WO2023029335A1 - 一种光储充系统的参数配置方法及终端 - Google Patents
一种光储充系统的参数配置方法及终端 Download PDFInfo
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- WO2023029335A1 WO2023029335A1 PCT/CN2022/070034 CN2022070034W WO2023029335A1 WO 2023029335 A1 WO2023029335 A1 WO 2023029335A1 CN 2022070034 W CN2022070034 W CN 2022070034W WO 2023029335 A1 WO2023029335 A1 WO 2023029335A1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/50—Charging stations characterised by energy-storage or power-generation means
- B60L53/51—Photovoltaic means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/50—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
-
- 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
- B60L53/62—Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
-
- 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
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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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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering with light sensitive cells
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
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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
Definitions
- the invention relates to the field of new energy technology, in particular to a parameter configuration method and a terminal of an optical storage and charging system.
- the technical problem to be solved by the present invention is to provide a parameter configuration method and terminal of an optical storage and charging system, which can improve the accuracy of parameter configuration.
- a method for configuring parameters of an optical storage and charging system comprising the steps of:
- the sum of the mains power converted by the energy storage converter in the optical storage charging system, the maximum input and output power of the energy storage system, and the output power of the photovoltaic system is greater than or equal to the output power of the bidirectional DC converter connected to the charging pile;
- the output power of the photovoltaic system prefferably configuring the output power of the photovoltaic system to be less than the mains power and less than the maximum input and output power of the energy storage system;
- the charging demand sent by the vehicle to the charging pile is received, and the commercial power converted by the energy storage converter or the energy storage system or the photovoltaic system is provided for charging according to the charging quantity parameters in the charging demand.
- a parameter configuration terminal for an optical storage and charging system comprising a memory, a processor, and a computer program stored on the memory and operable on the processor, and the processor implements the following steps when executing the computer program:
- the sum of the mains power converted by the energy storage converter in the optical storage charging system, the maximum input and output power of the energy storage system, and the output power of the photovoltaic system is greater than or equal to the output power of the bidirectional DC converter connected to the charging pile;
- the output power of the photovoltaic system prefferably configuring the output power of the photovoltaic system to be less than the mains power and less than the maximum input and output power of the energy storage system;
- the charging demand sent by the vehicle to the charging pile is received, and the commercial power converted by the energy storage converter or the energy storage system or the photovoltaic system is provided for charging according to the charging quantity parameters in the charging demand.
- the beneficial effect of the present invention is that: the sum of the maximum input and output power of the configured mains power, the energy storage system, and the output power of the photovoltaic system is greater than or equal to the output power of the bidirectional DC converter, so it can support the output power of the charging pile when it is fully loaded, ensuring The system can operate normally when the charging pile is fully loaded; by configuring the output power of the photovoltaic system to be less than the maximum input and output power of the energy storage system, it is convenient to store the electricity of the photovoltaic system to the energy storage system to ensure the safety performance of the energy storage system; by configuring the photovoltaic system
- the output power is smaller than the mains power, which is convenient to reversely output the power to the components in the grid through the energy storage converter for power supply, so as to reasonably configure the parameters of the optical storage charging system; receive the charging demand sent by the vehicle to the charging pile, and according to the charging demand
- the charging power parameter in the parameter provides the corresponding charging method, thereby improving the accuracy of parameter configuration.
- Fig. 1 is a flowchart of a parameter configuration method of an optical storage and charging system according to an embodiment of the present invention
- FIG. 2 is a schematic diagram of a parameter configuration terminal of an optical storage and charging system according to an embodiment of the present invention
- Fig. 3 is a topological diagram of the optical storage and charging system of a parameter configuration method of the optical storage and charging system according to the embodiment of the present invention
- Fig. 4 is a power ratio diagram of a parameter configuration method of an optical storage and charging system according to an embodiment of the present invention.
- Fig. 5 is a parameter configuration diagram of a parameter configuration method of an optical storage and charging system according to an embodiment of the present invention.
- the embodiment of the present invention provides a parameter configuration method of an optical storage and charging system, including steps:
- the sum of the mains power converted by the energy storage converter in the optical storage charging system, the maximum input and output power of the energy storage system, and the output power of the photovoltaic system is greater than or equal to the output power of the bidirectional DC converter connected to the charging pile;
- the output power of the photovoltaic system prefferably configuring the output power of the photovoltaic system to be less than the mains power and less than the maximum input and output power of the energy storage system;
- the charging demand sent by the vehicle to the charging pile is received, and the commercial power converted by the energy storage converter or the energy storage system or the photovoltaic system is provided for charging according to the charging quantity parameters in the charging demand.
- the beneficial effect of the present invention lies in that the sum of the maximum input and output power of the configured mains power, the energy storage system, and the output power of the photovoltaic system is greater than or equal to the output power of the bidirectional DC converter, so it can support the charging pile when it is fully loaded.
- the output power of the photovoltaic system to ensure that the system can operate normally when the charging pile is fully loaded; by configuring the output power of the photovoltaic system to be less than the maximum input and output power of the energy storage system, it is convenient to store the electricity of the photovoltaic system into the energy storage system to ensure the safety performance of the energy storage system ;By configuring the output power of the photovoltaic system to be less than the power of the mains, it is convenient to reversely output the power to the components in the grid through the energy storage converter for power supply, so as to reasonably configure the parameters of the solar storage charging system; receive the charging sent by the vehicle to the charging pile According to the charging demand, the corresponding charging method is provided according to the charging power parameters in the charging demand, so as to improve the accuracy of parameter configuration.
- the output power of the photovoltaic system after configuring the output power of the photovoltaic system to be smaller than the utility power and smaller than the maximum input and output power of the energy storage system includes:
- the power of the photovoltaic system is output to the energy storage converter, and the power is reversed by the energy storage converter Supply power to components in the output grid.
- the charging pile stops charging the vehicle, the excess electricity will be stored in the energy storage system. Since the output power of the photovoltaic system is less than the maximum input and output power of the energy storage system, the safety performance of the energy storage system can be guaranteed; if The charging pile stops charging the vehicle and the energy storage system has been charged, and the power is reversely output to the components in the grid through the energy storage converter for power supply. Since the output power of the photovoltaic system is less than the power of the mains power, the power in the photovoltaic system can be guaranteed All are released, so as to reasonably configure the parameters of the optical storage and charging system.
- the commercial power converted by the energy storage converter is configured to be less than or equal to half of the maximum input and output power of the energy storage system.
- the utility power when the utility power is charging the energy storage system, the utility power is less than or equal to half of the maximum input and output power of the energy storage system, which can effectively improve the life of the energy storage system.
- the charging demand sent by the receiving vehicle to the charging pile includes:
- a discharge circuit is used for the charging pile to discharge energy, and a charging communication handshake message is periodically sent to the vehicle.
- the insulation test is first performed on the charging pile, and after the test is completed, the remaining energy is discharged by using the discharge circuit, and the charging communication handshake message is periodically sent to the vehicle, so that Ensure the security of the equipment.
- providing the utility power converted by the energy storage converter or the energy storage system or the photovoltaic system for charging according to the charging power parameter in the charging demand includes:
- the charging power is less than the power threshold, determine whether the charging power is greater than the output power of the photovoltaic system, and if so, use the commercial power and the photovoltaic system to supply power to the charging pile and the energy storage system, Otherwise, using the photovoltaic system to supply power to the charging pile and the energy storage system;
- the charging power is greater than or equal to the power threshold, determine whether the charging power is greater than the sum of the maximum input and output power of the energy storage system and the output power of the photovoltaic system, and if so, use the commercial power, energy storage system and photovoltaic system to supply power to the charging pile, otherwise, use the energy storage system and photovoltaic system to supply power to the charging pile.
- the charging power required to be output by the charging pile is calculated according to the charging quantity parameters of each vehicle connected to the charging pile.
- the charging power is greater than or equal to the power threshold, and the charging pile is powered by the mains power, energy storage system and photovoltaic system, so the charging method can be flexibly adjusted based on the charging power output by the charging pile, so as to reasonably adjust the power of each device Allocation control.
- FIG. 2 another embodiment of the present invention provides a parameter configuration terminal for an optical storage and charging system, including a memory, a processor, and a computer program stored in the memory and operable on the processor.
- a parameter configuration terminal for an optical storage and charging system including a memory, a processor, and a computer program stored in the memory and operable on the processor.
- the sum of the mains power converted by the energy storage converter in the optical storage charging system, the maximum input and output power of the energy storage system, and the output power of the photovoltaic system is greater than or equal to the output power of the bidirectional DC converter connected to the charging pile;
- the output power of the photovoltaic system prefferably configuring the output power of the photovoltaic system to be less than the mains power and less than the maximum input and output power of the energy storage system;
- the charging demand sent by the vehicle to the charging pile is received, and the commercial power converted by the energy storage converter or the energy storage system or the photovoltaic system is provided for charging according to the charging quantity parameters in the charging demand.
- the sum of the configured mains power, the maximum input and output power of the energy storage system and the output power of the photovoltaic system is greater than or equal to the output power of the bidirectional DC converter, so it can support the output power of the charging pile when it is fully loaded, ensuring that the system is The charging pile can operate normally when the charging pile is fully loaded; by configuring the output power of the photovoltaic system to be less than the maximum input and output power of the energy storage system, it is convenient to store the electricity of the photovoltaic system to the energy storage system to ensure the safety performance of the energy storage system; by configuring the output power of the photovoltaic system The power is smaller than the power of the mains, so that the power can be reversely output to the components in the grid through the energy storage converter for power supply, so as to reasonably configure the parameters of the optical storage charging system; receive the charging demand sent by the vehicle to the charging pile, and according to the charging demand The charging power parameter provides the corresponding charging method, thereby improving the accuracy of parameter configuration.
- the output power of the photovoltaic system after configuring the output power of the photovoltaic system to be smaller than the utility power and smaller than the maximum input and output power of the energy storage system includes:
- the power of the photovoltaic system is output to the energy storage converter, and the power is reversed by the energy storage converter Supply power to components in the output grid.
- the charging pile stops charging the vehicle, the excess electricity will be stored in the energy storage system. Since the output power of the photovoltaic system is less than the maximum input and output power of the energy storage system, the safety performance of the energy storage system can be guaranteed; if The charging pile stops charging the vehicle and the energy storage system has been charged, and the power is reversely output to the components in the grid through the energy storage converter for power supply. Since the output power of the photovoltaic system is less than the power of the mains power, the power in the photovoltaic system can be guaranteed All are released, so as to reasonably configure the parameters of the optical storage and charging system.
- the commercial power converted by the energy storage converter is configured to be less than or equal to half of the maximum input and output power of the energy storage system.
- the utility power when the utility power is charging the energy storage system, the utility power is less than or equal to half of the maximum input and output power of the energy storage system, which can effectively improve the life of the energy storage system.
- the charging demand sent by the receiving vehicle to the charging pile includes:
- a discharge circuit is used for the charging pile to discharge energy, and a charging communication handshake message is periodically sent to the vehicle.
- the insulation test is first performed on the charging pile, and after the test is completed, the remaining energy is discharged by using the discharge circuit, and the charging communication handshake message is periodically sent to the vehicle, so that Ensure the security of the equipment.
- providing the utility power converted by the energy storage converter or the energy storage system or the photovoltaic system for charging according to the charging power parameter in the charging demand includes:
- the charging power is less than the power threshold, determine whether the charging power is greater than the output power of the photovoltaic system, and if so, use the commercial power and the photovoltaic system to supply power to the charging pile and the energy storage system, Otherwise, using the photovoltaic system to supply power to the charging pile and the energy storage system;
- the charging power is greater than or equal to the power threshold, determine whether the charging power is greater than the sum of the maximum input and output power of the energy storage system and the output power of the photovoltaic system, and if so, use the commercial power, energy storage system and photovoltaic system to supply power to the charging pile, otherwise, use the energy storage system and photovoltaic system to supply power to the charging pile.
- the charging power required to be output by the charging pile is calculated according to the charging quantity parameters of each vehicle connected to the charging pile.
- the charging power is greater than or equal to the power threshold, and the charging pile is powered by the mains power, energy storage system and photovoltaic system, so the charging method can be flexibly adjusted based on the charging power output by the charging pile, so as to reasonably adjust the power of each device Allocation control.
- a parameter configuration method and terminal of an optical storage and charging system of the present invention are suitable for configuring reasonable charging power, energy storage power and photovoltaic systems for the optical storage and charging system, and improving the accuracy of parameter configuration.
- the following is carried out through specific implementation methods illustrate:
- the sum of the mains power converted by the energy storage converter in the optical storage charging system, the maximum input and output power of the energy storage system, and the output power of the photovoltaic system is greater than or equal to the output power of the bidirectional DC converter connected to the charging pile. .
- the hardware of the photovoltaic storage and charging system consists of a power storage converter (PCS), a battery energy storage system, a DC intelligent charging system and a photovoltaic power generation system. All hardware is uniformly dispatched and controlled by the energy management system (EMS).
- EMS energy management system
- the specific hardware content of the optical storage and charging system is as follows:
- Energy storage converter communicate with the battery management system (BMS), manage the charging and discharging of the battery energy storage system, accept the energy deployment and control protection of the EMS;
- BMS battery management system
- Battery energy storage system It is composed of safe and reliable lithium iron phosphate batteries connected in series and parallel, with sampling modular design, each module is connected in series and parallel to form an energy storage system, and the supporting battery management system performs data acquisition, control and protection of the battery;
- DC intelligent charging system It consists of a bidirectional isolated DC converter and a split charging pile. Configure 6 split charging piles:
- the bidirectional isolated DC converter is the power module of the DC intelligent charging system, which can charge electric vehicles with high power to achieve the purpose of fast charging;
- Split charging pile As the charging control unit of the intelligent charging system, it has the functions of electric energy measurement and insulation detection, and has communication interfaces with electric vehicle BMS, bidirectional DC converter, and EMS;
- Photovoltaic controller It is one of the core equipments that make up the DC photovoltaic power generation system, with MPPT (Maximum Power Point Tracking, the maximum power point tracking control solar controller), can realize high-efficiency DC/DC conversion, convert the DC energy output by photovoltaic modules into a voltage that matches the DC bus of the energy storage system, and store green energy in the energy storage system Or use it directly for loads to realize high-efficiency utilization of photovoltaic power generation.
- the photovoltaic controller accepts the charging control of the battery system BMS, and accepts the management and scheduling of the EMS.
- EMS Energy management system
- the energy storage converter converts the mains power A, the maximum output and input power of the battery energy storage system B, the output power of the photovoltaic system D, and the external output power C of the charging system, which needs to meet: A+B +D ⁇ C, so photovoltaic power + battery power + energy storage converter power can support the output power when the charging pile is fully loaded, ensuring that the system can operate normally when the charging pile is fully loaded.
- configuring the output power of the photovoltaic system to be smaller than the utility power and smaller than the maximum input and output power of the energy storage system includes:
- the power of the photovoltaic system is output to the energy storage converter, and the power is reversed by the energy storage converter Supply power to components in the output grid.
- the parameter configuration needs to satisfy D ⁇ A and D ⁇ B, so when the photovoltaic system continues to generate power and the power of the charging pile cannot be consumed, the photovoltaic system can be used to supplement the battery energy storage system; When the photovoltaic system continues to generate electricity, and the battery energy storage system cannot absorb it, and the charging pile cannot consume it, the energy storage converter can be used to reversely output the power to the grid for photovoltaic grid-connection and reverse power supply for components in the local area network.
- the photovoltaic system is equipped with a photovoltaic controller with MPPT tracking function to achieve high-efficiency conversion.
- Photovoltaic modules convert solar energy into DC power, which can be directly charged for electric vehicles through DC converters and charging piles, and excess power is stored in the energy storage system through energy storage inverters.
- the AC photovoltaic sub-system can accept the energy scheduling of the EMS energy management system to ensure the maximum utilization of energy.
- the commercial power converted by the energy storage converter is configured to be less than or equal to half of the maximum input and output power of the energy storage system.
- the parameter configuration needs to satisfy A ⁇ 0.5*B, so when charging the battery energy storage system with commercial power, the charge rate is 0.5C (C represents the battery discharge current/charge current, that is, the battery charge The ratio of the current size during discharge), compared with the charging rate of 1C, can effectively improve the life of the battery energy storage system.
- a discharge circuit is used for the charging pile to discharge energy, and a charging communication handshake message is periodically sent to the vehicle.
- the charging pile controller judges whether the charging socket is connected, and locks the electronic lock to prevent the gun head from falling off; enters the self-inspection stage, the low-voltage auxiliary power supply circuit is turned on, and the electric vehicle control device Power supply, insulation monitoring; after the detection is completed, the discharge circuit will be put into discharge energy, and at the same time, the communication handshake message will be sent periodically;
- the vehicle After entering the charging stage, the vehicle sends the parameters of the battery charging demand to the charging pile controller in real time.
- the parameters include: the maximum allowable charging voltage of a single battery cell, the maximum allowable total charging voltage of the power battery system, the maximum allowable charging current of the power battery system, and the maximum allowable charging current of a single battery cell.
- the energy storage system will adjust the output charging voltage and current in real time according to this parameter, and send their respective status information to each other.
- the charging power required by the vehicle will be stepped down from the battery energy storage system or the energy storage converter to the appropriate voltage for the vehicle through a bidirectional DC converter.
- the charging voltage can be charged; and the charging information can be uploaded to EMS, cloud platform and mobile phone APP/small program.
- the vehicle judges whether it is fully charged according to the internal logic of the BMS, and sends this message to the controller to execute the command to end charging
- Embodiment 1 The difference between this embodiment and Embodiment 1 is that it further defines how to provide a corresponding charging method according to the charging power parameters, specifically:
- the charging power is less than the power threshold, determine whether the charging power is greater than the output power of the photovoltaic system, and if so, use the commercial power and the photovoltaic system to supply power to the charging pile and the energy storage system, Otherwise, using the photovoltaic system to supply power to the charging pile and the energy storage system;
- the charging power is greater than or equal to the power threshold, determine whether the charging power is greater than the sum of the maximum input and output power of the energy storage system and the output power of the photovoltaic system, and if so, use the commercial power, energy storage system and photovoltaic system to supply power to the charging pile, otherwise, use the energy storage system and photovoltaic system to supply power to the charging pile.
- the photovoltaic storage and charging system can use a variety of operating modes, the main mode is that the mains, the battery energy storage system and the photovoltaic system supply power to the charging pile; where the photovoltaic power refers to the maximum output power of photovoltaics, such as the above-mentioned photovoltaic
- the power of 250kW means that the maximum photovoltaic output power is 250kW, and because of the different sunlight intensity, the output power of the photovoltaic system changes in real time at every moment.
- the mains power converted by the energy storage converter is 250kW
- the maximum input and output power of the battery energy storage system is 500kWh
- the output power of the photovoltaic system is 200kW
- the power threshold is 500kW
- the battery energy storage system and the charging pile are powered by photovoltaic modules;
- the battery energy storage system and charging pile are powered by photovoltaic modules and mains power;
- the charging pile is powered by the battery energy storage system and photovoltaic system;
- the charging pile When the required power of the charging pile is >500kW+200kW, the charging pile is powered by the mains, battery energy storage system and photovoltaic system.
- the output power of the photovoltaic system is small. At this time, in order to give priority to meeting the power required by the charging pile, the charging pile is powered by the mains and energy storage. .
- the entire power distribution is controlled by the EMS system to coordinate the power of each component. Therefore, configuring a reasonable number of charging piles and charging power can ensure that the charging power demand of the vehicle is met and the rotation rate of the station is guaranteed.
- a parameter configuration terminal of an optical storage and charging system including a memory, a processor, and a computer program stored on the memory and operable on the processor.
- the processor executes the computer program, it realizes Various steps of a method for configuring parameters of an optical storage and charging system according to Embodiment 1 or 2.
- the present invention provides a parameter configuration method and terminal for an optical storage and charging system.
- the sum of the configured mains power, the maximum input and output power of the energy storage system, and the output power of the photovoltaic system is greater than or equal to that of the bidirectional DC converter.
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Abstract
本发明公开了一种光储充系统的参数配置方法及终端,配置市电功率与储能系统的最大输入输出功率与光伏系统的输出功率之和大于或者等于双向直流变换器的输出功率,因此能够支撑充电桩满载时的输出功率,确保系统在充电桩满载时能够正常运行;通过配置光伏系统的输出功率小于储能系统的最大输入输出功率,便于将光伏系统电量存储至储能系统,保证储能系统的安全性能;通过配置光伏系统的输出功率小于市电功率,便于通过储能变流器将功率反向输出给电网内的部件进行供电,从而合理配置光储充系统的参数;接收车辆向充电桩发送的充电需求,根据充电需求中的充电电量参数提供对应的充电方式,从而提高参数配置的准确性。
Description
本发明涉及新能源技术领域,特别涉及一种光储充系统的参数配置方法及终端。
随着电动汽车快速发展,一是新能源电动汽车数量的增长,二是对新能源电动汽车充电技术的迭代,充电时间缩短即充电功率增加。对电力配网压力会越来越大。而传统充电设施是采用交流充电或者交直流充电,对电网配电容量要求高,且无法对电网峰谷能量进行调配。
使用大功率的直流充电设备配合储能电池和光伏系统对电网进行直流扩容,打造光储充一体系统,提高充电功率和降低电网配电容量要求已经成为一种趋势。为了维持光储充系统的稳定运行,不对电网造成干扰,确保用户每辆车都能够正常的充电,光储充系统难以配置合理的充电功率、储能电量和光伏系统,且光储充系统的配置参数的准确性较低。
本发明所要解决的技术问题是:提供一种光储充系统的参数配置方法及终端,能够提高参数配置的准确性。
为了解决上述技术问题,本发明采用的技术方案为:
一种光储充系统的参数配置方法,包括步骤:
配置光储充系统中储能变流器转换得到的市电功率与储能系统的最大输入输出功率与光伏系统的输出功率之和大于或者等于与充电桩连接的双向直流变换器的输出功率;
配置所述光伏系统的输出功率小于所述市电功率且小于所述储能系统的最大输入输出功率;
接收车辆向所述充电桩发送的充电需求,根据所述充电需求中的充电电量参数提供所述储能变流器转换得到的市电或者所述储能系统或者所述光伏系统进行充电。
为了解决上述技术问题,本发明采用的另一种技术方案为:
一种光储充系统的参数配置终端,包括存储器、处理器以及存储在所述存储器上并可在处理器上运行的计算机程序,所述处理器执行所述计算机程序时实现以下步骤:
配置光储充系统中储能变流器转换得到的市电功率与储能系统的最大输入输出功率与光伏系统的输出功率之和大于或者等于与充电桩连接的双向直流变换器的输出功率;
配置所述光伏系统的输出功率小于所述市电功率且小于所述储能系统的最大输入输出功率;
接收车辆向所述充电桩发送的充电需求,根据所述充电需求中的充电电量参数提供所述储能变流器转换得到的市电或者所述储能系统或者所述光伏系统进行充电。
本发明的有益效果在于:配置市电功率与储能系统的最大输入输出功率与光伏系统的输出功率之和大于或者等于双向直流变换器的输出功率,因此能够支撑充电桩满载时的输出功率,确保系统在充电桩满载时能够正常运行;通过配置光伏系统的输出功率小于储能系统的最大输入输出功率,便于将光伏系统电量存储至储能系统,保证储能系统的安全性能;通过配置光伏系统的输出功率小于市电功率,便于通过储能变流器将功率反向输出给电网内的部件进行供电,从而合理配置光储充系统的参数;接收车辆向充电桩发送的充电需求,根据充电需求中的充电电量参数提供对应的充电方式,从而提高参数配置的准确性。
图1为本发明实施例的一种光储充系统的参数配置方法的流程图;
图2为本发明实施例的一种光储充系统的参数配置终端的示意图;
图3为本发明实施例的一种光储充系统的参数配置方法的光储充系统拓扑图;
图4为本发明实施例的一种光储充系统的参数配置方法的功率配比图;
图5为本发明实施例的一种光储充系统的参数配置方法的参数配置图。
为详细说明本发明的技术内容、所实现目的及效果,以下结合实施方式并配合附图予以说明。
请参照图1、图3至图5,本发明实施例提供了一种光储充系统的参数配置方法,包括步骤:
配置光储充系统中储能变流器转换得到的市电功率与储能系统的最大输入输出功率与光伏系统的输出功率之和大于或者等于与充电桩连接的双向直流变换器的输出功率;
配置所述光伏系统的输出功率小于所述市电功率且小于所述储能系统的最大输入输出功率;
接收车辆向所述充电桩发送的充电需求,根据所述充电需求中的充电电量参数提供所述储能变流器转换得到的市电或者所述储能系统或者所述光伏系统进行充电。
从上述描述可知,本发明的有益效果在于:配置市电功率与储能系统的最大输入输出功率与光伏系统的输出功率之和大于或者等于双向直流变换器的输出功率,因此能够支撑充电桩满载时的输出功率,确保系统在充电桩满载时能够正常运行;通过配置光伏系统的输出功率小于储能系统的最大输入输出功率,便于将光伏系统电量存储至储能系统,保证储能系统的安全性能;通过配置光伏系统的输出功率小于市电功率,便于通过储能变流器将功率反向输出给电网内的部件进行供电,从而合理配置光储充系统的参数;接收车辆向充电桩发送的充电需求,根据充电需求中的充电电量参数提供对应的充电方式,从而提高参数配置的准确性。
进一步地,配置所述光伏系统的输出功率小于所述市电功率且小于所述储能系统的最大输入输出功率之后包括:
若所述充电桩停止向车辆充电,则将所述光伏系统的功率输出至所述储能系统;
若所述充电桩停止向所述车辆充电且所述储能系统已充电完成,则将所述光伏系统的功率输出至所述储能变流器,通过所述储能变流器将功率反向输出给电网内的部件进行供电。
由上述描述可知,若充电桩停止向车辆充电,则将多余的电量存储至储能系统,由于光伏系统的输出功率小于储能系统的最大输入输出功率,能够保证储能系统的安全性能;若充电桩停止向车辆充电且储能系统已充电完成,通过储能变流器将功率反向输出给电网内的部件进行供电,由于光伏系统的输出功率小于市电功率,能够保证光伏系统中的功率全部释放出去,从而合理配置光储充系统的参数。
进一步地,还包括:
配置所述储能变流器转换得到的市电功率小于或者等于所述储能系统的最大输入输出功率的二分之一。
由上述描述可知,在市电给储能系统充电时,市电功率小于或者等于储能系统的最大输入输出功率的二分之一,可以有效提高储能系统的寿命。
进一步地,所述接收车辆向所述充电桩发送的充电需求之前包括:
若所述车辆与所述充电桩连接,则使用低压辅助所述充电桩供电回路导通,为所述车辆供电并进行绝缘测试;
在所述绝缘测试之后,为所述充电桩投入泄放电路泄放能量,并周期性向所述车辆发送充电通信握手报文。
由上述描述可知,在接收车辆的充电需求之前,先对充电桩进行绝缘测试,在测试结束后通过投入泄放电路泄放剩余的能量,并周期性向所述车辆发送充电通信握手报文,从而保证设备的安全性。
进一步地,根据所述充电需求中的充电电量参数提供所述储能变流器转换得到的市电或者所述储能系统或者所述光伏系统进行充电包括:
根据充电桩连接的每一车辆的所述充电电量参数计算所述充电桩所需输出的充电功率;
若所述充电功率小于功率阈值,判断所述充电功率是否大于所述光伏系统的输出功率,若是,则使用所述市电和所述光伏系统对所述充电桩和所述储能系统供电,否则,使用所述光伏系统对所述充电桩和所述储能系统供电;
若所述充电功率大于或者等于功率阈值,判断所述充电功率是否大于所述储能系统的最大输入输出功率与所述光伏系统的输出功率之和,若是,则使用所述市电、储能系统和光伏系统对所述充电桩供电,否则,使用所述储能系统和光伏系统对所述充电桩供电。
由上述描述可知,根据充电桩连接的每一车辆的充电电量参数计算充电桩所需输出的充电功率,若充电功率小于功率阈值,使用市电和光伏系统对充电桩和储能系统供电;若充电功率大于或者等于功率阈值,使用市电、储能系统和光伏系统对所述充电桩供电,因此能够根据基于充电桩所需输出的充电功率灵活调整充电方式,从而合理对各设备的功率进行分配控制。
请参照图2,本发明另一实施例提供了一种光储充系统的参数配置终端,包括存储器、处理器以及存储在所述存储器上并可在处理器上运行的计算机程序,所述处理器执行所述计算机程序时实现以下步骤:
配置光储充系统中储能变流器转换得到的市电功率与储能系统的最大输入输出功率与光伏系统的输出功率之和大于或者等于与充电桩连接的双向直流变换器的输出功率;
配置所述光伏系统的输出功率小于所述市电功率且小于所述储能系统的最大输入输出功率;
接收车辆向所述充电桩发送的充电需求,根据所述充电需求中的充电电量参数提供所述储能变流器转换得到的市电或者所述储能系统或者所述光伏系统进行充电。
由上述描述可知,配置市电功率与储能系统的最大输入输出功率与光伏系统的输出功率之和大于或者等于双向直流变换器的输出功率,因此能够支撑充电桩满载时的输出功率,确保系统在充电桩满载时能够正常运行;通过配置光伏系统的输出功率小于储能系统的最大输入输出功率,便于将光伏系统电量存储至储能系统,保证储能系统的安全性能;通过配置光伏系统的输出功率小于市电功率,便于通过储能变流器将功率反向输出给电网内的部件进行供电,从而合理配置光储充系统的参数;接收车辆向充电桩发送的充电需求,根据充电需求中的充电电量参数提供对应的充电方式,从而提高参数配置的准确性。
进一步地,配置所述光伏系统的输出功率小于所述市电功率且小于所述储能系统的最大输入输出功率之后包括:
若所述充电桩停止向车辆充电,则将所述光伏系统的功率输出至所述储能系统;
若所述充电桩停止向所述车辆充电且所述储能系统已充电完成,则将所述光伏系统的功率输出至所述储能变流器,通过所述储能变流器将功率反向输出给电网内的部件进行供电。
由上述描述可知,若充电桩停止向车辆充电,则将多余的电量存储至储能系统,由于光伏系统的输出功率小于储能系统的最大输入输出功率,能够保证储能系统的安全性能;若充电桩停止向车辆充电且储能系统已充电完成,通过储能变流器将功率反向输出给电网内的部件进行供电,由于光伏系统的输出功率小于市电功率,能够保证光伏系统中的功率全部释放出去,从而合理配置光储充系统的参数。
进一步地,还包括:
配置所述储能变流器转换得到的市电功率小于或者等于所述储能系统的最大输入输出功率的二分之一。
由上述描述可知,在市电给储能系统充电时,市电功率小于或者等于储能系统的最大输入输出功率的二分之一,可以有效提高储能系统的寿命。
进一步地,所述接收车辆向所述充电桩发送的充电需求之前包括:
若所述车辆与所述充电桩连接,则使用低压辅助所述充电桩供电回路导通,为所述车辆供电并进行绝缘测试;
在所述绝缘测试之后,为所述充电桩投入泄放电路泄放能量,并周期性向所述车辆发送充电通信握手报文。
由上述描述可知,在接收车辆的充电需求之前,先对充电桩进行绝缘测试,在测试结束后通过投入泄放电路泄放剩余的能量,并周期性向所述车辆发送充电通信握手报文,从而保证设备的安全性。
进一步地,根据所述充电需求中的充电电量参数提供所述储能变流器转换得到的市电或者所述储能系统或者所述光伏系统进行充电包括:
根据充电桩连接的每一车辆的所述充电电量参数计算所述充电桩所需输出的充电功率;
若所述充电功率小于功率阈值,判断所述充电功率是否大于所述光伏系统的输出功率,若是,则使用所述市电和所述光伏系统对所述充电桩和所述储能系统供电,否则,使用所述光伏系统对所述充电桩和所述储能系统供电;
若所述充电功率大于或者等于功率阈值,判断所述充电功率是否大于所述储能系统的最大输入输出功率与所述光伏系统的输出功率之和,若是,则使用所述市电、储能系统和光伏系统对所述充电桩供电,否则,使用所述储能系统和光伏系统对所述充电桩供电。
由上述描述可知,根据充电桩连接的每一车辆的充电电量参数计算充电桩所需输出的充电功率,若充电功率小于功率阈值,使用市电和光伏系统对充电桩和储能系统供电;若充电功率大于或者等于功率阈值,使用市电、储能系统和光伏系统对所述充电桩供电,因此能够根据基于充电桩所需输出的充电功率灵活调整充电方式,从而合理对各设备的功率进行分配控制。
本发明的一种光储充系统的参数配置方法及终端,适用于对光储充系统配置合理的充电功率、储能电量和光伏系统,并提高参数配置的准确性,以下通过具体实施方式进行说明:
实施例一
请参照图1、图3至图5,一种光储充系统的参数配置方法,包括步骤:
S1、配置光储充系统中储能变流器转换得到的市电功率与储能系统的最大输入输出功率与光伏系统的输出功率之和大于或者等于与充电桩连接的双向直流变换器的输出功率。
具体的,请参照图3,光储充系统的硬件组成由储能变流器(PCS),电池储能系统,直流智能充电系统和光伏发电系统组成。所有硬件统一接受能量管理系统(EMS)的调度和控制,光储充系统的硬件具体内容如下:
1.储能变流器:与电池管理系统(BMS)通信,对电池储能系统进行充放电管理,接受EMS的能量调配以及控制保护;
2.电池储能系统:由安全可靠的磷酸铁锂电池串并联组成,采样模块化设计,每个模块经过模块串并联后组成储能系统,配套电池管理系统对电池进行数据采集以及控制保护;
3.直流智能充电系统:由双向隔离直流变流器和分体式充电桩组成。配置6个分体式充电桩:
双向隔离直流变流器:双向隔离直流变流器为直流智能充电系统的功率模块,可以对电动汽车进行大功率充电,实现快速充电的目的;
分体式充电桩:作为智能充电系统的充电控制单元,具备电能计量和绝缘检测的功能,并且与电动汽车BMS通讯接口、与双向直流变换器通讯接口、与EMS通讯接口;
4.光伏系统:光伏控制器:是组成直流光伏发电系统的核心设备之一,具备MPPT(Maximum
Power Point Tracking,最大功率点追踪控制太阳能控制器),能够实现高效率 DC/DC转换,光伏组件输出的直流能量转换为与储能系统直流母线匹配的电压,将绿色能源存储在储能系统中或直接给负载使用,实现可光伏发电高效率利用。光伏控制器接受电池系统BMS充电控制,接受EMS的管理和调度。
5.能量管理系统(EMS):通过EMS实现整个微电网系统各种能源的监视和控制;对储能系统以及电动汽车充放电主要数据进行处理显示与控制保护。
在本实施例中,请参照图4,储能变流器转换市电功率A、电池储能系统最大输出输入功率B、光伏系统输出功率D和充电系统对外输出功率C,需要满足:A+B+D≥C,因此光伏功率+电池功率+储能变流器功率能够支撑充电桩满载时的输出功率,确保系统在充电桩满载时能够正常运行。
S2、配置所述光伏系统的输出功率小于所述市电功率且小于所述储能系统的最大输入输出功率。
其中,配置所述光伏系统的输出功率小于所述市电功率且小于所述储能系统的最大输入输出功率之后包括:
若所述充电桩停止向车辆充电,则将所述光伏系统的功率输出至所述储能系统;
若所述充电桩停止向所述车辆充电且所述储能系统已充电完成,则将所述光伏系统的功率输出至所述储能变流器,通过所述储能变流器将功率反向输出给电网内的部件进行供电。
具体的,在本实施例中,参数配置需要满足D<A且D<B,因此在光伏系统持续发电,充电桩功率无法消耗的情况下,能够使用光伏系统给电池储能系统补电;在光伏系统持续发电,且电池储能系统无法吸纳,充电桩无法消耗的情况下,可以使用储能变流器把功率反向输出给电网,进行光伏并网,给局域网内部件反向供电。
并且光伏系统中配置有光伏控制器,具备MPPT跟踪功能,实现高效率转换。光伏组件将太阳能转换为直流电能,经直流变换器,再经充电桩可直接为电动汽车充电,多余电量经储能逆变器存储在储能系统中。交流光伏发电子系统可接受EMS能量管理系统的能量调度,保证能量利用最大化。
其中,还包括:
配置所述储能变流器转换得到的市电功率小于或者等于所述储能系统的最大输入输出功率的二分之一。
具体的,在本实施例中,参数配置需要满足A≤0.5*B,因此在使用市电给电池储能系统充电时,充电倍率为0.5C(C表示电池放电电流/充电电流,即电池充放电时电流大小的比率),相较于充电倍率为1C可以有效提高电池储能系统的寿命。
请参照图5,通过上述配置方法能够配置为:250kW储能变换器、500~600kWh电池储能系统(最大充放电倍率1C)、直流充电功率720kW和光伏功率250kW,该配置满足以下条件:
1.电池功率500kW~600kW+储能变换器250kW+光伏功率250kW≥充电桩功率720kW;
2.储能变换器250kW≤0.5*储能功率500kW~600kW;
3.储能变换器250kW≥光伏功率250kW;
4.电池功率500kW≥光伏功率250kW。
因此配置合理的储能功率-电网功率-光伏功率-充电功率的比例,能够确保光储充系统能够稳定持续运行。
S3、接收车辆向所述充电桩发送的充电需求,根据所述充电需求中的充电电量参数提供所述储能变流器转换得到的市电或者所述储能系统或者所述光伏系统进行充电。
其中,所述接收车辆向所述充电桩发送的充电需求之前包括:
若所述车辆与所述充电桩连接,则使用低压辅助所述充电桩供电回路导通,为所述车辆供电并进行绝缘测试;
在所述绝缘测试之后,为所述充电桩投入泄放电路泄放能量,并周期性向所述车辆发送充电通信握手报文。
具体的,当车辆使用交流充电桩进行充电时,充电桩控制器判断是否充电插座已连接,并锁定电子锁防止枪头脱落;进入自检阶段,低压辅助供电回路导通,为电动汽车控制装置供电,进行绝缘监测;检测结束后,将投入泄放回路泄放能量,同时开始周期发送通信握手报文;
进入充电阶段后,车辆向充电桩控制器实时发送电池充电需求的参数,参数包括:单体电芯最高允许充电电压、动力电池系统最高允许充电总电压、动力电池系统最高允许充电电流、单体电芯最高允许温度、单体电芯以及动力电池系统当前电压、SOC等。储能系统会根据该参数实时调整输出充电电压和电流,并相互发送各自的状态信息,车辆需求的充电电量会从电池储能系统或储能变流器经过双向直流变换器降压至车辆合适的电压进行充电;并且能够将充电信息上传至EMS、云平台及手机APP/小程序,车辆根据BMS内部逻辑判断是否达到充满状态,并将此报文传给控制器执行结束充电命令。
实施例二
本实施例与实施例一的区别在于,进一步限定了如何根据充电电量参数提供对应的充电方式,具体为:
根据充电桩连接的每一车辆的所述充电电量参数计算所述充电桩所需输出的充电功率;
若所述充电功率小于功率阈值,判断所述充电功率是否大于所述光伏系统的输出功率,若是,则使用所述市电和所述光伏系统对所述充电桩和所述储能系统供电,否则,使用所述光伏系统对所述充电桩和所述储能系统供电;
若所述充电功率大于或者等于功率阈值,判断所述充电功率是否大于所述储能系统的最大输入输出功率与所述光伏系统的输出功率之和,若是,则使用所述市电、储能系统和光伏系统对所述充电桩供电,否则,使用所述储能系统和光伏系统对所述充电桩供电。
在本实施例中,光储充系统可以使用多种运行模式,主要模式为市电、电池储能系统及光伏系统为充电桩供电;其中,光伏功率是指光伏最大输出功率,比如上述的光伏功率为250kW即为光伏最大输出功率为250kW,而因为日照强度的不同,每一个时刻的光伏系统的输出功率是实时变化的。
具体的,在本实施例中,储能变换器转换得到的市电功率为250kW、电池储能系统的最大输入输出功率为500kWh、光伏系统的输出功率为200kW、功率阈值为500kW;
充电桩所需功率≤200kW时,由光伏组件给电池储能系统和充电桩供电;
200kW<充电桩所需功率<500kW时,由光伏组件和市电给电池储能系统和充电桩供电;
500kW≤充电桩所需功率≤500kW+200kW时,由电池储能系统和光伏系统对充电桩供电;
充电桩所需功率>500kW+200kW时,由市电、电池储能系统和光伏系统对充电桩供电。
而在其他等同实施例中,若光伏能量不足的情况下,比如晚上,则光伏系统的输出功率较小,此时,为了优先满足充电桩所需功率,由市电和储能给充电桩供电。
整个功率分配由EMS系统统筹各部件功率,进行控制,因此配置合理的充电桩数量和充电功率,能够确保满足车辆的充电功率需求,保证场站的轮换率。
实施例三
请参照图2,一种光储充系统的参数配置终端,包括存储器、处理器以及存储在所述存储器上并可在处理器上运行的计算机程序,所述处理器执行所述计算机程序时实现实施例一或二的一种光储充系统的参数配置方法的各个步骤。
综上所述,本发明提供的一种光储充系统的参数配置方法及终端,配置市电功率与储能系统的最大输入输出功率与光伏系统的输出功率之和大于或者等于双向直流变换器的输出功率,因此能够支撑充电桩满载时的输出功率,确保系统在充电桩满载时能够正常运行;若充电桩停止向车辆充电,则将多余的电量存储至储能系统,由于光伏系统的输出功率小于储能系统的最大输入输出功率,能够保证储能系统的安全性能;若充电桩停止向车辆充电且储能系统已充电完成,通过储能变流器将功率反向输出给电网内的部件进行供电,由于光伏系统的输出功率小于市电功率,能够保证光伏系统中的功率全部释放出去,从而合理配置光储充系统的参数;配置储能变流器转换得到的市电功率小于或者等于储能系统的最大输入输出功率的二分之一,有效提高储能系统的寿命;接收车辆向充电桩发送的充电需求,根据充电需求中的充电电量参数提供对应的充电方式,从而提高参数配置的准确性。
以上所述仅为本发明的实施例,并非因此限制本发明的专利范围,凡是利用本发明说明书及附图内容所作的等同变换,或直接或间接运用在相关的技术领域,均同理包括在本发明的专利保护范围内。
Claims (10)
- 一种光储充系统的参数配置方法,其特征在于,包括步骤:配置光储充系统中储能变流器转换得到的市电功率与储能系统的最大输入输出功率与光伏系统的输出功率之和大于或者等于与充电桩连接的双向直流变换器的输出功率;配置所述光伏系统的输出功率小于所述市电功率且小于所述储能系统的最大输入输出功率;接收车辆向所述充电桩发送的充电需求,根据所述充电需求中的充电电量参数提供所述储能变流器转换得到的市电或者所述储能系统或者所述光伏系统进行充电。
- 根据权利要求1所述的一种光储充系统的参数配置方法,其特征在于,配置所述光伏系统的输出功率小于所述市电功率且小于所述储能系统的最大输入输出功率之后包括:若所述充电桩停止向车辆充电,则将所述光伏系统的功率输出至所述储能系统;若所述充电桩停止向所述车辆充电且所述储能系统已充电完成,则将所述光伏系统的功率输出至所述储能变流器,通过所述储能变流器将功率反向输出给电网内的部件进行供电。
- 根据权利要求1所述的一种光储充系统的参数配置方法,其特征在于,还包括:配置所述储能变流器转换得到的市电功率小于或者等于所述储能系统的最大输入输出功率的二分之一。
- 根据权利要求1所述的一种光储充系统的参数配置方法,其特征在于,所述接收车辆向所述充电桩发送的充电需求之前包括:若所述车辆与所述充电桩连接,则使用低压辅助所述充电桩供电回路导通,为所述车辆供电并进行绝缘测试;在所述绝缘测试之后,为所述充电桩投入泄放电路泄放能量,并周期性向所述车辆发送充电通信握手报文。
- 根据权利要求1所述的一种光储充系统的参数配置方法,其特征在于,根据所述充电需求中的充电电量参数提供所述储能变流器转换得到的市电或者所述储能系统或者所述光伏系统进行充电包括:根据充电桩连接的每一车辆的所述充电电量参数计算所述充电桩所需输出的充电功率;若所述充电功率小于功率阈值,判断所述充电功率是否大于所述光伏系统的输出功率,若是,则使用所述市电和所述光伏系统对所述充电桩和所述储能系统供电,否则,使用所述光伏系统对所述充电桩和所述储能系统供电;若所述充电功率大于或者等于功率阈值,判断所述充电功率是否大于所述储能系统的最大输入输出功率与所述光伏系统的输出功率之和,若是,则使用所述市电、储能系统和光伏系统对所述充电桩供电,否则,使用所述储能系统和光伏系统对所述充电桩供电。
- 一种光储充系统的参数配置终端,包括存储器、处理器以及存储在所述存储器上并可在处理器上运行的计算机程序,其特征在于,所述处理器执行所述计算机程序时实现以下步骤:配置光储充系统中储能变流器转换得到的市电功率与储能系统的最大输入输出功率与光伏系统的输出功率之和大于或者等于与充电桩连接的双向直流变换器的输出功率;配置所述光伏系统的输出功率小于所述市电功率且小于所述储能系统的最大输入输出功率;接收车辆向所述充电桩发送的充电需求,根据所述充电需求中的充电电量参数提供所述储能变流器转换得到的市电或者所述储能系统或者所述光伏系统进行充电。
- 根据权利要求6所述的一种光储充系统的参数配置终端,其特征在于,配置所述光伏系统的输出功率小于所述市电功率且小于所述储能系统的最大输入输出功率之后包括:若所述充电桩停止向车辆充电,则将所述光伏系统的功率输出至所述储能系统;若所述充电桩停止向所述车辆充电且所述储能系统已充电完成,则将所述光伏系统的功率输出至所述储能变流器,通过所述储能变流器将功率反向输出给电网内的部件进行供电。
- 根据权利要求6所述的一种光储充系统的参数配置终端,其特征在于,还包括:配置所述储能变流器转换得到的市电功率小于或者等于所述储能系统的最大输入输出功率的二分之一。
- 根据权利要求6所述的一种光储充系统的参数配置终端,其特征在于,所述接收车辆向所述充电桩发送的充电需求之前包括:若所述车辆与所述充电桩连接,则使用低压辅助所述充电桩供电回路导通,为所述车辆供电并进行绝缘测试;在所述绝缘测试之后,为所述充电桩投入泄放电路泄放能量,并周期性向所述车辆发送充电通信握手报文。
- 根据权利要求6所述的一种光储充系统的参数配置终端,其特征在于,根据所述充电需求中的充电电量参数提供所述储能变流器转换得到的市电或者所述储能系统或者所述光伏系统进行充电包括:根据充电桩连接的每一车辆的所述充电电量参数计算所述充电桩所需输出的充电功率;若所述充电功率小于功率阈值,判断所述充电功率是否大于所述光伏系统的输出功率,若是,则使用所述市电和所述光伏系统对所述充电桩和所述储能系统供电,否则,使用所述光伏系统对所述充电桩和所述储能系统供电;若所述充电功率大于或者等于功率阈值,判断所述充电功率是否大于所述储能系统的最大输入输出功率与所述光伏系统的输出功率之和,若是,则使用所述市电、储能系统和光伏系统对所述充电桩供电,否则,使用所述储能系统和光伏系统对所述充电桩供电。
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