diagram of another charging device according to an embodiment of the present disclosure.
Fig. 3 is a schematic connection diagram of a first DC/DC module and a power distribution unit according to an embodiment of the present disclosure.
Fig. 4 is a block diagram of a charging system according to an embodiment of the present disclosure.
Fig. 5 is a flowchart of a charging method according to an embodiment of the present disclosure.
Fig. 6 is another flowchart of a charging method according to an embodiment of the present disclosure.
In the figure: 200-a charging device; 210-a control unit; 220-a group of electrical storage devices; 230-a first DC/DC module; 240-a power distribution unit; 250-a direct current bus; 260-a first AC/DC module; 270-an energy generation device; 271-a light energy generating device; 272-a second DC/DC module; 273-wind power generation equipment; 274-a second AC/DC module; 280-bidirectional power distribution unit.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally found in use of products of the application, and are used only for convenience in describing the present application and for simplification of description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application.
In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
First embodiment
As described in the background of the invention, a conventional charging post for an electric vehicle generally includes a battery pack to perform peak clipping and valley filling functions on a power grid.
At present, when a battery pack is used to supply power to an electric vehicle, the electric energy stored in the battery pack is generally converted from a small voltage to a large voltage through a DC/DC module and is output to a direct current bus, then the direct current is converted into an alternating current through the DC/AC module and is output to an alternating current bus, and finally the alternating current is converted into a direct current through the alternating current bus by the AC/DC module so as to charge the electric vehicle. In the process, the energy loss is large and the charging efficiency is low due to the fact that the number of times of power conversion is large.
In view of this, the present application provides a charging device, which utilizes fewer power conversion times to achieve the purpose of improving charging efficiency.
The charging device is exemplified as follows:
referring to fig. 1 and 2, the charging apparatus 200 includes an electrical storage device group 220, a first DC/DC module 230, a power distribution unit 240 and a control unit 210, wherein the control unit 210 is electrically connected to the first DC/DC module 230 and the power distribution unit 240 respectively, and the electrical storage device group 220, the first DC/DC module 230 and the power distribution unit 240 are electrically connected.
The power distribution unit 240 is configured to connect to a device to be charged, and the control unit 210 is configured to control the power distribution unit 240 to charge the device to be charged by using the electrical storage device group 220.
It is understood that the power stored in the electric storage device group 220 is a direct current power, and the power required by the device to be charged is also a direct current power, so that when the device to be charged needs to be charged, the control unit 210 can control the first DC/DC module 230 to operate, convert the power voltage stored in the electric storage device group 220 into a required voltage, and then charge the device to be charged by using the power distribution unit 240. Through this implementation, when utilizing power storage device group 220 to charge for waiting to charge equipment, only need pass through the power conversion of first DC/DC module 230, compare with prior art, it can reduce twice power conversion for the energy loss who causes in the power conversion process reduces, and then has promoted charge efficiency.
As an alternative implementation manner of the present application, the storage device set 220 is a stepped battery set, wherein a stepped battery means that when the battery reaches the original design life when being applied to other products, and is reused in the charging device 200, for example, a storage battery on a certain automobile, if it is specified that the storage battery can only be used for 5 years at most on the automobile, the storage battery needs to be replaced with a new storage battery after being used for 5 years. However, the replaced storage battery can be actually used and charged and discharged, and therefore, the storage battery can be applied to the charging device 200 provided in the present application. Also, a step battery pack is a combination including a plurality of step batteries, for example, a step battery pack includes 5 step batteries.
In using the echelon battery, can realize that the echelon group battery is not disassembled, need not to match the reorganization work, save echelon battery use cost and disassemble the safety problem of in-process. For example, if a battery eliminated from an automobile is used as the stepped battery, the charging apparatus 200 according to the present application can directly connect a plurality of stepped batteries as the power storage device group 220 without disassembling or reassembling the stepped batteries.
It can be understood that the first DC/DC module 230 is a bidirectional DC/DC module, that is, the control unit 210 can control the first DC/DC module 230 to operate in the forward direction, so that it can convert the large voltage into the required voltage of the electrical storage device group 220, and further charge the electrical storage device group 220; and the control unit 210 may also control the first DC/DC module 230 to operate reversely so that it can convert the output voltage of the electricity storage device group 220 into a large voltage. For example, when the electrical storage device group 220 needs to be used to charge the device to be charged, the control unit 210 controls the first DC/DC module 230 to convert the output voltage of the electrical storage device group 220 into the required voltage of the device to be charged, so as to achieve the purpose of charging the electrical storage device group 220.
Also, one or more stepped batteries may be included in the power storage device group 220, and when a plurality of stepped batteries are included in the power storage device group 220, the number of the first DC/DC modules 230 is also plural, that is, one stepped battery is electrically connected to one first DC/DC module 230. And the power distribution unit 240 is electrically connected to each of the first DC/DC modules 230 to charge the device to be charged by calling the electric energy of the plurality of stepped batteries and match the required power of the device to be charged. For example, if the number of the echelon batteries is 5, the maximum output power of each echelon battery is 60W, and the required power of the device to be charged is 250W, the power distribution unit 240 may distribute the output power of each first DC/DC module 230 to 50W, or 4 of the first DC/DC modules 230 may have an output power of 60W, and the output power of another first DC/DC module 230 may have an output power of 10W, so as to charge the device to be charged according to the required power of the device to be charged.
Also, when the power storage device group 220 includes a plurality of stepped cells, the first DC/DC module 230 employs an isolation bidirectional DC/DC module, which blocks the influence of insulation detection between each group of cells. In actual use, the echelon batteries of the power storage device group 220 are relatively independent, and even if one or more of the echelon batteries fails, the rest batteries can be normally used.
For example, the number of the echelon batteries in the electrical storage device group 220 is 5, and when any 2 of the echelon batteries has a fault, the control unit 210 will continue to control the other 3 echelon batteries to operate, so that the normal use of the electrical storage device group 220 will not be affected.
Meanwhile, the device to be charged is an automobile, the power distribution unit 240 adopts the unidirectional power distribution unit 240, namely, in the charging process, the power distribution unit 240 can only input electric energy into the automobile and cannot output the electric energy from the automobile, and the phenomenon of reverse charging in the charging process is prevented.
It should be noted that, the number of the unidirectional power distribution units 240 is not limited in the present application, for example, there may be one unidirectional power distribution unit 240 or a plurality of unidirectional power distribution units 240, and for example, the number of the unidirectional power distribution units 240 may be 1 or 4. Meanwhile, each unidirectional power distribution unit 240 is connected to all the stepped batteries.
The unidirectional power distribution unit 240 is configured to determine the output power according to the remaining power of each echelon battery, for example, the number of the echelon batteries is 5, and the remaining power of the echelon batteries is not equal, and if a certain device to be charged needs to be charged at this time and the required power of the device to be charged is 500W, the unidirectional power distribution unit 240 controls the echelon battery with a large remaining power to output a large power, and the echelon battery with a small remaining power to output a small power.
As an optional implementation manner of the present application, the charging device 200 further includes a direct current bus 250, a first AC/DC module 260, and a bus power distribution unit, where the first AC/DC module 260 is connected to a power grid, the direct current bus 250 is electrically connected to the first AC/DC module 260 and the bus power distribution unit, respectively, and the bus power distribution unit is electrically connected to the first DC/DC module. On the one hand, the device to be charged can be charged via the power grid, and on the other hand, the group of electrical storage devices 220 can also be charged via the power grid. The bus power distribution unit is a bidirectional power distribution unit 280 shown in the figure.
It should be noted that, in the present application, a power supply priority is set, when the power consumption peak period is reached, the power supply priority of the electrical storage device group 220 is higher than the power supply priority of the power grid, and at this time, when the control unit 210 determines that the output power of the electrical storage device group 220 is greater than or equal to the required power of the device to be charged, the electrical storage device group 220 is controlled to supply power to the device to be charged, that is, at this time, the device to be charged does not need to be charged by the power grid. Moreover, when the output power of the electric storage device group 220 is greater than the required power of the device to be charged, the electric storage device group 220 can supply power to the device to be charged and also can transfer redundant electric quantity to the power grid, so as to supply power to the power grid.
When the control unit 210 determines that the output power of the electrical storage device group 220 is smaller than the required power of the device to be charged, it means that the charging requirement of the device to be charged cannot be met if only the electrical storage device group 220 is used to charge the device to be charged, so the control unit 210 controls the first AC/DC module 260 to operate to supply power to the device to be charged simultaneously with the power grid by using the electrical storage device group 220.
When the power consumption is in the valley period, the power supply priority of the power storage device group 220 is lower than that of the power grid. At this time, when the control unit 210 determines that the output power of the power grid is greater than or equal to the required power of the device to be charged, the power grid is controlled to supply power to the device to be charged, that is, the device to be charged does not need to be charged by the power grid at this time. And, when the output power of the power grid is greater than the required power of the device to be charged, the power grid can simultaneously charge the power storage device group 220 while supplying power to the device to be charged.
It should be noted that, the peak period of power consumption refers to a time period when more users use power simultaneously, and at this time, the load of the power grid is large and the price of power is high; the electricity consumption valley period refers to a time period when fewer users use electricity at the same time, and at the time, the load of a power grid is smaller and the electricity price is lower. As one implementation, the peak electricity consumption period and the trough electricity consumption period may be determined by time, for example, 6 to 10 am, 6 pm to 10 pm are both peak electricity consumption periods, and the rest of the time is the trough electricity consumption period.
In order to achieve the peak clipping and valley filling functions, the control unit 210 generally charges the electric storage device group 220 when the power grid is in the low valley period, and charges the electric storage device group 220 for the device to be charged when the power grid is in the peak period. In the electricity consumption valley period, the power storage equipment group 220 can be charged by using the power grid; during daytime peak power consumption, if the power distribution unit 240 is connected to the device to be charged, the control unit 210 first uses the power of the electrical storage device group 220 to supply power to the device to be charged, and if the power of the electrical storage device group 220 is insufficient, the power grid and the electrical storage device group 220 are used to supply power simultaneously until all the power of the electrical storage device group 220 is exhausted, and at this time, the control unit 210 controls the power grid to charge the device to be charged.
Moreover, when the power grid is required to charge the power storage device group 220 and the device to be charged, the charged priority of the device to be charged is higher than the charged priority of the power storage device, that is, the power grid charges the device to be charged first, and when the charging of the device to be charged is completed or the required power of the device to be charged is smaller than the power supply power of the power grid, the control unit 210 controls the power grid to charge the power storage device group 220. For example, when the required power of the device to be charged is smaller than the supply power of the power grid, the power grid charges the power storage device group 220 on the basis of meeting the required power of the device to be charged.
Since during the actual charging process, the power of the grid is converted into DC power in the DC bus by the first AC/DC module 260. The bus power distribution unit distributes the electric energy in the direct current bus to the first DC/DC module. In this scenario, the first DC/DC module performs voltage conversion and then transfers the electric energy to the device to be charged for charging. As shown in fig. 3, fig. 3 is a schematic connection diagram of a first DC/DC module and a power distribution unit, where the first DC/DC module includes an a port and a B port, the power distribution unit is connected to both the a port and the B port through an internal switching element, and when the power distribution unit is connected to the B port of the first DC/DC module, electric energy flowing in through the bus power distribution unit flows into the power distribution unit after voltage conversion, and is distributed by the power distribution unit. When the power distribution unit is connected to the a port of the first DC/DC module, the electric storage device group is voltage-converted by the first DC/DC module and flows into the power distribution unit.
In other words, when charging the device to be charged via the power grid, firstly the electrical energy is distributed to the first DC/DC modules via the bus power distribution unit, for example, the DC bus outputs 1KW, and the bus power distribution unit may distribute 200W per first DC/DC module. The electrical energy flowing to the first DC/DC modules is then distributed by the power distribution unit for charging, for example, again in the manner of each first DC/DC module 200W for charging the device to be charged.
It can be understood that, when the device to be charged is charged by the grid, the electric energy of the DC bus 250 is directly supplied to the power distribution unit 240 through the conversion of the first DC/DC module, thereby charging the device to be charged. If the power storage device group 220 is charged by the power grid first and then the power storage device group 220 supplies power to the vehicle to be charged, the electric quantity needs to be stored in the power storage device group 220 through power conversion between the first AC/DC module 260 and the first DC/DC module 230, and then the charging of the device to be charged is realized through the first DC/DC module 230, that is, three times of power conversion is needed.
As an optional implementation manner of the present application, the charging apparatus 200 further includes an energy generating device 270, the energy generating device 270 is electrically connected to the dc bus 250, the control unit 210 is further electrically connected to the energy generating device 270, and a power supply priority of the energy generating device 270 is higher than a power supply priority of the electrical storage device group 220 and the power grid.
Optionally, the energy generating device 270 includes a light energy generating device 271, a second DC/DC module 272, a wind energy generating device 273, and a second AC/DC module 274, wherein the light energy generating device 271 is electrically connected to the DC bus 250 through the second DC/DC module 272, and the wind energy generating device 273 is electrically connected to the DC bus 250 through the second AC/DC module 274. The optical energy power generation device 271 can be a photovoltaic panel, and the optical energy power generation can be realized by using the photovoltaic panel, and the electric quantity generated by the optical energy power generation is transmitted to the direct current bus 250; the wind power generating apparatus 273 may be a windmill, etc., wherein the electric power generated by the wind power generating apparatus 273 is alternating current, and thus it is required to transmit the electric power generated by the wind power to the direct current bus 250 through the second AC/DC module 274.
Since the energy generated by the energy generating device 270 is clean energy, the device to be charged or the energy storage device set is charged by the electric energy generated by the energy generating device.
When the peak power utilization period is reached and the control unit 210 determines that the power supply power of the energy generating device 270 is greater than the required power of the device to be charged, the control unit controls the energy generating device 270 to supply power to the device to be charged and the power grid, when the control unit 210 determines that the power supply power of the energy generating device 270 is equal to the required power of the device to be charged, the energy generating device 270 is controlled to charge the device to be charged, and when the control unit 210 determines that the power supply power of the energy generating device 270 is less than the required power of the device to be charged, the energy generating device 270 and the power storage device group 220 are controlled to charge the device to be charged at the same time.
And, when the control unit 210 determines that the sum of the supply powers of the energy generation device 270 and the electrical storage device group 220 is smaller than the required power of the device to be charged, it controls the energy generation device 270, the electrical storage device group 220, and the grid to charge the device to be charged.
When the power consumption is in the valley period and the control unit determines that the power supplied by the energy generating device is greater than the power required by the device to be charged, the control unit 210 controls the energy generating device to supply power to the device to be charged and the power storage device group.
When it is determined that the power supplied by the energy generating device is equal to the required power of the device to be charged, the control unit 210 controls the energy generating device to charge the device to be charged.
And when the power supply power of the energy generation equipment is determined to be smaller than the required power of the equipment to be charged, controlling the energy generation equipment and the power grid to charge the equipment to be charged. And, when the control unit 210 determines that the sum of the supply power of the energy generating device 270 and the grid is still less than the required power of the device to be charged, the control unit 210 also controls the energy generating device 270, the storage device group 220, and the grid to simultaneously charge the device to be charged.
Meanwhile, when the electrical storage device group 220 needs to be charged, the electrical storage device group 220 is charged by the energy generation device 270 first, and if the electric energy generated by the energy generation device 270 is small at this time, the control unit 210 may further control the power grid to supply power to the electrical storage device group 220 simultaneously with the energy generation device 270 when the power grid is in the electricity consumption valley period.
When it is necessary to charge both the device to be charged and the electricity storage device group 220, both the energy generation device 270 and the grid preferentially charge the device to be charged.
As an optional implementation manner of the present application, the bus power distribution module is a bidirectional power distribution module, the first AC/DC module 260 is a bidirectional AC/DC module, and the bidirectional power distribution module is electrically connected to the direct current bus 250, the first DC/DC module 230, and the control unit 210 respectively.
When the power grid is in an under-voltage state, for example, when a plurality of users use power, the load of the power grid increases, and at this time, the problem of power grid under-voltage may occur, which affects the normal power consumption of the users. Therefore, in order to enable the power grid to be used by the user normally, the electric energy of the energy generation device 270 and the electric storage device group 220 can also be used for supplying power to the power grid. The concrete mode is as follows:
the control unit 210 is further configured to determine whether the power grid is a preset regional power grid when the power grid is in an undervoltage state, where the preset power grid is a power grid used by an important user, for example, the preset regional power grid is a research institute power grid, and has a high requirement on power consumption. Therefore, when the power grid is in an undervoltage state, other energy sources need to be used for supplying power to the power grid first, so as to ensure that users in the power grid can use power normally.
When the power grid is a preset regional power grid, the power grid in the region needs to be supplied with power firstly; at this time, the control unit 210 compares the output power of the energy generation device 270 with the required power of the power grid, and when the output power of the energy generation device 270 is greater than or equal to the required power of the power grid, the control unit 210 controls the energy generation device 270 to supply power to the power grid through the dc bus 250; when the output power of the energy generating device 270 is smaller than the required power of the power grid, the control unit 210 controls the energy generating device 270 and the electrical storage device group 220 to supply power to the power grid through the dc bus 250.
And, when the grid returns to normal, the control unit 210 controls the energy generating device 270, the electrical storage device group 220 and the grid to charge the device to be charged.
When the power grid is not the preset regional power grid, the control unit 210 controls the energy generating device 270 to supply power to the device to be charged through the dc bus 250 when the output power of the energy generating device 270 is greater than or equal to the required power of the device to be charged; or when the output power of the energy generating device 270 is smaller than the required power of the power grid, controlling the energy generating device 270 and the electrical storage device group 220 to charge the device to be charged through the direct current bus 250.
After the device to be charged is charged, the control unit 210 controls the energy generating device 270 and the electrical storage device group 220 to supply power to the power grid.
Through the charging device 200 provided by the application, charging according to a priority mode can be achieved, energy loss caused in a power conversion process is effectively reduced, and charging efficiency is improved.
Second embodiment
Referring to fig. 4, the present application provides a charging system, which includes at least two charging devices 200 according to the first embodiment, and the charging devices 200 are electrically connected to each other.
The charging system further includes a DC bus 250 and a first AC/DC module 260 (shown as bidirectional AC/DC), each charging device 200 is electrically connected to the DC bus 250 (shown as 750V DC bus), and the DC bus 250 is connected to a grid (shown as AC 330V) through the first AC/DC module 260.
When the power consumption peak period is reached, the control unit 210 is configured to control the electrical storage device group of the target charging apparatus to supply power to the device to be charged when the output power of the electrical storage device group 220 (illustrated as a stepped battery) of the target charging apparatus is greater than or equal to the required power of the device to be charged.
The control unit 210 is also configured to control part or all of the electrical storage device group of the charging apparatus to supply power to the device to be charged when the output power of the electrical storage device group of the target charging apparatus is smaller than the required power of the device to be charged.
The target charging device described in the present application refers to a charging device connected to a device to be charged. That is, when the power consumption is in the peak period, the control unit 210 first charges the device to be charged with the electricity storage device group of the target charging apparatus. If the charging requirement of the device to be charged cannot be met, the control unit 210 charges the device to be charged by using the target charging apparatus and the storage battery apparatuses of other charging apparatuses together. If the charging demand of the device to be charged cannot be met by charging the device to be charged by using all the charging devices, the control unit 210 charges the device to be charged by using all the charging devices and the power grid at the same time.
When the power grid is in the electricity consumption valley period, the control unit is used for controlling the power grid to supply power to the equipment to be charged when the output power of the power grid is greater than or equal to the required power of the equipment to be charged;
the control unit is also used for controlling the power grid and part or all of the electric storage equipment groups of the charging device to supply power to the equipment to be charged when the output power of the power grid is less than the required power of the equipment to be charged.
Of course, the charging device may also include energy generation equipment (photovoltaic and wind energy shown) with the highest priority for power. When the power consumption peak period is reached, firstly, the energy generating equipment is utilized to charge the equipment to be charged, if the charging requirement of the equipment to be charged cannot be met, the energy generating equipment and the target charging device are utilized to charge the equipment to be charged together, if the charging requirement of the equipment to be charged cannot be met at the moment, the energy generating equipment and part or all of the charging devices are utilized to charge the equipment to be charged together, and if the charging requirement of the equipment to be charged cannot be met at the moment, the energy generating equipment, all of the charging devices and the power grid are utilized to charge the equipment to be charged together.
When the power consumption is in a low-ebb period, firstly, the energy generation equipment is used for charging the equipment to be charged, if the charging requirement of the equipment to be charged cannot be met, the energy generation equipment and the power grid are used for charging the equipment to be charged together, if the charging requirement of the equipment to be charged cannot be met at the moment, the energy generation equipment, the power grid and the target charging device are used for charging the equipment to be charged together, and if the charging requirement of the equipment to be charged cannot be met at the moment, the energy generation equipment, the power grid and part or all of the charging devices are used for charging the equipment to be charged together.
Third embodiment
Referring to fig. 5, the present application further provides a charging method applied to the control unit of the charging device described in the first embodiment or the second embodiment, the charging device comprises an electric storage equipment group, a first DC/DC module, a power distribution unit, a direct current bus, a bus power distribution unit and a first AC/DC module, wherein the first AC/DC module is connected to a power grid, a control unit is electrically connected with the first DC/DC module, the power distribution unit, the direct current bus, the bus power distribution unit and the first AC/DC module respectively, the electric storage equipment group, the first DC/DC module and the power distribution unit are electrically connected, the direct current bus is electrically connected with the bus power distribution unit and the first AC/DC module respectively, and the bus power distribution unit is also electrically connected with the first DC/DC module.
The method comprises the following steps:
s102, when the power distribution unit is connected with the equipment to be charged, judging whether the power distribution unit is in a power utilization peak period, and if so, executing S104; if not, S110 is performed.
And S104, judging whether the output power of the electric storage equipment group is smaller than the required power of the equipment to be charged. If yes, S106 is performed, and if no, S108 is performed.
And S106, controlling the first AC/DC module to work, and supplying power to the equipment to be charged by utilizing the electric storage equipment group and the power grid.
And S108, controlling the electric storage equipment group to supply power to the equipment to be charged.
S110, judging whether the output power of the power grid is smaller than the required power of the equipment to be charged; if not, S112 is performed, and if yes, S114 is performed.
And S112, controlling the power grid to supply power to the equipment to be charged.
And S114, controlling the power grid and the electric storage equipment group to supply power to the equipment to be charged.
And, as an implementation, the charging device further includes an energy generating device, the energy generating device is electrically connected with the dc bus, and the control unit is electrically connected with the energy generating device. Wherein the power supply priority of the energy generating device is highest.
Referring to fig. 6, the method includes:
s101, when the power distribution unit is connected with the equipment to be charged, judging whether the power distribution unit is in a power utilization peak period, and if so, executing S101-1; if not, S101-5 is performed.
S101-1, comparing the power supply power of the energy generating device with the required power of the device to be charged, if the power supply power is larger than the required power, executing S101-2, if the power supply power is equal to the required power, executing S101-3, and if the power supply power is smaller than the required power, executing S101-4.
And S101-2, controlling the energy generating equipment to supply power to the equipment to be charged and a power grid.
And S101-3, controlling the energy generating equipment to charge the equipment to be charged.
And S101-4, controlling the energy generation equipment and the electric storage equipment set to charge the equipment to be charged.
And S101-5, comparing the power supply power of the energy generating device with the required power of the device to be charged, if the power supply power is larger than the required power, executing S101-6, if the power supply power is equal to the required power, executing S101-7, and if the power supply power is smaller than the required power, executing S101-8.
And S101-6, controlling the energy generating equipment to supply power to the equipment to be charged and the electric storage equipment group.
And S101-7, controlling the energy generating equipment to charge the equipment to be charged.
And S101-8, controlling the energy generation equipment and the power grid to charge the equipment to be charged.
Since the charging method provided by the present application is the same as the working principle and the control logic of the charging device, the working principle and the control logic of the charging method are not described in detail in this embodiment to avoid redundancy.
In summary, the present application provides a charging apparatus, a charging system and a charging method, where the charging apparatus includes an electrical storage device group, a first DC/DC module, a power distribution unit and a control unit, the control unit is electrically connected to the first DC/DC module and the power distribution unit, respectively, and the electrical storage device group, the first DC/DC module and the power distribution unit are electrically connected to each other. The control unit is used for controlling the power distribution unit to charge the equipment to be charged by utilizing the electric storage equipment group. Because the charging device provided by the application only needs to perform power conversion once, and then the charging of the equipment to be charged is realized by using the power distribution unit, the times of power conversion are reduced, the energy loss is reduced, and the charging efficiency is further improved.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
It will be evident to those skilled in the art that the present application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (4)

1. A charging apparatus, comprising an electric storage device group, a first DC/DC module, a power distribution unit, and a control unit, wherein the control unit is electrically connected to the first DC/DC module and the power distribution unit, respectively, the electric storage device group, the first DC/DC module, and the power distribution unit are electrically connected, the electric storage device group comprises a plurality of echelon batteries, the first DC/DC module is plural, one echelon battery is electrically connected to one first DC/DC module, and the power distribution unit is electrically connected to each first DC/DC module; wherein the content of the first and second substances,
the power distribution unit is used for connecting equipment to be charged;
the control unit is used for controlling the power distribution unit to charge the equipment to be charged by utilizing the electric storage equipment group;
the power distribution unit is used for distributing the output power of the first DC/DC module according to the required power of the equipment to be charged and determining the output power of each echelon battery according to the residual electric quantity of each echelon battery in the electric storage equipment group;
the control unit is used for controlling the working state of the first DC/DC module;
the charging device further comprises a direct current bus, a first AC/DC module and a bus power distribution unit, wherein the first AC/DC module is connected to a power grid, the direct current bus is respectively electrically connected with the bus power distribution unit and the first AC/DC module, the bus power distribution unit is also electrically connected with the first DC/DC module, and the control unit is also electrically connected with the first AC/DC module and the bus power distribution unit;
when the power utilization peak period is reached, the power supply priority of the power storage equipment group is higher than that of the power grid; wherein the content of the first and second substances,
the control unit is used for controlling the electric storage equipment group to supply power to the equipment to be charged when the output power of the electric storage equipment group is determined to be greater than or equal to the required power of the equipment to be charged;
the control unit is further used for controlling the first AC/DC module and the bus power distribution unit to work when the output power of the electric storage equipment group is determined to be smaller than the required power of the equipment to be charged, so that the electric storage equipment group and the power grid are used for supplying power to the equipment to be charged;
when the power utilization period is in the power utilization valley period, the power supply priority of the power storage equipment group is smaller than the power supply priority of the power grid; wherein the content of the first and second substances,
the control unit is used for controlling the power grid to charge the equipment to be charged and the electric storage equipment group when the output power of the power grid is determined to be larger than the required power of the equipment to be charged;
the control unit is further used for controlling the power grid to charge the equipment to be charged when the output power of the power grid is determined to be equal to the required power of the equipment to be charged;
the control unit is further used for controlling the power grid and the electric storage equipment group to charge the equipment to be charged together when the output power of the power grid is determined to be smaller than the required power of the equipment to be charged;
the charging device further comprises energy generation equipment, the energy generation equipment is electrically connected with the direct current bus, the control unit is further electrically connected with the energy generation equipment, and the power supply priority of the energy generation equipment is highest; wherein the content of the first and second substances,
when the power supply peak period is reached, the control unit is used for controlling the energy generating equipment to supply power to the equipment to be charged and the power grid when the power supply power of the energy generating equipment is determined to be larger than the required power of the equipment to be charged;
the control unit is further used for controlling the energy generating equipment to charge the equipment to be charged when the power supply power of the energy generating equipment is determined to be equal to the required power of the equipment to be charged;
the control unit is further used for controlling the energy generation equipment and the electric storage equipment group to charge the equipment to be charged when the power supply power of the energy generation equipment is determined to be smaller than the required power of the equipment to be charged;
when the power utilization period is in the power utilization valley period, the control unit is used for controlling the energy generating equipment to supply power to the equipment to be charged and the electric storage equipment group when the power supply power of the energy generating equipment is determined to be larger than the required power of the equipment to be charged;
the control unit is further used for controlling the energy generating equipment to charge the equipment to be charged when the power supply power of the energy generating equipment is determined to be equal to the required power of the equipment to be charged;
the control unit is further used for controlling the energy generation equipment and the power grid to charge the equipment to be charged when the power supply power of the energy generation equipment is determined to be smaller than the required power of the equipment to be charged;
the bus power distribution unit is a bidirectional power distribution module, the first AC/DC module is a bidirectional AC/DC module, wherein,
the control unit is used for controlling the energy generating equipment to supply power to the power grid through the direct current bus when the power grid is in an undervoltage state and the output power of the energy generating equipment is greater than or equal to the required power of the power grid;
the control unit is further used for controlling the energy generation equipment and the electric storage equipment group to supply power to the power grid through the direct current bus when the power grid is in an undervoltage state and the output power of the energy generation equipment is smaller than the required power of the power grid;
the control unit is also used for judging whether the power grid is a preset regional power grid or not when the power grid is in an undervoltage state;
if so, the control unit is used for controlling the energy generating equipment to supply power to the power grid through the direct current bus when the output power of the energy generating equipment is greater than or equal to the required power of the power grid; or when the output power of the energy generating equipment is smaller than the required power of the power grid, controlling the energy generating equipment and the electric storage equipment group to supply power to the power grid through the direct current bus;
if not, the control unit is used for controlling the energy generating equipment to supply power to the equipment to be charged through the direct current bus when the output power of the energy generating equipment is greater than or equal to the required power of the equipment to be charged; or when the output power of the energy generation equipment is smaller than the required power of the equipment to be charged, controlling the energy generation equipment and the electric storage equipment group to charge the equipment to be charged through the direct current bus.
2. A charging arrangement as claimed in claim 1, in which the energy generating device comprises a light energy generating device, a second DC/DC module, a wind energy generating device, a second AC/DC module, the light energy generating device being electrically connected to the DC bus via the second DC/DC module, the wind energy generating device being electrically connected to the DC bus via the second AC/DC module.
3. A charging system comprising at least two charging devices according to claim 1 or 2, and wherein the charging devices are electrically connected to each other.
4. The charging system of claim 3, further comprising a DC bus and a first AC/DC module, each of the charging devices being electrically connected to the DC bus, the DC bus being connected to a power grid through the first AC/DC module; wherein the content of the first and second substances,
when the power utilization peak period is reached, the control unit is used for controlling the electric storage equipment group of the target charging device to supply power to the equipment to be charged when the output power of the electric storage equipment group of the target charging device is greater than or equal to the required power of the equipment to be charged; the target charging device is a charging device connected with the equipment to be charged;
the control unit is further used for controlling part or all of the electric storage equipment groups of the charging device to supply power to the equipment to be charged when the output power of the electric storage equipment group of the target charging device is smaller than the required power of the equipment to be charged;
when the power consumption is in a low-ebb period, the control unit is used for controlling the power grid to supply power to the equipment to be charged when the output power of the power grid is greater than or equal to the required power of the equipment to be charged;
the control unit is further used for controlling the power storage equipment group of the power grid, part of or all of the charging devices to supply power to the equipment to be charged when the output power of the power grid is smaller than the required power of the equipment to be charged.
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Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112140921B (en) * 2020-10-06 2022-07-19 国网山东省电力公司禹城市供电公司 Electric vehicle charging station system for expressway
CN113335108A (en) * 2021-06-21 2021-09-03 金炫宇 Charging system and method suitable for new energy electric automobile
CN113291173A (en) * 2021-07-02 2021-08-24 西安特锐德智能充电科技有限公司 Charging device, method and system
TWI818492B (en) * 2022-03-31 2023-10-11 良豐能源科技有限公司 Vehicle charging pile and control method thereof
CN116142011B (en) * 2023-04-20 2023-07-18 中宏科创新能源科技(浙江)有限公司 Energy storage charging system and current distribution control method
CN116512967A (en) * 2023-06-12 2023-08-01 西安图为电气技术有限公司 Charging system
CN116533811B (en) * 2023-07-04 2023-09-26 广汽埃安新能源汽车股份有限公司 Vehicle charging control system and control method thereof
CN116760153B (en) * 2023-08-17 2024-04-16 中宏科创新能源科技(浙江)有限公司 Energy storage system integrating battery management and variable-current control

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103066677A (en) * 2013-02-04 2013-04-24 广州市竣达智能软件技术有限公司 Self-adaptive hybrid power supply system
CN105480110A (en) * 2016-01-12 2016-04-13 沈阳工业大学 Intelligent charging pile and intelligent charging method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5103923A (en) * 1989-11-30 1992-04-14 Marathon Letourneau Company Method and apparatus for propelling and retarding off-road haulers
CN207368922U (en) * 2017-08-24 2018-05-15 深圳市沃特玛电池有限公司 Photovoltaic energy storage charging integration system
CN110474356A (en) * 2019-09-15 2019-11-19 长园深瑞继保自动化有限公司 Storage integrated method and system are filled based on multiplexing bidirectional DC/DC converter
CN110661317B (en) * 2019-10-18 2021-12-10 宁波恒晨电力建设有限公司 LED municipal street lamp and direct current fill electric pile integration equipment

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103066677A (en) * 2013-02-04 2013-04-24 广州市竣达智能软件技术有限公司 Self-adaptive hybrid power supply system
CN105480110A (en) * 2016-01-12 2016-04-13 沈阳工业大学 Intelligent charging pile and intelligent charging method

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