CN112193096A - Distributed charging management system and management method for electric vehicle - Google Patents
Distributed charging management system and management method for electric vehicle Download PDFInfo
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- CN112193096A CN112193096A CN202011017219.4A CN202011017219A CN112193096A CN 112193096 A CN112193096 A CN 112193096A CN 202011017219 A CN202011017219 A CN 202011017219A CN 112193096 A CN112193096 A CN 112193096A
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- 238000000034 method Methods 0.000 claims abstract description 20
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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
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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
- B60L53/66—Data transfer between charging stations and vehicles
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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
- B60L53/67—Controlling two or more charging stations
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- 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
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- 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
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- 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
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- 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
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
A distributed charging management system for an electric vehicle comprises a charging station power supply electronic system and an electric vehicle power receiving electronic system; the charging station power supply subsystem comprises a plurality of charging piles, all the charging piles are in communication connection, and each charging pile comprises a charging gun; the electric vehicle power receiving subsystem comprises a plurality of charging sockets matched with the charging guns, the number of the charging sockets is smaller than or equal to the number of the charging piles, and all the charging sockets are electrically connected with a vehicle battery management unit. The invention provides a distributed charging management system and a distributed charging management method for an electric vehicle, which have the advantages of higher charging efficiency and simple and convenient use process.
Description
Technical Field
The invention relates to the technical field of electric vehicle charging, in particular to a distributed charging management system and a distributed charging management method for an electric vehicle.
Background
Along with the increase of the demand of the current electric automobile for the battery capacity, the battery capacity carried by the electric automobile is larger and larger, so that the charging time of the current charging system for the large-capacity electric automobile is greatly increased, and although a vehicle which is provided with two charging ports and charges simultaneously is arranged on the electric automobile in the current market, the electric automobile and the corresponding charging pile must be matched with each other, so that the electric automobile has certain limitation and cannot be popularized and applied in a large scale.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a distributed charging management system and a distributed charging management method for an electric vehicle, which have the advantages of higher charging efficiency and simple and convenient use process.
In order to achieve the purpose, the invention adopts the specific scheme that: a distributed charging management system for an electric vehicle comprises a charging station power supply electronic system and an electric vehicle power receiving electronic system; the charging station power supply subsystem comprises a plurality of charging piles, all the charging piles are in communication connection, and each charging pile comprises a charging gun; the electric vehicle power receiving subsystem comprises a plurality of charging sockets matched with the charging guns, the number of the charging sockets is smaller than or equal to the number of the charging piles, and all the charging sockets are electrically connected with a vehicle battery management unit.
As a further optimization of the above-described distributed charging management system for electric vehicles: fill electric pile and include the main control unit, all guns that charge pass through CAN bus communication connection, fill electric pile's CANH end and CANL end between electric connection have the regulating unit, the regulating unit is including the relay and the resistance of establishing ties, relay and main control unit electric connection.
A distributed charging management method for an electric vehicle is based on the distributed charging management system for the electric vehicle, and comprises the following steps:
s1, connecting one or more charging piles with the charging socket through the charging gun;
s2, designating the first charging pile which is connected as a master and designating the other charging piles which are connected as slaves;
s3, the host computer obtains the charging demand parameters from the vehicle battery management unit;
s4, the host machine distributes power to the host machine and the slave machine according to the charging demand parameters, and correspondingly sends power distribution results to the slave machine through the CAN bus;
and S5, supplying power to the charging socket through the charging gun by the host and the slave according to the power distribution result.
As a further optimization of the above-described distributed charging management method for an electric vehicle: the specific method of S2 includes:
s2.1, after the charging pile is connected with the charging socket, slave machine identification instructions are continuously sent to all the other charging piles through the CAN bus, and the charging pile enters a waiting state;
s2.2, replying a confirmation message after the connected charging pile receives a slave machine identification instruction sent by other charging piles;
s2.3, if the waiting time after the charging pile enters the waiting state exceeds a set threshold value, the charging pile still does not receive the confirmation message, the charging pile designates the charging pile as a host, and replies a host confirmation instruction after receiving slave identification instructions sent by other charging piles in the follow-up process;
and S2.4, determining the charging pile which is connected as a slave after receiving the host confirmation instruction.
As a further optimization of the above-described distributed charging management method for an electric vehicle: s2 further includes the steps of:
s2.5, after the master machine and the slave machine are determined, the master machine closes the relay in the adjusting unit of the master machine, and opens the relay in the adjusting unit of the slave machine.
As a further optimization of the above-described distributed charging management method for an electric vehicle: in S2.3, the duration threshold is 3S.
As a further optimization of the above-described distributed charging management method for an electric vehicle: in S3, the charge demand parameters include a charge demand power, a charge demand voltage, and a charge demand current.
As a further optimization of the above-described distributed charging management method for an electric vehicle: in S4, the specific method of performing power allocation is:
wherein, WoiIs the output power of the master or slave, WnPower requirement for charging, WmiAnd k is the maximum output power of the master machine or the slave machine, and the total number of the charging piles which are connected is determined.
Has the advantages that: according to the invention, a plurality of charging piles can be used for charging the electric automobile according to the number of the charging sockets carried on the electric automobile and the required charging power, namely, distributed charging is realized, the charging efficiency can be effectively improved, in addition, a proper connection mode can be flexibly selected according to the actual conditions during use, and the operation is simple and convenient.
Drawings
FIG. 1 is a block diagram of the overall architecture of the management system of the present invention;
FIG. 2 is a schematic view of the connection in the first embodiment;
FIG. 3 is a schematic view of the connection in the second embodiment;
fig. 4 is a schematic view of the connection mode in the third embodiment.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 invention.
Referring to fig. 1, a distributed charging management system for an electric vehicle includes a charging station power supply electronic system and an electric vehicle power receiving subsystem.
Charging station power supply subsystem includes a plurality of electric pile that fill to all fill electric pile communication connection, fill electric pile and include the rifle that charges.
The electric vehicle power receiving subsystem comprises a plurality of charging sockets matched with the charging guns, the number of the charging sockets is smaller than or equal to the number of the charging piles, and all the charging sockets are electrically connected with a vehicle battery management unit.
In this system, charging station power supply subsystem is used for providing the electric energy, and the parameter that fills electric pile can be the same also can be different for the difference, and electric motor car receives the electronic system and installs on electric automobile, and wherein the socket that charges is used for matching with the rifle that charges and obtains the electric energy from filling electric pile through the rifle that charges, and vehicle battery management unit can adopt the management module that electric automobile itself carried on for the charging parameter and the charging process of management electric automobile, belong to and be prior art. When using, can fill electric pile and the socket that charges correspond to be connected with part wherein through the rifle that charges, realize that the rifle that charges more charges simultaneously for the speed of charging, also can only use one to fill electric pile to satisfy current electric automobile's that only is provided with single socket that charges demand of charging.
Fill specific communication connection mode between the electric pile and do: fill electric pile and include the main control unit, all guns that charge pass through CAN bus communication connection, fill electric pile's CANH end and CANL end between electric connection have the regulating unit, the regulating unit is including the relay and the resistance of establishing ties, relay and main control unit electric connection. The main control unit can adopt the existing main control of the charging pile, for example, the main control of the charging pile of model GF-ECU-103 manufactured by Luo sunshine electric technology Limited company can be adopted. The regulating unit is used for controlling the terminal resistance of the CAN bus, and when a plurality of charging piles are connected simultaneously, whether the relay control resistance is electrified or not CAN be ensured, so that the terminal resistance of the CAN bus is maintained at 60 +/-5 omega, the problems of impedance mismatching and impedance discontinuity are solved, and the resistance value of the resistor is 120 omega.
A distributed charging management method for an electric vehicle based on the above-mentioned one includes S1 to S5.
And S1, connecting one or more charging piles with the charging socket through the charging gun. When connecting, can be according to electric automobile and fill the distance between the electric pile and select suitable connected mode, when the length of rifle line that charges satisfies the demand, can connect according to the order of filling electric pile and the order one-to-one of socket that charges, when rifle line length that charges can't satisfy the demand, can connect out of order, only need guarantee one fill electric pile and connect a socket that charges can.
And S2, designating the first charging pile which is connected as a master and designating the other charging piles which are connected as slaves. When using a plurality of electric pile that fill simultaneously, in order to avoid appearing mutual interference, distinguish the rifle that charges through the mode that sets up host computer and follow the computer and distinguish, manage all follow computers by the host computer, guarantee charging efficiency.
And S3, the host computer acquires the charging demand parameters from the vehicle battery management unit. Different electric automobile probably has the difference to the requirement of charging parameter, therefore the host computer needs obtain the demand parameter of charging from vehicle battery management unit to guarantee that the parameter of charging of final application satisfies electric automobile's demand, avoid appearing the parameter of charging and mismatch and cause electric automobile to damage.
And S4, the host machine performs power distribution on the host machine and the slave machine according to the charging demand parameters, and correspondingly sends the power distribution result to the slave machine through the CAN bus. Through power distribution, the host and the slave can be reasonably managed under the condition of meeting the charging requirement parameters, and charging with the highest charging efficiency is guaranteed.
And S5, supplying power to the charging socket through the charging gun by the host and the slave according to the power distribution result.
Specific methods of S2 include S2.1 to S2.4.
S2.1, after the charging pile is connected with the charging socket, slave machine identification instructions are continuously sent to all the other charging piles through the CAN bus, and the charging pile enters a waiting state.
And S2.2, replying a confirmation message after the charging pile which is connected receives the slave machine identification command sent by other charging piles.
And S2.3, if the waiting time after the charging pile enters the waiting state exceeds a set threshold value, the charging pile still does not receive the confirmation message, the charging pile designates the charging pile as a host, and replies a host confirmation instruction after receiving slave identification instructions sent by other charging piles in the follow-up process.
And S2.4, determining the charging pile which is connected as a slave after receiving the host confirmation instruction.
In S2, since there is a certain sequence and there is a time difference between the two connection processes in the process of connecting the charging piles with the charging socket by the user, after the first charging pile completes the connection and sends the slave identification command, the first charging pile does not receive the confirmation message within a certain time because the other charging piles have not completed the connection, and the charging pile can set itself as the master, and the subsequent charging piles receive the slave identification command sent by the master after completing the connection, and set itself as the slave and return the confirmation message, and because the slave also sends the slave identification command when completing the connection, the master needs to return the master confirmation command after receiving the slave identification command sent by the slave, so that the slave can terminate the sending process of the slave identification command to avoid network congestion, in addition, the slave may automatically terminate the transmission process of the slave identification command after determining itself as the slave. According to the actual space condition of charging station and the mounted position who fills electric pile, long threshold value can rationally set up, in this embodiment, long threshold value sets up to 3s for long, if fill electric pile surrounding space less for it is inconvenient to remove, long threshold value can prolong to 10s longest.
S2 also includes S2.5.
S2.5, after the master and the slave are determined, the master closes the relay in the regulating unit of the master and opens the relay in the regulating unit of the slave. After the host and the slave are determined, networking is completed through the CAN bus, and the relay is controlled to control the terminal resistance of the CAN bus so as to ensure that the CAN bus CAN normally communicate.
In S3, the charge demand parameters include a charge demand power, a charge demand voltage, and a charge demand current. The charging demand power is a core parameter, a power distribution mode is determined, and the charging demand voltage and the charging demand current can be determined according to the actual demand of the electric automobile or the current standard.
In S4, the specific method of performing power allocation is:
wherein, WoiIs the output power of the master or slave, WnPower requirement for charging, WmiAnd k is the maximum output power of the master machine or the slave machine, and the total number of the charging piles which are connected is determined. When all the charging piles are the same, the charging powers of the host and the slave are the same, namely the charging powers of all the charging piles which are connected are evenly distributed, when the charging piles are not completely the same, the charging powers of the host and the slave are not completely the same, the charging piles are distributed according to the maximum output power of the charging piles in proportion, and the application range is wider.
Several specific examples are provided below to further describe the present invention.
In the first embodiment, as shown in fig. 2, the power supply subsystem of the charging station includes ten charging piles, the power receiving subsystem of the electric vehicle includes ten charging sockets, all the charging piles and the charging sockets are connected in sequence in a one-to-one correspondence manner, and first, the charging pile 1 and the charging socket 1 are connected. After the circuit connection between the charging pile and the vehicle is completed, the charging pile 1 identifies the number and the state of the slave charging gun lines currently connected to the vehicle according to the slave identification instruction on the CAN bus. After the number and the states of the slave machines are obtained, the charging pile 1 starts charging, the charging pile 1 obtains required voltage and current data according to communication with a vehicle battery management system, and dynamically adjusts output charging power of the master machine and the slave machines according to the number and the states of the slave machines connected to the vehicle at present, so that the vehicle can be charged quickly.
In the second embodiment, as shown in fig. 3, the charging station power supply subsystem includes ten charging piles, and the electric vehicle power receiving subsystem includes ten charging sockets, and the charging gun line 3 is first inserted into the vehicle charging socket 1, the charging gun line 1 is next inserted into the vehicle charging socket 2, the charging gun line 2 is next inserted into the vehicle charging socket 3, the charging gun line 4 is next inserted into the vehicle charging socket 8, and the charging gun line 5 is next inserted into the vehicle charging socket 6, so that the circuit connection of vehicle charging is completed. After the circuit connection between the charging pile and the vehicle is completed, the charging pile 3 identifies the number and the state of the slave charging gun lines currently connected to the vehicle according to the slave identification instruction on the CAN bus. After the number and the states of the slave machines are obtained, the charging pile 3 starts charging, the charging pile 3 obtains required voltage and current data according to communication with a vehicle battery management system, and the output charging power of the master machine and the slave machines is dynamically adjusted according to the number and the states of the slave machines connected to the vehicle at present, so that the vehicle is rapidly charged.
In a third embodiment, as shown in fig. 4, the charging station power supply subsystem includes ten charging piles, the electric vehicle power receiving subsystem includes ten charging sockets, the charging gun line 4 is first inserted into the vehicle charging socket 1, the charging gun line 5 is next inserted into the vehicle charging socket 2, the charging gun line 3 is next inserted into the vehicle charging socket 3, the charging gun line 2 is next inserted into the vehicle charging socket 4, and the charging gun line 1 is next inserted into the vehicle charging socket 5, so that the circuit connection of vehicle charging is completed. After the circuit connection between the charging pile and the vehicle is completed, the charging pile 4 identifies the number and the state of the slave charging gun lines currently connected to the vehicle according to the slave identification instruction on the CAN bus. After the number and the states of the slave machines are obtained, the charging pile 4 starts charging, the charging pile 4 obtains required voltage and current data according to communication with a vehicle battery management system, and the output charging power of the master machine and the slave machines is dynamically adjusted according to the number and the states of the slave machines connected to the vehicle at present, so that the vehicle is rapidly charged.
According to the three embodiments, the number of the charging piles and the connection sequence of the electric automobile and the charging piles can be flexibly selected according to actual conditions when the charging pile is used, and the charging pile is flexible to operate, simple and convenient to use. In other embodiments of the present invention, the number of charging posts and charging sockets may be increased or decreased according to actual needs.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A distributed charging management system for an electric vehicle is characterized by comprising a charging station power supply electronic system and an electric vehicle power receiving electronic system;
the charging station power supply subsystem comprises a plurality of charging piles, all the charging piles are in communication connection, and each charging pile comprises a charging gun;
the electric vehicle power receiving subsystem comprises a plurality of charging sockets matched with the charging guns, the number of the charging sockets is smaller than or equal to the number of the charging piles, and all the charging sockets are electrically connected with a vehicle battery management unit.
2. The distributed charging management system for electric vehicles according to claim 1, wherein the charging pile comprises a main control unit, all charging guns are connected through CAN bus communication, an adjusting unit is electrically connected between CANH end and CANL end of the charging pile, the adjusting unit comprises a relay and a resistor which are connected in series, and the relay is electrically connected with the main control unit.
3. A distributed charging management method for an electric vehicle based on the distributed charging management system for an electric vehicle according to claim 2, characterized by comprising the steps of:
s1, connecting one or more charging piles with the charging socket through the charging gun;
s2, designating the first charging pile which is connected as a master and designating the other charging piles which are connected as slaves;
s3, the host computer obtains the charging demand parameters from the vehicle battery management unit;
s4, the host machine distributes power to the host machine and the slave machine according to the charging demand parameters, and correspondingly sends power distribution results to the slave machine through the CAN bus;
and S5, supplying power to the charging socket through the charging gun by the host and the slave according to the power distribution result.
4. The method of claim 3, wherein the specific method of S2 includes:
s2.1, after the charging pile is connected with the charging socket, slave machine identification instructions are continuously sent to all the other charging piles through the CAN bus, and the charging pile enters a waiting state;
s2.2, replying a confirmation message after the connected charging pile receives a slave machine identification instruction sent by other charging piles;
s2.3, if the waiting time after the charging pile enters the waiting state exceeds a set threshold value, the charging pile still does not receive the confirmation message, the charging pile designates the charging pile as a host, and replies a host confirmation instruction after receiving slave identification instructions sent by other charging piles in the follow-up process;
and S2.4, determining the charging pile which is connected as a slave after receiving the host confirmation instruction.
5. The method of claim 4, wherein S2 further comprises the steps of:
s2.5, after the master machine and the slave machine are determined, the master machine closes the relay in the adjusting unit of the master machine, and opens the relay in the adjusting unit of the slave machine.
6. The method of claim 5, wherein in S2.3, the duration threshold is 3S.
7. The method according to claim 3, wherein the charge demand parameters include a charge demand power, a charge demand voltage, and a charge demand current in S3.
8. The method of claim 7, wherein in S4, the specific method for performing power allocation is:
wherein, WoiIs the output power of the master or slave, WnPower requirement for charging, WmiAnd k is the maximum output power of the master machine or the slave machine, and the total number of the charging piles which are connected is determined.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113381471A (en) * | 2021-05-26 | 2021-09-10 | 深圳市德兰明海科技有限公司 | Control method and device for output limit value of charger and battery energy storage system |
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| CN113381471A (en) * | 2021-05-26 | 2021-09-10 | 深圳市德兰明海科技有限公司 | Control method and device for output limit value of charger and battery energy storage system |
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