A prefabricated cabin for a charging station and an orderly power control system for a charging station

Abstract

The present invention discloses a prefabricated cabin of a charging station and an orderly power control system of the charging station, the system comprising a prefabricated cabin and a charging terminal; the prefabricated cabin comprises: a high voltage room, a transformer room, a low voltage room, a rectifier room, and a control room, the control room is at least equipped with an industrial computer and a power control unit, the control room collects information about power distribution equipment and charging power information, and adjusts multi-circuit power output in real time; the charging terminal sends the vehicle charging demand to the control room and measures the consumed electric energy. The present invention avoids the potential harm to the power grid caused by disordered electric vehicle charging behavior, can effectively utilize the distribution network resources configured by the prefabricated charging station, fully tap the service capacity of the charging station, orderly control the charging of multiple vehicles, ensure the safety of equipment operation, and ensure the economy of operation, reduce the investment cost of charging facility operators, and meet the charging needs of charging customers to the greatest extent.

Description

Technical Field

[0001] The invention relates to a prefabricated cabin of a charging station and an orderly power control system of the charging station, belonging to the technical field of electric vehicle charging and replacement. Background Art

[0002] Electric vehicles are relatively energy-saving and environmentally friendly green means of transportation. The chargers that come with electric vehicles often take 7-8 hours to charge. Once there is no electricity during driving, it will put drivers in an awkward situation. Electric vehicle charging stations are the main mode of energy replenishment for electric vehicles, but when there are multiple charging terminals, the available capacity of the charging station is often insufficient, and the charging power of high- and low-power electric vehicles is unbalanced, which cannot meet the charging needs of the vehicles. When multiple charging terminals are used at the same time, the power distribution of existing electric charging stations is relatively chaotic and disorderly, which can easily cause potential damage to the power grid. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a prefabricated cabin for a charging station and an orderly power control system for the charging station to avoid potential damage to the power grid caused by disordered electric vehicle charging behavior and meet the user's maximum charging needs under limited hardware conditions.

[0004] To achieve the above object, the present invention is implemented by adopting the following technical solutions:

[0005] In a first aspect, the present invention provides a prefabricated cabin for a charging station, comprising:

[0006] High-voltage room, used for external high-voltage AC power, measuring the overall power distribution capacity of the prefabricated cabin, and providing the temperature of the high-voltage terminal;

[0007] A transformer room, used to convert the high voltage AC power into low voltage AC power and provide transformer operating temperature;

[0008] A low voltage chamber, used to transmit the low voltage alternating current to the rectifier chamber, perform reactive power compensation on the low voltage grid, and provide low voltage terminal temperature;

[0009] Rectifier room: used to convert the low-voltage AC power into low-voltage DC power suitable for each charging interface;

[0010] Control room: used to calculate the total required charging power based on the charging demand power of each charging interface and the current output power of each charging interface, and compare the total required charging power with the limited power or the design capacity of the charging station, and dynamically adjust the actual output power of each charging interface in combination with the transformer operating temperature and the temperature of the high and low voltage terminals.

[0011] The high-voltage chamber is at least equipped with a high-voltage incoming line cabinet, a high-voltage metering cabinet, a high-voltage outgoing line cabinet, and a high-voltage terminal temperature acquisition device for acquiring the temperature of the high-voltage terminal;

[0012] The incoming end of the high-voltage incoming line cabinet is externally connected to a high-voltage AC10kV power supply, the outgoing end of the high-voltage incoming line cabinet is electrically connected to the incoming end of the high-voltage outgoing line cabinet, and the outgoing end of the high-voltage outgoing line cabinet is electrically connected to the high-voltage side of the transformer in the transformer room.

[0013] Optionally, the transformer room is at least equipped with a transformer and a transformer temperature collection device, and the transformer temperature collection device is used to collect the operating temperature of the transformer.

[0014] Optionally, the low-voltage room is equipped with at least a low-voltage incoming line cabinet, a low-voltage outgoing line cabinet, a low-voltage reactive power compensation cabinet, and a low-voltage terminal temperature acquisition device for collecting the temperature of the low-voltage terminal;

[0015] The incoming terminal of the low-voltage incoming cabinet and the incoming terminal of the low-voltage reactive compensation cabinet are respectively electrically connected to the low-voltage side of the transformer in the transformer room, and the outgoing terminal of the low-voltage incoming cabinet is electrically connected to the incoming terminal of the low-voltage outgoing cabinet.

[0016] Optionally, the rectifier chamber is configured with at least an incoming AC contactor and an AC / DC power conversion module, the incoming end of the incoming AC contactor is electrically connected to the outgoing end of the low-voltage chamber, the outgoing end of the incoming AC contactor is electrically connected to the input end of the AC / DC power conversion module, and the output end of the AC / DC power conversion module is electrically connected to each charging interface.

[0017] Optionally, the control room is configured with at least a power control unit, and the power control unit is used to:

[0018] Receive the required voltage and current of each charging interface, calculate the required charging power, and add the current output power of each charging interface to obtain the total required charging power;

[0019] Compare the total charging power requirement with the limited power: If the limited power ≤ the total charging power requirement, reduce the output power of each charging port according to the following ratio k1:

[0020]

[0021] If the limited power is greater than the total charging power requirement, or there is no power limit, compare the total charging power requirement with the design capacity of the charging station. If the total charging power requirement is less than or equal to the design capacity of the charging station, control the output according to the actual demand of each charging interface.

[0022] If the total charging demand power is greater than the design capacity of the charging station and the transformer operating temperature exceeds the set threshold, the output power of each charging port will be reduced by 10%;

[0023] If the total charging demand power is greater than the design capacity of the charging station, and the transformer operating temperature does not exceed the set threshold, but the high-voltage terminal temperature and / or the low-voltage terminal temperature exceeds the corresponding set threshold, the output power of each charging interface is reduced by 10%;

[0024] If the total charging demand power is greater than the design capacity of the charging station, and the transformer operating temperature, high-voltage terminal temperature, and low-voltage terminal temperature do not exceed the set threshold, the over-design load power output is executed, and the output power of each charging interface increases according to the increase ratio of the transformer simultaneity factor of 0.1.

[0025] In a second aspect, the present invention provides a charging station power orderly control system, including a management platform, a plurality of charging terminals and the charging station prefabricated cabin disclosed in the first aspect of the present application;

[0026] The management platform is used to issue power limit instructions to the prefabricated cabin of the charging station, and the platform issues output power strategies, on-demand output power strategies and overload output power strategies;

[0027] The charging terminal is electrically connected to the prefabricated cabin of the charging station through a charging interface, and provides corresponding charging power to the device to be charged according to the control of the prefabricated cabin of the charging station;

[0028] The output power strategy issued by the platform refers to the adjustment of each charging interface according to the maximum power instruction issued by the management platform;

[0029] The on-demand output power strategy refers to the situation where the management platform does not issue a power control command and the sum of the output power requirements of all charging interfaces is less than the design capacity of the charging station, and the output is based on the power response of the charging interface requirements;

[0030] The overload output power strategy means that during the process of charging demand startup and operation, the total charging demand power exceeds the design capacity of the charging station. By determining the operating status of each power distribution equipment in the prefabricated cabin of the charging station, overload operation is performed to meet the maximum charging power allowed by the equipment to be charged.

[0031] Optionally, the management platform is communicatively connected to a control room of the prefabricated cabin of the charging station via a network cable or a wireless communication network.

[0032] Optionally, the prefabricated cabin of the charging station communicates with each charging terminal via a CAN bus, and collects the operating status of each power distribution equipment in the cabin.

[0033] Optionally, the charging terminal includes a DC metering device for charging metering, a charging plug matching the device to be charged, a control system for charging logic control, a human-computer interaction interface for human-computer interaction with a user, a card reader for reading user information, and an auxiliary power supply for auxiliary power supply.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] The present invention discloses a charging station prefabricated cabin and a charging station power orderly control system. The charging prefabricated cabin includes a high-voltage room, a transformer room, a low-voltage room, a rectifier room and a control room. The various parts of the charging prefabricated cabin are arranged in order and work in cooperation. The control room can calculate the total charging demand power according to the charging demand power of each charging interface and the current output power of each charging interface, and compare the total charging demand power with the limited power or the design capacity of the charging station. Combined with the operating temperature of the transformer and the temperature of the high and low voltage terminals, the actual output power of each charging interface is dynamically adjusted. Not only the overall safety monitoring principle of the charging station is considered, but also the distribution network resources configured by the current charging station can be effectively utilized, the service capacity of the charging station can be fully explored, and the charging situation of multiple vehicles can be orderly controlled to ensure the safety of equipment operation and avoid the potential harm caused to the power grid by disordered electric vehicle charging behavior. The charging station power orderly control system includes a management platform, multiple charging terminals and a charging station prefabricated cabin. The charging terminal provides corresponding charging power for the device to be charged according to the control of the charging station prefabricated cabin, so as to ensure the economic efficiency of operation, reduce the investment cost of the charging facility operator, and meet the charging needs of charging customers to the greatest extent. The orderly power control system of the charging station integrates high and low voltage distribution equipment and charging equipment, which can maximize the utilization of the distribution equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the circuit structure of a prefabricated cabin of a charging station provided by an embodiment of the present invention;

[0037] Figure 2 This is a diagram of the internal space layout of a prefabricated cabin of a charging station provided in an embodiment of the present invention;

[0038] Figure 3 This is a schematic diagram of data interaction between a power control unit of a prefabricated cabin of a charging station and each charging pile provided by an embodiment of the present invention;

[0039] Figure 4 It is a flow chart of a control method of a charging station power orderly control system provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0040] The technical solution of the present invention is described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical solution of the present application, rather than limitations on the technical solution of the present application. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments can be combined with each other.

[0041] The term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0042] Embodiment 1:

[0043] like Figure 1 As shown, an embodiment of the present invention provides a prefabricated cabin for a charging station, comprising:

[0044] High-voltage room, used for external high-voltage AC power, measuring the overall power distribution capacity of the prefabricated cabin, and providing the temperature of the high-voltage terminal;

[0045] A transformer room, used to convert the high voltage AC power into low voltage AC power and provide transformer operating temperature;

[0046] A low voltage chamber, used to transmit the low voltage alternating current to the rectifier chamber, perform reactive power compensation on the low voltage grid, and provide low voltage terminal temperature;

[0047] Rectifier room: used to convert the low-voltage AC power into low-voltage DC power suitable for each charging interface;

[0048] Control room: used to calculate the total required charging power based on the charging demand power of each charging interface and the current output power of each charging interface, and compare the total required charging power with the limited power or the design capacity of the charging station, and dynamically adjust the actual output power of each charging interface in combination with the transformer operating temperature and the temperature of the high and low voltage terminals.

[0049] The prefabricated cabin of the charging station provided in the embodiment of the present invention can calculate the total charging demand power according to the charging demand power of each charging interface and the current output power of each charging interface, and compare the total charging demand power with the limited power or the design capacity of the charging station, and dynamically adjust the actual output power of each charging interface in combination with the operating temperature of the transformer and the temperature of the high and low voltage terminals. It not only takes into account the overall safety monitoring principle of the charging station, but also can effectively utilize the distribution network resources currently configured in the charging station, fully tap the service capacity of the charging station, orderly control the charging of multiple vehicles, ensure the safe operation of the equipment, and avoid the potential harm to the power grid caused by disordered electric vehicle charging behavior.

[0050] The high-voltage room is used to connect an external high-voltage power supply, thereby providing high-voltage alternating current to the prefabricated cabin of the charging station. In the embodiment of the present invention, the high-voltage room is at least equipped with a high-voltage incoming line cabinet, a high-voltage metering cabinet, a high-voltage outgoing line cabinet, and a high-voltage terminal temperature acquisition device for collecting the temperature of the high-voltage terminal. The incoming line end of the high-voltage incoming line cabinet can be connected to an external high-voltage AC10kV power supply, the outgoing line end of the high-voltage incoming line cabinet is electrically connected to the incoming line end of the high-voltage outgoing line cabinet, and the outgoing line end of the high-voltage outgoing line cabinet is electrically connected to the high-voltage side of the transformer in the transformer room.

[0051] The transformer room is used to convert the high voltage AC output from the high voltage room into low voltage AC to meet the low voltage demand of the subsequent low voltage room. In an embodiment of the present invention, the transformer is at least equipped with a transformer and a transformer temperature acquisition device, and the transformer temperature acquisition device is used to collect the transformer operating temperature.

[0052] The low-voltage room is used to introduce the low-voltage AC power output by the transformer into the rectifier room and provide reactive power compensation when necessary. In an embodiment of the present invention, the low-voltage room is at least equipped with a low-voltage incoming line cabinet, a low-voltage outgoing line cabinet, a low-voltage reactive power compensation cabinet, and a low-voltage terminal temperature acquisition device for collecting the temperature of the low-voltage terminal. The incoming line end of the low-voltage incoming line cabinet and the incoming line end of the low-voltage reactive power compensation cabinet are respectively electrically connected to the low-voltage side of the transformer in the transformer room, and the outgoing line end of the low-voltage incoming line cabinet is electrically connected to the incoming line end of the low-voltage outgoing line cabinet.

[0053] The rectifier chamber is used to convert low-voltage AC power into low-voltage DC power to meet the low-voltage DC demand of the control room. The rectifier chamber is at least equipped with an incoming AC contactor and an AC / DC power conversion module. The incoming end of the incoming AC contactor is electrically connected to the outgoing end of the low-voltage chamber, the outgoing end of the incoming AC contactor is electrically connected to the input end of the AC / DC power conversion module, and the output end of the AC / DC power conversion module is electrically connected to each charging interface.

[0054] In an embodiment of the present invention, the control room is at least equipped with a power control unit. The power control unit is used to:

[0055] Receive the required voltage and current of each charging interface, calculate the required charging power, and add the current output power of each charging interface to obtain the total required charging power; compare the total required charging power with the limited power: if the limited power ≤ the total required charging power, reduce the output power of each charging interface according to the following ratio k1:

[0056]

[0057] If the limited power is greater than the total charging power requirement, or there is no power limit, compare the total charging power requirement with the design capacity of the charging station. If the total charging power requirement is less than or equal to the design capacity of the charging station, control the output according to the actual demand of each charging interface.

[0058] If the total charging demand power is greater than the design capacity of the charging station and the transformer operating temperature exceeds the set threshold, the output power of each charging port will be reduced by 10%;

[0059] If the total charging demand power is greater than the design capacity of the charging station, and the transformer operating temperature does not exceed the set threshold, but the high-voltage terminal temperature and / or the low-voltage terminal temperature exceeds the corresponding set threshold, the output power of each charging interface is reduced by 10%;

[0060] If the total charging demand power is greater than the design capacity of the charging station and the transformer operating temperature and the load voltage do not exceed the set threshold, the over-design load power output is executed, and the output power of each charging interface is increased by the increase ratio of the transformer simultaneity coefficient of 0.1 to maximize the demand power. For example: the current transformer simultaneity coefficient is 0.8, the output power is 80% of the transformer capacity, the transformer temperature and the high and low voltage terminal temperatures monitored by the system do not exceed the threshold, and the system has no alarm, then the current transformer simultaneity coefficient can be increased to 0.9, and the output power can be increased to 90% of the transformer capacity, and the operating temperature is continuously monitored.

[0061] like Figure 2 As shown, it is the internal space layout diagram of the prefabricated cabin of the charging station provided by an embodiment of the present invention. The high-voltage room, transformer room, and low-voltage room are arranged in sequence. The space interval can be divided according to the actual needs of the high and low voltage equipment. The rectifier room and the control room, as low-voltage electrical equipment, can adopt an upper and lower arrangement structure. The embodiment of the present invention provides that the high and low voltage distribution equipment and the charging equipment are integrated into one, which can realize the maximum utilization of the distribution equipment.

[0062] Figure 3 It is a schematic diagram of the data interaction between the power control unit of the prefabricated cabin of the charging station provided by an embodiment of the present invention and each charging pile. The power control unit is the core component of the power output control of the entire station, and is internally configured with a power orderly regulation system. The controller in each charging pile receives the charging demand voltage and current parameters of the vehicle battery management system BMS, and dynamically forwards the parameters to the power control unit inside the prefabricated cabin. The power control unit calculates the sum of the actual output powers of the charging interfaces, and compares it with the collected operating status of the high and low voltage power distribution equipment and the power instructions issued by the management platform. The actual output power of each charging interface can be dynamically adjusted by setting the weight factor.

[0063] Embodiment 2:

[0064] The embodiment of the present invention further provides a charging station power orderly control system, comprising a management platform, a plurality of charging terminals and a charging station prefabricated cabin. The charging station prefabricated cabin can be the charging station prefabricated cabin described in the first embodiment.

[0065] like Figure 4, which is a flow chart of a control method of a charging station power orderly control system provided by an embodiment of the present invention.

[0066] The management platform is used to issue power limit instructions to the prefabricated cabin of the charging station, and the platform issues output power strategies, on-demand output power strategies and overload output power strategies;

[0067] The charging terminal is electrically connected to the prefabricated cabin of the charging station through a charging interface, and provides corresponding charging power to the device to be charged according to the control of the prefabricated cabin of the charging station.

[0068] It should be noted that, in the embodiment of the present invention, the output power strategy issued by the platform refers to the adjustment of each charging interface according to the maximum power instruction issued by the management platform. The on-demand output power strategy refers to the situation where the management platform has not issued a power control command and the sum of the output power requirements of all charging interfaces is less than the design capacity of the charging station, and the output is in accordance with the power response required by the charging interface. The overload output power strategy refers to the process of charging demand startup, operation, etc., when the total charging demand power exceeds the design capacity of the charging station. By determining the operating status of each power distribution equipment in the prefabricated cabin of the charging station, overload operation is performed to meet the maximum charging power allowed by the equipment to be charged.

[0069] In the embodiment of the present invention, the management platform can be connected to the control room of the prefabricated cabin of the charging station through a network cable. However, the management platform can be connected to the control room of the prefabricated cabin of the charging station through a wireless communication network to meet the needs of long-distance communication.

[0070] The prefabricated cabin of the charging station can communicate with each charging terminal through the CAN bus to obtain charging power requirements, control charging power distribution, collect operating temperatures of transformers and high and low voltage distribution cabinets, and collect the operating status of each distribution equipment in the cabin.

[0071] As an embodiment of the present invention, the charging terminal may include a DC metering device for charging metering, a charging plug matching the device to be charged, a control system for charging logic control, a human-computer interaction interface for human-computer interaction with a user, a card reader for reading user information, and an auxiliary power supply for auxiliary power supply. The auxiliary power supply is used to provide power for the power control unit, the BMS, and the temperature acquisition device, and a DC12V auxiliary power supply can be selected.

[0072] The charging station power orderly control system provided by the embodiment of the present invention provides the maximum charging power to the vehicle while making full use of the existing power distribution resources; the risk threshold of the power orderly control of the pre-installed charging station can be set to prevent the safety risks of the power distribution and charging equipment; the distribution network equipment resources configured in the pre-installed charging station can be effectively utilized to fully tap the equipment capabilities and avoid the adverse effects of disordered charging on the peak-to-valley difference of the power grid load. When the user's charging power demand is less than the design capacity of the charging station, the user can freely select a variable charging power; when the charging demand power exceeds the design capacity of the charging station, the charging station is operated appropriately exceeding the design capacity of the charging station based on the operating status of each distribution equipment.

[0073] Those skilled in the art should understand that the power control unit described in the present application may be in the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects.

[0074] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A prefabricated cabin for a charging station, characterized in that: include: High-voltage room, used for external high-voltage AC power, measuring the overall power distribution capacity of the prefabricated cabin, and providing the temperature of the high-voltage terminal; A transformer room, used to convert the high voltage AC power into low voltage AC power and provide transformer operating temperature; A low voltage chamber, used to transmit the low voltage alternating current to the rectifier chamber, perform reactive power compensation on the low voltage grid, and provide low voltage terminal temperature; Rectifier room: used to convert the low-voltage AC power into low-voltage DC power suitable for each charging interface; Control room: used to calculate the total required charging power according to the required charging power of each charging interface and the current output power of each charging interface, and compare the total required charging power with the limited power or the design capacity of the charging station, and dynamically adjust the actual output power of each charging interface in combination with the operating temperature of the transformer and the temperature of the high and low voltage terminals; The control room is at least equipped with a power control unit, which is used to: Receive the required voltage and current of each charging interface, calculate the required charging power, and add the current output power of each charging interface to obtain the total required charging power; Compare the total charging power requirement with the limited power: If the limited power ≤ the total charging power requirement, reduce the output power of each charging port according to the following ratio k1: ； If the limited power is greater than the total charging power requirement, or there is no power limit, compare the total charging power requirement with the design capacity of the charging station. If the total charging power requirement is less than or equal to the design capacity of the charging station, control the output according to the actual demand of each charging interface. If the total charging demand power is greater than the design capacity of the charging station and the transformer operating temperature exceeds the set threshold, the output power of each charging port will be reduced by 10%; If the total charging demand power is greater than the design capacity of the charging station, and the transformer operating temperature does not exceed the set threshold, but the high-voltage terminal temperature and / or the low-voltage terminal temperature exceeds the corresponding set threshold, the output power of each charging interface is reduced by 10%; If the total charging demand power is greater than the design capacity of the charging station, and the transformer operating temperature, high-voltage terminal temperature, and low-voltage terminal temperature do not exceed the set threshold, the over-design load power output is executed, and the output power of each charging interface increases according to the increase ratio of the transformer simultaneity factor of 0.

1.

2. The prefabricated cabin of the charging station according to claim 1, characterized in that: The high-voltage chamber is at least equipped with a high-voltage incoming line cabinet, a high-voltage metering cabinet, a high-voltage outgoing line cabinet, and a high-voltage terminal temperature acquisition device for acquiring the temperature of the high-voltage terminal; The incoming end of the high-voltage incoming line cabinet is externally connected to a high-voltage AC10kV power supply, the outgoing end of the high-voltage incoming line cabinet is electrically connected to the incoming end of the high-voltage outgoing line cabinet, and the outgoing end of the high-voltage outgoing line cabinet is electrically connected to the high-voltage side of the transformer in the transformer room.

3. The prefabricated cabin of the charging station according to claim 1, characterized in that: The transformer room is at least equipped with a transformer and a transformer temperature collection device, and the transformer temperature collection device is used to collect the operating temperature of the transformer.

4. The prefabricated cabin of the charging station according to claim 1, characterized in that: The low-voltage room is at least equipped with a low-voltage incoming line cabinet, a low-voltage outgoing line cabinet, a low-voltage reactive power compensation cabinet, and a low-voltage terminal temperature acquisition device for collecting the temperature of the low-voltage terminal; The incoming terminal of the low-voltage incoming cabinet and the incoming terminal of the low-voltage reactive compensation cabinet are respectively electrically connected to the low-voltage side of the transformer in the transformer room, and the outgoing terminal of the low-voltage incoming cabinet is electrically connected to the incoming terminal of the low-voltage outgoing cabinet.

5. The prefabricated cabin of the charging station according to claim 1, characterized in that: The rectifier chamber is at least equipped with an incoming AC contactor and an AC / DC power conversion module. The incoming end of the incoming AC contactor is electrically connected to the outgoing end of the low-voltage chamber, the outgoing end of the incoming AC contactor is electrically connected to the input end of the AC / DC power conversion module, and the output end of the AC / DC power conversion module is electrically connected to each charging interface.

6. A charging station power orderly control system, characterized in that: It comprises a management platform, a plurality of charging terminals and a prefabricated cabin of a charging station as claimed in any one of claims 1 to 5; The management platform is used to issue power limit instructions to the prefabricated cabin of the charging station, and the platform issues output power strategies, on-demand output power strategies and overload output power strategies; The charging terminal is electrically connected to the prefabricated cabin of the charging station through a charging interface, and provides corresponding charging power to the device to be charged according to the control of the prefabricated cabin of the charging station; The output power strategy issued by the platform refers to the adjustment of each charging interface according to the maximum power instruction issued by the management platform; The on-demand output power strategy refers to the situation where the management platform does not issue a power control command and the sum of the output power requirements of all charging interfaces is less than the design capacity of the charging station, and the output is based on the power response of the charging interface requirements; The overload output power strategy means that during the startup and operation of charging demand, the total charging demand power exceeds the design capacity of the charging station. By determining the operating status of each power distribution equipment in the prefabricated cabin of the charging station, overload operation is performed to meet the maximum charging power allowed by the equipment to be charged.

7. The charging station power orderly control system according to claim 6, characterized in that: The management platform is communicatively connected to the control room of the prefabricated cabin of the charging station via a network cable or a wireless communication network.

8. The charging station power orderly control system according to claim 6, characterized in that: The prefabricated cabin of the charging station communicates with each charging terminal through the CAN bus, and collects the operating status of each power distribution equipment in the cabin.

9. The charging station power orderly control system according to claim 6, characterized in that: The charging terminal includes a DC metering device for charging metering, a charging plug matching the device to be charged, a control system for charging logic control, a human-computer interaction interface for human-computer interaction with a user, a card reader for reading user information, and an auxiliary power supply for auxiliary power supply.

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