CN114905996A - Split type electric pile that fills of electric automobile who charges in order - Google Patents

Split type electric pile that fills of electric automobile who charges in order Download PDF

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Publication number
CN114905996A
CN114905996A CN202210623662.9A CN202210623662A CN114905996A CN 114905996 A CN114905996 A CN 114905996A CN 202210623662 A CN202210623662 A CN 202210623662A CN 114905996 A CN114905996 A CN 114905996A
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China
Prior art keywords
split
charging
power
piles
cabinet
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Granted
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CN202210623662.9A
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Chinese (zh)
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CN114905996B (en
Inventor
吴坤盛
李文辉
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Guangdong Hongxin Electric Power Technology Co ltd
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Guangzhou Hongxin Information 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
    • B60L53/30—Constructional details of charging stations
    • B60L53/31—Charging columns specially adapted for electric vehicles
    • 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
    • B60L53/30—Constructional details of charging stations
    • B60L53/302—Cooling of charging equipment
    • 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
    • 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
    • B60L53/68—Off-site monitoring or control, e.g. remote control
    • 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
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • Y02T90/12—Electric charging stations

Abstract

The invention relates to the technical field of charging piles, and particularly provides an orderly-charged split charging pile for an electric automobile, which comprises a power cabinet, a plurality of split piles and an intelligent management terminal; the power supply cabinet is used for providing electric energy required by charging of the electric automobile; the split piles are connected with the power cabinet and used for acquiring electric energy from the power cabinet and charging the electric energy into the electric automobile; the intelligent management terminal is respectively connected with the power cabinet and the split piles, and is used for acquiring first working data of the power cabinet and second working data of the split piles, processing and analyzing the first working data and the second working data, and selecting a preset management mode according to an analysis result to implement electric energy distribution and charging management. On the basis of supporting more electric vehicles to be charged, the charging system can better maintain the charging order, adjust the charging speed of the electric vehicles, ensure the good working state of the charging pile and improve the charging efficiency.

Description

Split type electric pile that fills of electric automobile who charges in order
Technical Field
The invention relates to the technical field of charging piles, in particular to a split type charging pile for orderly charging electric automobiles.
Background
The charging piles for charging the electric automobiles are integrated and split, the integrated charging piles can be independently used, the number of the electric automobiles which can be supported by the integrated charging piles each time is small, when the number of the electric automobiles needing to be charged is large, the number of the integrated charging piles required to be equipped is large, and the investment cost is large; the split type fills the mode that adopts every power cabinet to dispose a plurality of components of a whole that can function independently stake, and every components of a whole that can function independently stake all can charge for electric automobile, consequently can support more electric automobile to charge simultaneously, supports the electric automobile of the same quantity simultaneously and charges required cost and fill electric pile than the integral type and be little.
At present, the control of the existing charging pile is simple, the charging can only be realized being opened and closed, even the split type charging pile can not realize charging pile to carry out orderly adjustment on the charging of the electric automobile, the charging speed of the electric automobile can not be adjusted, the working state of the charging pile can not be ensured to be good, and the charging efficiency can not be improved.
Disclosure of Invention
In order to solve the technical problem, the invention provides an orderly-charged split charging pile for an electric automobile, which comprises a power cabinet, a plurality of split piles and an intelligent management terminal;
the power supply cabinet is used for connecting a mains supply network and providing electric energy required by charging of the electric automobile;
the split piles are connected with the power cabinet and used for acquiring electric energy from the power cabinet and charging the electric energy into the electric automobile;
the intelligent management terminal is connected with the power cabinet and the split piles respectively, and is used for collecting first working data of the power cabinet and second working data of the split piles, processing and analyzing the first working data and the second working data, and selecting a preset management mode according to an analysis result to implement electric energy distribution and charging management.
Optionally, the power supply cabinet is connected with an energy storage cabinet, and the energy storage cabinet is connected with the intelligent management terminal;
the battery pack in the energy storage cabinet can acquire electric energy from the power supply cabinet for charging and storing energy; when the mains supply network cannot supply power to the power cabinet, the battery pack in the energy storage cabinet supplies electric energy required by charging of the electric automobile to the power cabinet;
the intelligent management terminal detects the power supply condition of the mains supply network of the power cabinet and the energy storage condition of the battery pack and coordinates and controls the charging and discharging of the battery pack in the energy storage cabinet.
Optionally, the intelligent management terminal comprises an alarm module, and the alarm module can send out alarm prompt information when the power cabinet and/or the split piles are abnormal.
Optionally, the intelligent management terminal includes a self-checking module, a fault diagnosis module, and a repair module;
the self-checking module is used for regularly or irregularly detecting the states of the power cabinet and the split piles according to a preset mode;
the fault diagnosis module is used for diagnosing fault types according to the previous working conditions of the power cabinet and the split piles and the current state detection condition during fault;
and the repair module is used for selecting a repair scheme from the repair scheme library according to the fault type, repairing and eliminating the fault.
Optionally, the intelligent management terminal includes a communication module, and the communication module is used for connecting a network to implement remote communication;
the intelligent management terminal can be connected with the cloud management platform through the communication module, receives remote supervision of the cloud management platform and obtains software upgrading service from the cloud management platform.
Optionally, the intelligent management terminal includes a verification module and a data encryption module, where the data encryption module is configured to encrypt data to be transmitted;
the verification module is used for performing identity verification when the cloud management platform is accessed through the network, and does not allow the cloud management platform to be accessed if the identity verification is unsuccessful, and can perform access operation under a preset authority if the identity verification is successful.
Optionally, the split pile is provided with a display screen, a card reader and an emergency button; the display screen is used for charging operation and charging data display when a user of the electric automobile charges; the card reader is used for sensing and reading a user card; the emergency button is used for stopping operation in emergency;
the intelligent management terminal comprises a display and an operation panel, wherein the display is used for working states and fault conditions of the power cabinet and the split piles; the operation panel is used for setting working parameters and selecting working modes.
Optionally, power cabinet and components of a whole that can function independently stake are furnished with cooling device, cooling device includes:
the refrigeration cycle subsystem comprises a compressor, a condenser, an expansion valve and a primary side of a heat exchanger which are connected in sequence by adopting refrigerant pipe circulation to form primary side refrigerant circulation;
the cooling liquid circulation subsystem comprises a circulating pump, a secondary side of the heat exchanger and a cooler which are sequentially connected in a pipeline circulation manner to form secondary side cooling liquid circulation; the cooler comprises a first cooler and a plurality of second coolers which are arranged in parallel, and the first cooler and the second coolers are respectively used for heat dissipation of the power cabinet and the split piles.
Optionally, the intelligent management terminal includes a data collector and a microprocessor;
the data acquisition unit is connected with a temperature sensor, a pressure sensor, a voltage measuring instrument and a current measuring instrument; the temperature sensors, the voltage measuring instruments and the current measuring instruments are multiple, and the temperature sensors are respectively used for measuring the ambient temperature, the temperature in the power cabinet, the temperature in the split piles and the temperature of the cooling liquid; the pressure sensor is used for measuring the pressure of the cooling liquid; the voltage measuring instrument and the current measuring instrument are respectively used for measuring the voltage and the current of the power cabinet and the split piles;
the microprocessor is connected with the data collector, a heat load calculation model is arranged in the microprocessor, and the microprocessor is used for processing and analyzing the collected data provided by the data collector, generating a control instruction and coordinating and controlling the operation of the power cabinet, the split piles and the cooling device; the heat load calculation model is used for calculating the heat load of the power cabinet and the split piles in real time, and determining the running state of the cooling device and the flow of the cooling liquid distributed to the power cabinet and the split piles according to the total heat load.
Optionally, the intelligent management terminal includes a data analysis module, an electric energy distribution module, and an execution module;
the data analysis module sorts the split piles currently charging the electric vehicle according to time sequence according to the charging start time data of the split piles in the second working data, and associates the sorting sequence with the output power of the corresponding split piles; calculating and determining the power margin of the power cabinet according to the first working data;
the electric energy distribution module performs weight assignment on the split piles according to the sequence, the assignment takes the charging start time difference of the split piles in the adjacent sequence as a reference object, the weight value in the front sequence is large, and the weight value in the back sequence is small; then, the power allowance of the power cabinet is redistributed according to the weight value of each split pile, and the output power increment of each split pile is determined;
if the power cabinet has no power allowance and a newly added split pile for starting to charge the electric automobile exists, the newly added split pile adopts set initial output power to charge the electric automobile, the initial output power is distributed according to the previous weight value to calculate each power decrement, each power decrement is sequenced from small to large according to each power decrement and is associated with the sequencing sequence of the previous split piles, namely, the first minimum power decrement is sequenced and connected in parallel with the first split pile which is sequenced and started earliest, and the second maximum power decrement is sequenced and connected in parallel with the last split pile which is sequenced and started latest;
and the execution module adjusts the output power of each split pile according to the output power increment or the associated power decrement of each split pile.
According to the split charging pile for the electric vehicles capable of being charged in order, the intelligent management terminal is arranged to monitor and manage the power cabinet and the split piles of the split charging pile, electric energy distribution and charging management are implemented according to a selected management mode, and the charging speed of the split piles is adjusted according to acquired data, so that the charging pile can better maintain the charging order, adjust the charging speed of the electric vehicles, guarantee the good working state of the charging pile and improve the charging efficiency on the basis of supporting more electric vehicles.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of a split charging pile for orderly charging an electric vehicle according to an embodiment of the invention;
FIG. 2 is a schematic diagram of an intelligent management terminal adopted by the split charging pile embodiment of the electric vehicle capable of orderly charging according to the invention;
FIG. 3 is a schematic perspective view of an intelligent management terminal adopted in an embodiment of the split charging pile for orderly charging electric vehicles according to the invention;
fig. 4 is a schematic view of a cooling device adopted in the embodiment of the split charging pile for orderly charging the electric vehicle.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
As shown in fig. 1, an embodiment of the present invention provides an orderly-charged split charging pile for an electric vehicle, including a power cabinet 1, a plurality of split piles 2, and an intelligent management terminal 3;
the power cabinet 1 is used for connecting a mains supply network and providing electric energy required by charging of the electric automobile;
the split pile 2 is connected with the power cabinet 1, and the split pile 2 is used for acquiring electric energy from the power cabinet 1 and charging the electric energy into the electric automobile;
the intelligent management terminal 3 is respectively connected with the power cabinet 1 and the split piles 2, and the intelligent management terminal 3 is used for collecting first working data of the power cabinet 1 and second working data of the split piles 2, processing and analyzing the first working data and the second working data, and selecting a preset management mode according to an analysis result to implement electric energy distribution and charging management.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the intelligent management terminal is arranged to monitor and manage the power cabinet and the split piles of the split charging pile, electric energy distribution and charging management are carried out according to a selected management mode, and the charging speed of the split piles is adjusted according to collected data, so that the charging pile can better maintain the charging order, adjust the charging speed of the electric vehicles, ensure the good working state of the charging pile and improve the charging efficiency on the basis of supporting more electric vehicles to be charged; wherein, every components of a whole that can function independently stake all can be connected with at least one rifle that charges.
In one embodiment, as shown in fig. 1, the power cabinet 1 is connected with an energy storage cabinet 4, and the energy storage cabinet 4 is connected with the intelligent management terminal 3;
the energy storage cabinet 4 is internally provided with a battery pack, and the battery pack in the energy storage cabinet 4 can acquire electric energy from the power supply cabinet 1 for charging and storing energy; when the mains supply network cannot supply power to the power cabinet 1, the battery pack in the energy storage cabinet 4 supplies electric energy required by charging of the electric automobile to the power cabinet 1;
the intelligent management terminal 3 coordinates and controls the charging and discharging of the battery pack in the energy storage cabinet 4 by detecting the power supply condition of the commercial power supply network of the power cabinet 1 and the energy storage condition of the battery pack.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the energy storage cabinet is arranged, so that when no or few electric automobiles are charged, the battery pack is charged and stored with energy by the power supply cabinet; when the mains supply network cannot supply power to the power cabinet, the battery pack in the energy storage cabinet is used for discharging and supplying the power cabinet, so that the power cabinet can still support the split piles to charge the needed electric automobile; the problem that the charging service cannot be provided when the commercial power supply network fails is avoided.
In one embodiment, as shown in fig. 2, the intelligent management terminal 3 includes an alarm module, and the alarm module can send out an alarm prompt message when the power cabinet and/or the split pile are abnormal.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the alarm module is arranged, alarm prompt information is sent out when the power cabinet and/or the split piles are abnormal, so that related personnel are reminded to take corresponding measures in time, equipment faults are eliminated, the equipment faults are prevented from being recovered for a long time, and the influence is brought to the charging service provided for the electric automobile.
In one embodiment, as shown in fig. 2, the intelligent management terminal 3 includes a self-test module, a fault diagnosis module and a repair module;
the self-checking module is used for regularly or irregularly detecting the states of the power cabinet and the split piles according to a preset mode;
the fault diagnosis module is used for diagnosing fault types according to the previous working conditions of the power cabinet and the split piles and the current state detection condition during fault;
and the repair module is used for selecting a repair scheme from the repair scheme library according to the fault type, repairing and eliminating the fault.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the self-checking module is arranged to detect the states of the power cabinet and the split piles regularly or irregularly, diagnose the current fault according to the state detection condition and the early working condition, determine the fault type, select the repair scheme from the repair scheme library and remove the fault repair equipment; the number of on-site maintenance times and time can be reduced, the maintenance cost is reduced, and the maintenance efficiency is improved.
In one embodiment, as shown in fig. 2, the intelligent management terminal 3 includes a communication module, and the communication module is used for connecting a network to realize remote communication;
the intelligent management terminal can be connected with the cloud management platform through the communication module, receives remote supervision of the cloud management platform, and obtains software upgrading service from the cloud management platform.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the communication module is connected with the network for data interaction, so that remote monitoring and management can be carried out on the equipment, field maintenance is reduced, and maintenance cost is reduced; software upgrading can be timely and efficiently carried out on the charging pile, the efficiency and the service quality of equipment charging service are improved, and good user experience is enhanced.
In one embodiment, as shown in fig. 2, the intelligent management terminal includes an authentication module and a data encryption module, where the data encryption module is configured to encrypt data to be transmitted;
the verification module is used for performing identity verification when the cloud management platform is accessed through the network, and does not allow the cloud management platform to be accessed if the identity verification is unsuccessful, and can perform access operation under a preset authority if the identity verification is successful.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the data encryption module is arranged to encrypt the data to be transmitted, so that the data security is improved; identity authentication is carried out through the authentication module, bad access is eliminated, the probability of being attacked by a network is reduced, and the safety and the stability of equipment are enhanced.
In one embodiment, the split pile is provided with a display screen, a card reader and an emergency button; the display screen is used for charging operation and charging data display when a user of the electric automobile charges; the card reader is used for sensing and reading a user card; the emergency button is used for stopping operation in emergency;
as shown in fig. 3, the intelligent management terminal 3 includes a display 31 and an operation panel 32, where the display 31 is used for working states and fault conditions of a power cabinet and a split pile; the operation panel 32 is used for setting operation parameters and selecting an operation mode.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the display screen is arranged on the split pile, so that a client can conveniently perform function operation and charging data display, and visual management of equipment maintenance and use is realized; the card reader is arranged to sense and read the user card, so that a card holder can use and pay conveniently; the emergency button is arranged so that the emergency can be forcibly stopped in emergency, and the accident risk is prevented or reduced; the display is arranged on the intelligent management terminal to visually monitor the working states and fault conditions of the power cabinet and the split piles; the operation panel is arranged to provide convenience for maintenance management personnel.
In one embodiment, as shown in fig. 4, the power cabinet 1 and the split piles 2 are provided with cooling means; the cooling device comprises a refrigeration circulation subsystem and a cooling liquid circulation subsystem;
the refrigeration cycle subsystem comprises a compressor 51, a condenser 52, an expansion valve 53 and a primary side of a heat exchanger 54 which are connected in sequence by adopting refrigerant pipe circulation to form primary side refrigerant circulation; the condenser 52 is provided with a fan 55;
the cooling liquid circulation subsystem comprises a circulating pump 56, a secondary side of the heat exchanger 54 and a cooler which are connected in sequence in a pipeline circulation manner to form secondary side cooling liquid circulation; the cooler comprises a first cooler 57 and a plurality of second coolers 58 which are arranged in parallel, the first cooler 57 and the second coolers 58 are respectively used for heat dissipation of the power cabinet 1 and the split piles 2, and the first cooler 57 is provided with a fan 59;
the primary-side refrigerant cycle and the secondary-side refrigerant cycle of the heat exchanger 54 are connected in a counter-flow manner.
The working principle and the beneficial effects of the technical scheme are as follows: this scheme is through configuration cooling device give power cabinet and components of a whole that can function independently stake heat dissipation, and cooling device adopts the two-stage circulation mode: the primary side refrigerant circulation and the secondary side cooling liquid circulation are connected in a countercurrent mode, and heat exchange efficiency can be improved; the cooler adopting secondary side cooling liquid circulation is used for dissipating heat of the power cabinet and the split piles, wherein the first cooler is configured for dissipating heat of the power cabinet, the second cooler is configured for dissipating heat of the split piles, on one hand, energy consumption of the cooling device is reduced through cooling medium circulation, on the other hand, risk increase caused by the fact that a large amount of condensed water is generated due to too low temperature when the cooling medium circulation is directly used for the power cabinet and the split piles is avoided, and through buffering of secondary side cooling liquid circulation, temperature values of the cooler are conveniently controlled, and therefore the cooler is prevented from generating condensed water.
The intelligent management terminal comprises a data acquisition unit and a microprocessor;
the data acquisition unit is connected with a temperature sensor, a pressure sensor, a voltage measuring instrument and a current measuring instrument; the temperature sensors, the voltage measuring instruments and the current measuring instruments are multiple, and the temperature sensors are respectively used for measuring the ambient temperature, the temperature in the power cabinet, the temperature in the split piles and the temperature of the cooling liquid; the pressure sensor is used for measuring the pressure of the cooling liquid; the voltage measuring instrument and the current measuring instrument are respectively used for measuring the voltage and the current of the power cabinet and the split piles;
the microprocessor is connected with the data collector, a heat load calculation model is arranged in the microprocessor, and the microprocessor is used for processing and analyzing the collected data provided by the data collector, generating a control instruction and coordinating and controlling the operation of the power cabinet, the split piles and the cooling device; the heat load calculation model is used for calculating the heat load capacity of the power cabinet and the split piles in real time, and determining the running state of the cooling device and the flow of cooling liquid distributed to the power cabinet and the split piles according to the total heat load;
the microprocessor is connected with a GPS positioning module, and the GPS positioning module is used for determining the geographical position used by the equipment;
the microprocessor inquires a network through the communication module according to the geographic position to determine the local altitude;
and a parameter correction model is arranged in the microprocessor, the parameter correction model corrects the equipment control parameters according to the altitude, and the corrected parameters are used for carrying out coordination control on the power cabinet, the split piles and the cooling device.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, various data such as environment, a power cabinet, a split pile, a cooling device and the like are adopted by a temperature sensor, a pressure sensor, a voltage measuring instrument and a current measuring instrument which are connected through a data acquisition unit, and are processed and analyzed through a microprocessor, so that coordinated control over the power cabinet, the split pile and the cooling device is implemented; the microprocessor is internally provided with a heat load calculation model, calculates the heat load in real time, determines the running state of the cooling device and the flow of cooling liquid distributed to coolers arranged in a power cabinet and split piles according to the total heat load, improves the regulation and control precision, enables the running of the cooling device to be adapted to the heat dissipation requirement, can prevent running faults or potential safety hazards caused by insufficient heat dissipation and temperature rise, can also prevent excessive regulation and control from existing, enables the running state of the cooling device to swing constantly, reduces running unbalance, reduces the fault rate and prolongs the service life of the cooling device; the geographical position used by the equipment is automatically determined by setting a GPS positioning module, and the altitude data is searched and inquired and determined through a network, so that the trouble of manual determination or omission and error of manual operation are reduced; on the basis, the equipment control parameters are corrected according to the altitude by matching with a parameter correction model built in the microprocessor, and then the equipment control parameters are used for performing coordination control on the power cabinet, the split piles and the cooling device, so that the control precision of the operation of the equipment can be further improved, the control deviation of the equipment caused by different use places and altitude differences is prevented, and the operation efficiency of the equipment is prevented from being influenced or the service life of the equipment is shortened by automatic correction.
In one embodiment, as shown in fig. 2, the intelligent management terminal includes a data analysis module, an electric energy distribution module and an execution module;
the data analysis module sorts the split piles currently charging the electric vehicle according to time sequence according to the charging start time data of the split piles in the second working data, and associates the sorting sequence with the output power of the corresponding split piles; calculating and determining the power margin of the power cabinet according to the first working data;
the electric energy distribution module carries out weight assignment on the split piles according to the sequence, the assignment takes the charging start time difference of the split piles in the adjacent sequence as a reference object, the weight value in the front sequence is large, and the weight value in the back sequence is small; then, the power allowance of the power cabinet is redistributed according to the weight value of each split pile, and the output power increment of each split pile is determined;
if the power cabinet has no power allowance and a newly added split pile for starting to charge the electric automobile exists, the newly added split pile adopts set initial output power to charge the electric automobile, the initial output power is distributed according to the previous weight value to calculate each power decrement, each power decrement is sequenced from small to large according to each power decrement and is associated with the sequencing sequence of the previous split piles, namely, the first minimum power decrement is sequenced and connected in parallel with the first split pile which is sequenced and started earliest, and the second maximum power decrement is sequenced and connected in parallel with the last split pile which is sequenced and started latest;
and the execution module adjusts the output power of each split pile according to the output power increment or the associated power decrement of each split pile.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, through data analysis of the data analysis module, the preset management mode is selected through the electric energy distribution module according to an analysis result, and under the selected management module, the output power regulating quantity (namely output power increment or power decrement) of each split pile is determined through the mode to regulate the output power of the split pile, so that on one hand, the electric energy providing capacity of the power cabinet can be fully utilized, the charging speed of each electric automobile is improved, the charging efficiency is improved, the equipment can provide charging service for more electric automobiles, and good experience of customers is enhanced; on the other hand, the electric automobile which starts to be charged earlier can finish charging earlier, and the charging order of the electric automobile can be maintained better.
In one embodiment, the intelligent management terminal comprises a data collector and a microprocessor; the data acquisition unit is connected with a temperature sensor, and the temperature sensor is used for detecting the working temperature of the power supply cabinet or the split cabinet; the microprocessor carries out sectional management on the working temperature of the power cabinet or the split cabinet and carries out sectional statistics on the working time of the power cabinet or the split cabinet according to the temperature range;
a service life prediction model is arranged in the microprocessor, and the service life prediction model adopts the following formula to predict the residual service life of the power supply cabinet or the split cabinet:
Figure BDA0003675576480000101
in the above formula, T The residue is left Indicating the predicted remaining service life of the power cabinet or the split cabinet; t is 0 The design service life of the power supply cabinet or the split cabinet is shown, and is determined according to system design or experimental test; n represents the number of temperature range sections of the working temperature of the power supply cabinet or the split cabinet; k i The service life influence coefficient of the power cabinet or the split cabinet used in the ith temperature range section is related to factors such as the working temperature range and the use interval time of the power cabinet or the split cabinet, and is determined through test; t is i The service time of the power supply cabinet or the split cabinet in the ith temperature range section is represented;
and if the predicted residual service life of the power cabinet or the split cabinet is lower than a set threshold value, the intelligent management terminal sends out warning information.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the residual service life of the power supply cabinet or the split cabinet is predicted by setting the service life prediction model, the predicted residual service life is compared with a set threshold value, whether a warning needs to be sent or not is determined, and a user is reminded of the service life which can be supported by the power supply cabinet or the split cabinet under the condition that the safety is guaranteed, so that the user is reminded of replacing new equipment in time; the life influence coefficient of the power supply cabinet or the split cabinet within the specific working temperature range is introduced into the prediction formula, the quantitative influence of the difference of the use frequency and the temperature difference of the power supply cabinet or the split cabinet on the service life is fully considered, the prediction precision of the residual service life of the power supply cabinet or the split cabinet can be improved, the timely replacement of equipment is reminded, and the potential safety hazard caused by improper over-time use can be avoided.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (10)

1. The split charging pile for the electric automobile is characterized by comprising a power cabinet, a plurality of split piles and an intelligent management terminal;
the power supply cabinet is used for connecting a mains supply network and providing electric energy required by charging of the electric automobile;
the split piles are connected with the power cabinet and used for acquiring electric energy from the power cabinet and charging the electric energy into the electric automobile;
the intelligent management terminal is connected with the power cabinet and the split piles respectively, and is used for collecting first working data of the power cabinet and second working data of the split piles, processing and analyzing the first working data and the second working data, and selecting a preset management mode according to an analysis result to implement electric energy distribution and charging management.
2. The split charging pile for the orderly-charged electric vehicles according to claim 1, wherein the power cabinet is connected with an energy storage cabinet, and the energy storage cabinet is connected with an intelligent management terminal;
the battery pack in the energy storage cabinet can acquire electric energy from the power supply cabinet for charging and storing energy; when the mains supply network cannot supply power to the power cabinet, the battery pack in the energy storage cabinet supplies electric energy required by charging of the electric automobile to the power cabinet;
the intelligent management terminal detects the power supply condition of the mains supply network of the power cabinet and the energy storage condition of the battery pack and coordinates and controls the charging and discharging of the battery pack in the energy storage cabinet.
3. The split charging pile for the orderly-charged electric vehicles according to claim 1, wherein the intelligent management terminal comprises an alarm module, and the alarm module can send out alarm prompt information when the power cabinet and/or the split pile are abnormal.
4. The split charging pile for the orderly-charged electric vehicles according to claim 1, wherein the intelligent management terminal comprises a self-checking module, a fault diagnosis module and a repair module;
the self-checking module is used for regularly or irregularly detecting the states of the power cabinet and the split piles according to a preset mode;
the fault diagnosis module is used for diagnosing fault types according to the previous working conditions of the power cabinet and the split piles and the current state detection condition during fault;
and the repair module is used for selecting a repair scheme from the repair scheme library according to the fault type, repairing and eliminating the fault.
5. The split charging pile for the electric vehicles charged in sequence according to claim 1, wherein the intelligent management terminal comprises a communication module, and the communication module is used for connecting a network to realize remote communication;
the intelligent management terminal can be connected with the cloud management platform through the communication module, receives remote supervision of the cloud management platform and obtains software upgrading service from the cloud management platform.
6. The split charging pile for the electric vehicles capable of being charged in order according to claim 1, wherein the intelligent management terminal comprises a verification module and a data encryption module, and the data encryption module is used for encrypting data to be transmitted;
the verification module is used for performing identity verification when the cloud management platform is accessed through a network, and if the identity verification is unsuccessful, the cloud management platform is not allowed to be accessed, and if the identity verification is successful, the access operation can be performed under a preset authority.
7. The split charging pile for the electric vehicles capable of being charged in order according to claim 1, wherein the split pile is provided with a display screen, a card reader and an emergency button; the display screen is used for charging operation and charging data display when a user of the electric automobile charges; the card reader is used for sensing and reading a user card; the emergency button is used for stopping operation in emergency;
the intelligent management terminal comprises a display and an operation panel, wherein the display is used for working states and fault conditions of the power cabinet and the split piles; the operation panel is used for setting working parameters and selecting working modes.
8. The split charging pile for orderly charging electric vehicles according to claim 1, wherein the power cabinet and the split pile are equipped with a cooling device, and the cooling device comprises:
the refrigeration cycle subsystem comprises a compressor, a condenser, an expansion valve and a primary side of a heat exchanger which are connected in sequence by adopting a refrigerant pipe to form primary side refrigerant cycle;
the cooling liquid circulation subsystem comprises a circulating pump, a secondary side of the heat exchanger and a cooler which are connected in sequence in a pipeline circulation manner to form secondary side cooling liquid circulation; the cooler comprises a first cooler and a plurality of second coolers which are arranged in parallel, and the first cooler and the second coolers are respectively used for heat dissipation of the power cabinet and the split piles.
9. The split charging pile for the electric vehicles charged in order according to claim 8, wherein the intelligent management terminal comprises a data collector and a microprocessor;
the data acquisition unit is connected with a temperature sensor, a pressure sensor, a voltage measuring instrument and a current measuring instrument; the temperature sensors, the voltage measuring instruments and the current measuring instruments are multiple, and the temperature sensors are respectively used for measuring the ambient temperature, the temperature in the power cabinet, the temperature in the split piles and the temperature of the cooling liquid; the pressure sensor is used for measuring the pressure of the cooling liquid; the voltage measuring instrument and the current measuring instrument are respectively used for measuring the voltage and the current of the power cabinet and the split piles;
the microprocessor is connected with the data collector, a heat load calculation model is arranged in the microprocessor, and the microprocessor is used for processing and analyzing the collected data provided by the data collector, generating a control instruction and coordinating and controlling the operation of the power cabinet, the split piles and the cooling device; the heat load calculation model is used for calculating the heat load capacity of the power cabinet and the split piles in real time, and determining the running state of the cooling device and the flow of the cooling liquid distributed to the power cabinet and the split piles according to the total heat load.
10. The split charging pile for the electric vehicles charged in order according to claim 1, wherein the intelligent management terminal comprises a data analysis module, an electric energy distribution module and an execution module;
the data analysis module sorts the split piles currently charging the electric vehicle according to time sequence according to the charging start time data of the split piles in the second working data, and associates the sorting sequence with the output power of the corresponding split piles; calculating and determining the power margin of the power cabinet according to the first working data;
the electric energy distribution module carries out weight assignment on the split piles according to the sequence, the assignment takes the charging start time difference of the split piles in the adjacent sequence as a reference object, the weight value in the front sequence is large, and the weight value in the back sequence is small; then, the power allowance of the power cabinet is redistributed according to the weight value of each split pile, and the output power increment of each split pile is determined;
if the power cabinet has no power allowance and a newly added split pile for charging the electric automobile exists, the newly added split pile charges the electric automobile by adopting set initial output power, the initial output power is distributed according to the previous weight value to calculate each power decrement, the split piles are sorted from small to large according to the power decrements and are associated with the sorting sequence of the previous split piles, namely, the first minimum power decrement is connected with the first split pile which is earliest to start in sorting in parallel, and the second maximum power decrement is connected with the last split pile which is latest to start in sorting in parallel;
and the execution module adjusts the output power of each split pile according to the output power increment or the associated power decrement of each split pile.
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