Power control method and device based on multi-source cooperation and reconfigurable power matrix

Abstract

The application discloses a power control method and device based on multi-source cooperation and a reconfigurable power matrix. The method comprises the following steps: in response to a charging power scheduling instruction, current power supply parameter sets corresponding to multi-source power supply modules are acquired; at least three-phase alternating current power grids, photovoltaic modules and energy storage modules are included in the current power supply parameter sets; according to a preset power supply mode decision strategy and the current power supply parameter sets, current on-off states of switch groups in the multi-source power supply modules and current charging power distribution strategies in the multi-source power supply modules are determined; and the current charging power distribution strategies are executed, so that the power control module charges the to-be-charged equipment connected to the charging terminal group. According to the conditions corresponding to the working parameters of the three-phase alternating current power grids, the photovoltaic modules and the energy storage modules in the multi-source power supply modules of the charging station, the power supply mode and the charging power distribution mode in the charging station can be flexibly adjusted.

Description

Technical Field

[0001] This invention relates to the field of charging power control technology for new energy sources, and in particular to a power control method and apparatus based on multi-source coordination and reconfigurable power matrix. Background Technology

[0002] With the widespread adoption of electric vehicles, their charging demand has also increased significantly. Currently, multiple charging piles can be installed in charging stations to meet the charging needs of electric vehicles. However, these charging piles typically employ a fixed power conversion topology, meaning the maximum output power of a single charging pile is fixed under this design. This makes it impossible to flexibly control the power supply and charging power distribution within the charging station based on actual needs, such as grid load, peak and off-peak electricity prices, and the availability of renewable energy sources. Summary of the Invention

[0003] This invention provides a power control method and apparatus based on multi-source coordination and reconfigurable power matrix, aiming to solve the problem in the prior art that charging stations cannot flexibly adjust the energy supply mode and charging power allocation mode according to the grid load, peak and valley electricity prices, and whether renewable energy is connected to the charging station.

[0004] In a first aspect, embodiments of the present invention provide a power control method based on multi-source coordination and a reconfigurable power matrix, applied to a power control module. The input terminal of the power control module is connected to a multi-source power supply module, and the output terminal of the power control module is connected to a charging terminal group. The multi-source power supply module is used to provide the power control module with at least grid power supply, photovoltaic / energy storage power supply, and hybrid power supply modes. The power control method based on multi-source coordination and a reconfigurable power matrix includes:

[0005] In response to the charging power scheduling command, the current power supply parameter set corresponding to the multi-source power supply module is obtained; wherein, the current power supply parameter set includes at least the operating parameters of the three-phase AC grid, the photovoltaic module and the energy storage module;

[0006] Based on the preset power supply mode decision strategy and the current power supply parameter set, determine the current on / off state of the switch group in the multi-source power supply module and the current charging power allocation strategy in the multi-source power supply module.

[0007] The current charging power allocation strategy is executed so that the power control module charges the devices connected to the charging terminal group.

[0008] Secondly, embodiments of the present invention also provide a power control device based on multi-source coordination and a reconfigurable power matrix, which is configured in a power control module. The input terminal of the power control module is connected to a multi-source power supply module, and the output terminal of the power control module is connected to a charging terminal group. The multi-source power supply module is used to provide the power control module with grid power supply, photovoltaic / energy storage power supply, and hybrid power supply modes. The power control device based on multi-source coordination and a reconfigurable power matrix includes a unit for implementing the method described in the first aspect above.

[0009] Thirdly, embodiments of the present invention also provide a computer device, which includes a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the method described in the first aspect above.

[0010] Fourthly, embodiments of the present invention also provide a computer-readable storage medium storing a computer program, the computer program including program instructions that, when executed by a processor, can implement the method described in the first aspect above.

[0011] This invention provides a power control method and apparatus based on multi-source coordination and a reconfigurable power matrix. The method includes: responding to a charging power scheduling command, acquiring a current power supply parameter set corresponding to the multi-source power supply module; wherein the current power supply parameter set includes at least the operating parameters of a three-phase AC grid, a photovoltaic module, and an energy storage module; determining the current on / off state of the switch group in the multi-source power supply module and the current charging power allocation strategy in the multi-source power supply module according to a preset power supply mode decision strategy and the current power supply parameter set; and executing the current charging power allocation strategy so that the power control module charges the devices connected to the charging terminal group. This invention can flexibly adjust the power supply mode and charging power allocation mode in the charging station according to the conditions corresponding to the operating parameters of the three-phase AC grid, photovoltaic module, and energy storage module in the multi-source power supply module of the charging station. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 A schematic diagram illustrating an application scenario of the power control method based on multi-source coordination and reconfigurable power matrix provided in this embodiment of the invention;

[0014] Figure 2A flowchart illustrating the power control method based on multi-source coordination and reconfigurable power matrix provided in an embodiment of the present invention;

[0015] Figure 3 A schematic diagram illustrating a specific scenario of the power control method based on multi-source coordination and reconfigurable power matrix provided in this embodiment of the invention;

[0016] Figure 4 A schematic diagram of a sub-process of a power control method based on multi-source coordination and a reconfigurable power matrix provided in an embodiment of the present invention;

[0017] Figure 5 A schematic block diagram of a power control device based on multi-source coordination and a reconfigurable power matrix provided in an embodiment of the present invention;

[0018] Figure 6 A schematic block diagram of a computer device provided for an embodiment of the present invention. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0021] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0022] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0023] Please also refer to Figure 1 and Figure 2 ,in Figure 1 This is a schematic diagram illustrating a scenario of the power control method based on multi-source collaboration and a reconfigurable power matrix according to an embodiment of the present invention. Figure 2This is a flowchart illustrating the power control method based on multi-source coordination and a reconfigurable power matrix provided in an embodiment of the present invention. Figure 1 As shown, the power control method based on multi-source coordination and reconfigurable power matrix provided in this embodiment of the invention is applied to a power control module 1. The input terminal of the power control module 1 is connected to a multi-source power supply module 2, and the output terminal of the power control module 1 is connected to a charging terminal group 3. The multi-source power supply module 2 is used to provide the power control module 1 with at least grid power supply, photovoltaic / energy storage power supply, and hybrid power supply modes. Figure 2 As shown, the method includes the following steps S110-S130.

[0024] S110. In response to the charging power scheduling command, obtain the current power supply parameter set corresponding to the multi-source power supply module.

[0025] The current power supply parameters include at least the operating parameters of the three-phase AC power grid, photovoltaic modules, and energy storage modules.

[0026] In this embodiment, the technical solution is described using the power control module as the execution entity. To better understand the technical solution of this application, the following description is in conjunction with... Figure 3 The specific scenario diagrams of the power control method based on multi-source collaboration and reconfigurable power matrix provided in the paper illustrate this.

[0027] In one embodiment, such as Figure 3As shown, the multi-source power supply module 2 includes a three-phase AC input terminal 10, a front-stage AC-DC module group 20, a first switch group 30, a second switch group 40, a third switch group 50, a DC bus 60, a rear-stage AC / DC-DC module group 70, a photovoltaic module 80, an energy storage module 90, a fourth switch group 81, and a fifth switch group 91. The input terminal of the three-phase AC input terminal 10 is used to connect to a three-phase AC power grid. The output terminal of the three-phase AC input terminal 10 is connected to the first terminal of the front-stage AC-DC module group 20 and also to the input terminal of the third switch group 50. The output terminal of the third switch group 50 is connected to the first terminal of the rear-stage AC / DC-DC module group 70. The second terminal of the front-stage AC-DC module group 20 is connected to the first switch group 70. The moving end of group 30 is connected; the first stationary end of the first switch group 30 is connected to the DC bus 60; the second stationary end of the first switch group 30 is connected to the input end of the power control module 1; the input terminal of the second switch group 40 is connected to the DC bus 60; the output terminal of the second switch group 40 is connected to the first end of the subsequent AC / DC-DC module group 70; the photovoltaic module 80 is connected to the DC bus 60 through the fourth switch group 81; the energy storage module 90 is connected to the DC bus 60 through the fifth switch group 91; the second end of the subsequent AC / DC-DC module group 70 is connected to the input end of the power control module 1; the first switch group, the second switch group, and the third switch group constitute the switch group.

[0028] After adopting the multi-source power supply module with the above circuit topology, step S110 includes:

[0029] The real-time output power of the photovoltaic module in the multi-source energy supply module, the total charging demand power of the charging terminal group, the current state of charge of the energy storage module, the maximum discharge power of the energy storage module, the maximum discharge power of the photovoltaic-storage-DC-flexible device corresponding to the photovoltaic module, and the current time period electricity price type of the three-phase AC power grid are obtained and the current power supply parameter set is formed.

[0030] In this embodiment, reference continues to be made to Figure 3The charging terminal group 3 includes multiple charging terminals 3A, each of which can be considered a charging pile and can be connected to the device to be charged (such as an electric vehicle). In specific implementation, the input terminal of the three-phase AC input terminal 10 needs to be connected to the three-phase AC power grid to provide the main energy for the entire system. Each front-stage AC-DC module 21 in the front-stage AC-DC module group 20 has isolation functionality, and each rear-stage AC / DC-DC module 71 in the rear-stage AC / DC-DC module group 70 also has isolation functionality. Each front-stage AC-DC module 21 is used to convert AC power to DC power and provide electrical isolation, and each front-stage AC-DC module 21 operates independently. Each rear-stage AC / DC-DC module 71 is selectively connected to the output terminal of the front-stage AC-DC module 21 or an external DC power source. The DC bus 60 can be extended to connect photovoltaic module 80 and energy storage module 90 (such as lithium battery pack) according to actual power demand, and adopts photovoltaic-storage DC-flexible technology and power control module to flexibly control power supply to at least one charging terminal in the charging terminal group.

[0031] When the multi-source power supply module 2 adopts the circuit topology described above, it can realize various forms of energy collaborative power supply, such as grid power supply, photovoltaic / energy storage power supply and hybrid power supply. At this time, the power control module 1 can obtain the real-time output power of the photovoltaic module 80 in the multi-source power supply module 2 (e.g., represented by P_pv), the total charging demand power of the charging terminal group 3 (e.g., represented by P_demand_total), the current state of charge of the energy storage module 90 (e.g., represented by SOC, where SOC stands for State of Charge), the maximum discharge power of the energy storage module 90 (e.g., represented by P_batt_discharge_max), the maximum discharge power of the photovoltaic-storage-DC-flexible device corresponding to the photovoltaic module 80 (e.g., represented by P_flex_discharge_max), and the current time period electricity price type of the three-phase AC grid (e.g., represented by electricity_price_type), and form the current power supply parameter set.

[0032] Of course, the current power supply parameter set may also include the system rated power of the multi-source energy supply module (e.g., represented by P_rated), the system rated power threshold (e.g., its value is 1.5 times the system rated power, but it can also be set to other multiples of the system rated power according to actual needs), the maximum rechargeable power of the energy storage module 90 (e.g., represented by P_batt_charge_max), the maximum rechargeable power of the photovoltaic-storage-DC-flexible device corresponding to the photovoltaic module 80 (e.g., represented by P_flex_charge_max), and the maximum grid input power of the three-phase AC grid (e.g., represented by P_grid_max). The parameters obtained in the current power supply parameter set can then be further used for subsequent power control processing.

[0033] S120. Based on the preset power supply mode decision strategy and the current power supply parameter set, determine the current on / off state of the switch group in the multi-source power supply module and the current charging power allocation strategy in the multi-source power supply module.

[0034] In this embodiment, when the power control module has learned the current power supply parameter set, it can determine the power supply mode in the multi-source power supply module according to the power supply mode decision strategy (specifically, it can be achieved by controlling the current on / off state of the switch group in the multi-source power supply module), and determine the current charging power allocation strategy for controlling the power supply allocated to each module currently supplying power in the multi-source power supply module.

[0035] In one embodiment, such as Figure 4 As shown, step S120 includes:

[0036] S121. If it is determined that the total charging demand power is equal to 0, then the corresponding DC bus is connected in the switch group of the multi-source power supply module so that the switch connecting the photovoltaic module and the energy storage module to the DC bus is turned on at the same time, and the current charging power allocation strategy is set to intelligent energy storage scheduling mode.

[0037] S122. If it is determined that the sum of the real-time photovoltaic output power of the photovoltaic module, the maximum discharge power of the energy storage module, and the maximum discharge power of the photovoltaic-storage-DC-flexible device is greater than or equal to the total charging demand power in the current power supply parameter set, then the corresponding DC bus is connected in the switch group of the multi-source power supply module so that the switches of the photovoltaic module and the energy storage module are simultaneously connected to the DC bus, and the current charging power allocation strategy is set to the green power priority mode.

[0038] The intelligent energy storage scheduling mode is used to enable the power control module to control the multi-source energy supply module to charge during the off-peak period of the grid electricity price and discharge during the peak period of the grid electricity price; the green electricity priority mode is used to enable the power control module to control the multi-source energy supply module to supply power in the order of priority of photovoltaic module power supply, energy storage module power supply and grid power supply.

[0039] In this embodiment, if the total charging demand power is determined to be 0, it means that each charging terminal in the charging terminal group is not connected to the device to be charged. At this time, the multi-source energy supply module does not need to supply power to the charging terminal group through the power control module, but mainly focuses on charging and energy storage. Before setting the current charging power allocation strategy to the intelligent energy storage scheduling mode, the photovoltaic module and the energy storage module in the multi-source energy supply module need to be connected to the DC bus simultaneously. This can be achieved by turning the corresponding switches in the switch group on or off. When the power control module operates in intelligent energy storage scheduling mode, the rules followed include at least the following: when the grid price is in a trough period and no equipment is connected to the charging terminal group, the energy storage module is charged using the grid power from the three-phase AC grid, or the energy storage module is charged using the photovoltaic module, so that the energy is stored in the energy storage module for use when there is a charging demand later; when the grid price is in a peak period and there is equipment connected to the charging terminal group, the power control module is powered by the energy storage module first to achieve charging, and the power control module can also be powered by the photovoltaic module if there is still power available.

[0040] If the sum of the real-time photovoltaic output power of the photovoltaic module, the maximum discharge power of the energy storage module, and the maximum discharge power of the photovoltaic-storage-DC-flexible device is greater than or equal to the total charging demand power in the current power supply parameter set, it indicates that the multi-source power supply module needs to supply power to the charging terminal group through the power control module, and the green energy in the multi-source power supply module (the electrical energy provided by the photovoltaic module and the electrical energy provided by the energy storage module) is sufficient to meet the charging power requirements of all devices connected to the charging terminal group. Before setting the current charging power allocation strategy to the green power priority mode, the photovoltaic module and the energy storage module in the multi-source power supply module need to be connected to the DC bus simultaneously, which requires turning the corresponding switches in the switch group on or off. When the power control module operates in the green electricity priority mode, the rules followed include prioritizing the use of the power provided by the photovoltaic module, supplementing the charging demand with the power provided by the energy storage module only when the power provided by the photovoltaic module and the energy storage module are still insufficient to meet the current charging demand, and only connecting to the three-phase AC grid to use grid power to meet the charging demand.

[0041] In one embodiment, step S121 includes:

[0042] If the total charging demand power is determined to be equal to 0, then the moving end of each first switch in the first switch group in the switch group is connected to the first stationary end, each second switch in the second switch group is turned on, each third switch in the third switch group is turned off, the fourth switch group is turned on, and the fifth switch group is turned on.

[0043] Step S122 includes:

[0044] If the sum of the real-time photovoltaic output power of the photovoltaic module, the maximum discharge power of the energy storage module, and the maximum discharge power of the photovoltaic-storage-DC-flexible device is greater than or equal to the total charging demand power in the current power supply parameter set, then the moving end of each first switch in the first switch group of the switch group is connected to the first stationary end, each second switch in the second switch group is turned on, each third switch in the third switch group is turned off, the fourth switch group is turned on, and the fifth switch group is turned on.

[0045] In this embodiment, please refer to Figure 1 and Figure 3 When the power control module is operating in the intelligent energy storage scheduling mode, the switch groups in the multi-source power supply module have the following specific on and off states: the moving end of each first switch 31 in the first switch group 30 is connected to the first stationary end; each second switch 41 in the second switch group 40 is on; each third switch 51 in the third switch group 50 is off; the fourth switch group 81 is on and the fifth switch group 91 is on. With the switch group currently on and off, photovoltaic module 80 and energy storage module 90 are connected to DC bus 60. At this time, the power control module can provide charging methods including grid charging, photovoltaic / energy storage charging, and hybrid charging (hybrid charging means that the grid and photovoltaic / energy storage can simultaneously supply power to the system, with energy converging at the downstream AC / DC-DC module 71 or the power control module). It also retains a complete DC-DC conversion stage, providing interfaces and control capabilities (such as MPPT function, charge / discharge management, etc.) for connecting DC sources of different voltage levels. This achieves efficient and safe access and utilization of distributed energy resources, improving the system's green energy utilization rate and operational economy. Furthermore, when the power control module operates in intelligent energy storage scheduling mode, it helps to peak and valley fill on the grid side, balancing the grid load.

[0046] When the power control module operates in the green energy priority mode, the switch groups in the multi-source power supply module have the following specific on and off states: the moving ends of each first switch 31 in the first switch group 30 are connected to the first stationary ends; each second switch 41 in the second switch group 40 is on; each third switch 51 in the third switch group 50 is off; the fourth switch group 81 is on; and the fifth switch group 91 is on. In other words, the on and off states of the switch groups are exactly the same in both the green energy priority mode and the intelligent energy storage scheduling mode of the power control module. However, the difference lies in the fact that when the power control module operates in the green energy priority mode, it maximizes the utilization of green energy and reduces carbon emissions. Simultaneously, it reduces the impact on the power grid (since the power grid is the final energy source), and operating under a DC bus architecture reduces the number of AC-DC conversions, resulting in higher energy conversion efficiency.

[0047] In one embodiment, such as Figure 4 As shown, step S120 further includes:

[0048] S123. If it is determined that the sum of the real-time output power of the photovoltaic module, the maximum discharge power of the energy storage module, and the maximum discharge power of the photovoltaic-storage-DC-flexible device is less than the total charging demand power, and the total charging demand power is less than or equal to the preset system rated power threshold, then the corresponding DC bus is connected in the switch group of the multi-source power supply module so that the switches of the photovoltaic module and the energy storage module are simultaneously connected to the DC bus, and the current charging power allocation strategy is set to the green electricity priority mode.

[0049] S124. If it is determined that the sum of the real-time output power of the photovoltaic module, the maximum discharge power of the energy storage module, and the maximum discharge power of the photovoltaic-storage-DC-flexible device is less than the total charging demand power, and the total charging demand power is greater than the rated power threshold of the system, then the switch in the switch group that disconnects the DC bus so that both the front-end AC-DC module group and the rear-end AC / DC-DC module group are connected to the power control module is turned on, and the current charging power allocation strategy is set to emergency overcharging mode.

[0050] The emergency overcharging mode is used to enable the power control module to control the multi-source power supply module to supply power from the grid.

[0051] In this embodiment, if the sum of the real-time photovoltaic output power of the photovoltaic module, the maximum discharge power of the energy storage module, and the maximum discharge power of the photovoltaic-storage-DC-flexible device is less than the total charging power demand, and the total charging power demand is less than or equal to a preset system rated power threshold, it indicates that the multi-source power supply module needs to supply power to the charging terminal group through the power control module, and the green energy in the multi-source power supply module is insufficient to meet the charging power requirements of all devices connected to the charging terminal group. However, in this case, the green energy (i.e., the electrical energy provided by the photovoltaic module and the electrical energy provided by the energy storage module) can be used first to supply power to the charging terminal group through the power control module, and then the three-phase AC grid can be used to supply power to achieve charging. Before setting the current charging power allocation strategy to the green power priority mode, the photovoltaic module and the energy storage module in the multi-source power supply module need to be connected to the DC bus simultaneously, which requires turning on or off the corresponding switches in the switch group.

[0052] If the sum of the real-time output power of the photovoltaic module, the maximum discharge power of the energy storage module, and the maximum discharge power of the photovoltaic-storage-DC-flexible device is less than the total charging power requirement, and the total charging power requirement is greater than the system's rated power threshold, it indicates that the multi-source power supply module needs to supply power to the charging terminal group through the power control module, and the green energy in the multi-source power supply module is insufficient to meet the charging power requirements of all devices connected to the charging terminal group. Moreover, the charging power requirements of all devices connected to the charging terminal group are surging and have a need to complete charging quickly. In this case, the power control module needs to be switched from the current working mode to the emergency supercharging mode. At this time, all power needs to be supplied directly through the three-phase AC grid to achieve charging, and the photovoltaic module and the energy storage module do not need to be connected to the DC bus for power supply.

[0053] In one embodiment, step S123 includes:

[0054] If it is determined that the sum of the real-time photovoltaic output power of the photovoltaic module, the maximum discharge power of the energy storage module, and the maximum discharge power of the photovoltaic-storage-DC-flexible device is less than the total charging power requirement, and the total charging power requirement is less than or equal to the preset system rated power threshold, then the moving end of each first switch in the first switch group in the switch group is connected to the first stationary end, each second switch in the second switch group is turned on, each third switch in the third switch group is turned off, the fourth switch group is turned on, and the fifth switch group is turned on.

[0055] Step S124 includes:

[0056] If it is determined that the sum of the real-time photovoltaic output power of the photovoltaic module, the maximum discharge power of the energy storage module, and the maximum discharge power of the photovoltaic-storage-DC-flexible device is less than the total charging power requirement, and the total charging power requirement is greater than the system rated power threshold, then the moving end of each first switch in the first switch group of the switch group is connected to the second stationary end, each second switch in the second switch group is turned off, and each third switch in the third switch group is turned on.

[0057] In this embodiment, please also refer to Figure 1 and Figure 3 If the sum of the real-time photovoltaic output power of the photovoltaic module, the maximum discharge power of the energy storage module, and the maximum discharge power of the photovoltaic-storage-DC-flexible device is less than the total charging demand power, and the total charging demand power is less than or equal to the preset system rated power threshold, then the power control module is still operating in the green power priority mode. Therefore, the switching state of the switch group remains as follows: the moving end of each first switch 31 in the first switch group 30 is connected to the first stationary end; each second switch 41 in the second switch group 40 is turned on; each third switch 51 in the third switch group 50 is turned off; the fourth switch group 81 is turned on; and the fifth switch group 91 is turned on.

[0058] If it is determined that the sum of the real-time photovoltaic output power of the photovoltaic module, the maximum discharge power of the energy storage module, and the maximum discharge power of the photovoltaic-storage-DC-flexible device is less than the total charging power requirement, and the total charging power requirement is greater than the system rated power threshold, then the moving end of each first switch 31 in the first switch group 30 of the switch group is connected to the second stationary end, each second switch 41 in the second switch group 40 is turned off, and each third switch in the third switch group 50 is turned on. At this time, the fourth switch group 81 and the fifth switch group 91 can also be turned off. Under the current on / off state of the switch group, the photovoltaic module 80 and energy storage module 90 can remain connected to the DC bus 60. At this time, the power control module can provide charging methods including grid power supply, photovoltaic module power supply, and energy storage module function. That is, the power from the grid, after being rectified by the front-stage AC-DC module group 20, does not enter the DC bus 60, but directly enters the subsequent rear-stage AC / DC-DC module group 70, and then directly reaches the device to be charged (such as an electric vehicle) through the power control module and charging terminal group. This means that this power supply channel operates independently, and its maximum output power is no longer limited by the power of other devices (photovoltaic modules, energy storage modules) on the DC bus, and can operate at full load. Moreover, the number of front-stage AC-DC module groups and rear-stage AC / DC-DC module groups disconnected / connected to the DC bus can be dynamically adjusted according to the total charging power demand of the charging terminal group. When the power control module operates in emergency supercharging mode, it can simultaneously obtain power from the DC bus (acquiring hybrid energy from photovoltaic / storage / grid) and the pure grid energy through an independent channel in scenarios where charging demand surges, thereby obtaining greater charging power to meet the fast charging or emergency charging needs of the devices to be charged.

[0059] S130. Execute the current charging power allocation strategy so that the power control module charges the devices connected to the charging terminal group.

[0060] In this embodiment, once the current charging power allocation strategy of the power control module is determined, the current charging power allocation strategy can be executed, thereby enabling timely response to charging requests from the devices connected to the charging terminal group. Of course, if the devices connected to the charging terminal group do not request charging, the energy storage module can be charged by the photovoltaic module or the three-phase AC grid.

[0061] In one embodiment, corresponding to the embodiment provided in step S122, if it is determined that the current charging power allocation strategy is a green electricity priority mode, step S130 includes:

[0062] If it is determined that the real-time output power of the photovoltaic module is greater than or equal to the total charging demand power, then the power control module is powered through the photovoltaic module.

[0063] If it is determined that the real-time output power of the photovoltaic is less than the total charging demand power, and the sum of the real-time output power of the photovoltaic, the maximum discharge power of the energy storage module, and the maximum discharge power of the photovoltaic-storage-DC-flexible device is greater than or equal to the total charging demand power, then the power control module is supplied with power in the order of priority: photovoltaic module power supply, energy storage module power supply, and grid power supply.

[0064] Corresponding to the embodiment provided in step S121, if it is determined that the current charging power allocation strategy is the intelligent energy storage scheduling mode, step S130 includes:

[0065] If it is determined that the current electricity price type belongs to the electricity price trough range type, then the energy storage module is powered and charged until it is fully charged and then the power control module is powered in sequence according to the priority order of photovoltaic module power supply and grid power supply.

[0066] If it is determined that the current electricity price type belongs to the normal electricity price range or the peak electricity price range, then the photovoltaic module supplies power to the energy storage module until it is fully charged and stops, and supplies power to the power control module in sequence according to the priority order of power supply from the photovoltaic module and power supply from the energy storage module.

[0067] In this embodiment, corresponding to the embodiment provided in step S122, if it is determined that the current charging power allocation strategy is a green electricity priority mode, it is necessary to further determine whether the real-time output power of the photovoltaic module is greater than the total charging demand power. If it is determined that the real-time output power of the photovoltaic module is greater than or equal to the total charging demand power, it means that the current photovoltaic power generation of the photovoltaic module is sufficient to meet the current charging demand, and the power control module is directly powered through the photovoltaic module to complete the charging of the device to be charged; if it is determined that the real-time output power of the photovoltaic module is less than the total charging demand power, and the sum of the real-time output power of the photovoltaic module, the maximum discharge power of the energy storage module, and the maximum discharge power of the photovoltaic-storage-DC-flexible device is greater than or equal to the total charging demand power, it means that the current charging demand is sufficient through green energy, and the power control module is powered in sequence according to the priority order of photovoltaic module power supply, energy storage module power supply, and grid power supply, wherein grid power supply is only used after green energy is exhausted.

[0068] Corresponding to the embodiment provided in step S121, if it is determined that the current charging power allocation strategy is an intelligent energy storage scheduling mode, it is necessary to further determine whether the current electricity price type belongs to the electricity price trough range, the electricity price normal range, or the electricity price peak range. Only when it is determined that the current electricity price type belongs to the electricity price trough range indicates that the current electricity cost supplied by the grid is low, and the energy storage module can be charged until it is fully charged. Afterwards, if a charging request for charging of the device to be charged connected to the charging terminal group is detected, the power control module is supplied with power in the order of priority between photovoltaic module power supply and grid power supply. At this time, the electrical energy in the energy storage module is saved for use during the electricity price peak range. When it is determined that the current electricity price type belongs to the normal electricity price range or the peak electricity price range, it means that the current electricity cost supplied by the grid is relatively high. At this time, the photovoltaic module supplies power to the energy storage module until it is fully charged and then stops. Afterwards, if a charging request for charging of the device to be charged connected to the charging terminal group is detected, the power control module is supplied in sequence according to the priority order of power supply from the photovoltaic module and power supply from the energy storage module.

[0069] In one embodiment, corresponding to the embodiment provided in step S123, if it is determined that the current charging power allocation strategy is a green electricity priority mode, step S130 includes:

[0070] If it is determined that the real-time output power of the photovoltaic system is less than the total charging demand power, and the current electricity price type belongs to the peak electricity price range type, then the power control module is powered in sequence according to the priority order of photovoltaic module power supply, energy storage module power supply and grid power supply.

[0071] If it is determined that the real-time output power of the photovoltaic system is less than the total charging demand power, and the current electricity price type belongs to the electricity price trough range type or the electricity price normal range type, then the power control module is powered in sequence according to the priority order of photovoltaic module power supply and grid power supply.

[0072] Corresponding to the embodiment provided in step S124, if it is determined that the current charging power allocation strategy is an emergency supercharging mode, step S130 includes:

[0073] The power control module is powered by the three-phase AC power grid as an independent channel, and when the DC bus is not connected to the three-phase AC power grid, the power control module is powered by the photovoltaic module and the energy storage module.

[0074] In this embodiment, corresponding to the embodiment provided in step S123, if it is determined that the current charging power allocation strategy is the green electricity priority mode, it is necessary to further determine whether the real-time output power of the photovoltaic module is greater than the total charging demand power, and to determine the specific type of the electricity price type for the current period. If it is determined that the real-time output power of the photovoltaic module is less than the total charging demand, and the current electricity price is in the peak range, it means that the current photovoltaic power generation of the photovoltaic module is insufficient to meet the current charging demand, but the cost of electricity directly from the grid is currently high. In this case, the power control module can be powered in the order of priority: photovoltaic module power supply, energy storage module power supply, and grid power supply. If it is determined that the real-time output power of the photovoltaic module is less than the total charging demand, and the current electricity price is in the trough range or normal range, it means that the photovoltaic module alone is insufficient to meet the current charging demand. However, the current charging demand can be met by combining grid power supply with the photovoltaic module while ensuring the cost of electricity. In this case, the power control module can be powered in the order of priority: photovoltaic module power supply and grid power supply. Grid power supply is only used when the photovoltaic module cannot supply power.

[0075] Corresponding to the embodiment provided in step S124, if the current charging power allocation strategy is determined to be emergency supercharging mode, the only thing to note is that the power control module is powered by the three-phase AC grid as an independent channel, and when the DC bus is not connected to the three-phase AC grid, the power control module is powered by the photovoltaic module and the energy storage module. Specifically, when the DC bus is not connected to the three-phase AC grid, the charging of the energy storage module cannot be powered by the grid. Only when the photovoltaic module and the energy storage module are powered until power supply fails will the situation of completely independent power supply from the three-phase AC grid occur. As can be seen, when the current charging power allocation strategy is in emergency supercharging mode, the grid's electrical energy, after being rectified by the front-end AC-DC module group, does not enter the DC bus but directly enters the subsequent rear-end AC / DC-DC module group. Then, it directly reaches the device to be charged (such as an electric vehicle) through the power control module and charging terminal group. This means that this power supply channel of the grid operates independently, and its maximum output power is no longer limited by the power of other equipment (photovoltaic modules, energy storage modules) on the DC bus, allowing it to operate at full load. Furthermore, the number of front-end AC-DC module groups and rear-end AC / DC-DC module groups disconnected / connected to the DC bus can be dynamically adjusted according to the total charging power demand of the charging terminal group. When the power control module operates in emergency supercharging mode, it enables the simultaneous acquisition of electrical energy from both the DC bus (obtaining hybrid photovoltaic / storage / grid energy) and pure grid energy through this independent channel in scenarios of surging charging demand, thereby obtaining greater charging power to meet the fast charging or emergency charging needs of the devices to be charged.

[0076] It is evident that the implementation of this method can flexibly adjust the energy supply mode and charging power distribution mode in the charging station according to the conditions corresponding to the working parameters of the three-phase AC grid, photovoltaic module and energy storage module in the multi-source energy supply module of the charging station.

[0077] Figure 5 This is a schematic block diagram of a power control device based on multi-source coordination and a reconfigurable power matrix, provided in an embodiment of the present invention. Figure 5 As shown, corresponding to the power control method based on multi-source coordination and reconfigurable power matrix described above, the present invention also provides a power control device 100 based on multi-source coordination and reconfigurable power matrix. This power control device 100 includes units for executing the power control method based on multi-source coordination and reconfigurable power matrix described above. For example... Figure 1 and Figure 5As shown, the power control device 100 based on multi-source coordination and a reconfigurable power matrix is ​​configured in the power control module 1. The input terminal of the power control module 1 is connected to the multi-source power supply module 2, and the output terminal of the power control module 1 is connected to the charging terminal group 3. The multi-source power supply module 2 is used to provide the power control module 1 with at least grid power supply, photovoltaic / energy storage power supply, and hybrid power supply modes. Please refer to... Figure 5 The power control device 100 based on multi-source coordination and reconfigurable power matrix includes: a power supply parameter set acquisition unit 110, a charging power allocation strategy determination unit 120, and a charging strategy execution control unit 130.

[0078] The power supply parameter set acquisition unit 110 is used to acquire the current power supply parameter set corresponding to the multi-source energy supply module in response to the charging power scheduling command; wherein, the current power supply parameter set includes at least the operating parameters of the three-phase AC grid, the photovoltaic module and the energy storage module;

[0079] The charging power allocation strategy determination unit 120 is used to determine the current on / off state of the switch group in the multi-source power supply module and the current charging power allocation strategy in the multi-source power supply module based on the preset power supply mode decision strategy and the current power supply parameter set.

[0080] The charging strategy execution control unit 130 is used to execute the current charging power allocation strategy so that the power control module charges the devices to be charged connected to the charging terminal group.

[0081] It should be noted that those skilled in the art can clearly understand that the specific implementation process of the power control device 100 based on multi-source collaboration and reconfigurable power matrix and each unit can be referred to the corresponding description in the foregoing method embodiments. For the sake of convenience and brevity, it will not be repeated here.

[0082] It is evident that the implementation of this device can flexibly adjust the energy supply mode and charging power distribution mode in the charging station according to the working parameters of the three-phase AC grid, photovoltaic module and energy storage module in the multi-source energy supply module of the charging station.

[0083] The aforementioned power control device based on multi-source coordination and a reconfigurable power matrix can be implemented as a computer program, which can, for example... Figure 6 It runs on the computer device shown.

[0084] Please see Figure 6 , Figure 6 This is a schematic block diagram of a computer device provided in an embodiment of the present invention. The computer device integrates any of the power control devices based on multi-source coordination and reconfigurable power matrices provided in the embodiments of the present invention.

[0085] See Figure 6 The computer device 400 includes a processor 402, a memory, and a network interface 405 connected via a system bus 401. The memory may include a storage medium 403 and internal memory 404.

[0086] The storage medium 403 may store an operating system 4031 and a computer program 4032. The computer program 4032 includes program instructions that, when executed, cause the processor 402 to perform a power control method based on multi-source coordination and a reconfigurable power matrix.

[0087] The processor 402 is used to provide computing and control capabilities to support the operation of the entire computer device.

[0088] The internal memory 404 provides an environment for the computer program 4032 in the storage medium 403 to run. When the computer program 4032 is executed by the processor 402, the processor 402 can execute the power control method based on multi-source cooperation and reconfigurable power matrix described above.

[0089] This network interface 405 is used for network communication with other devices. Those skilled in the art will understand that... Figure 6 The structure shown is merely a block diagram of a portion of the structure related to the present invention and does not constitute a limitation on the computer device to which the present invention is applied. A specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0090] The processor 402 is used to run the computer program 4032 stored in the memory to implement the power control method based on multi-source coordination and reconfigurable power matrix described above.

[0091] It should be understood that, in this embodiment of the invention, the processor 402 may be a Central Processing Unit (CPU), or it may be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor.

[0092] It will be understood by those skilled in the art that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program includes program instructions and can be stored in a storage medium, which is a computer-readable storage medium. The program instructions are executed by at least one processor in the computer system to implement the process steps of the embodiments of the above methods.

[0093] Therefore, the present invention also provides a computer-readable storage medium. This computer-readable storage medium stores a computer program, wherein the computer program includes program instructions. When executed by a processor, the program instructions cause the processor to perform the aforementioned power control method based on multi-source cooperation and a reconfigurable power matrix.

[0094] The storage medium can be any computer-readable storage medium that can store program code, such as a USB flash drive, external hard drive, read-only memory (ROM), magnetic disk, or optical disk.

[0095] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0096] In the several embodiments provided by this invention, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For example, the division of each unit is merely a logical functional division, and there may be other division methods in actual implementation. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed.

[0097] The steps in the method of this invention can be adjusted, merged, or reduced in order according to actual needs. The units in the device of this invention can be merged, divided, or reduced according to actual needs. Furthermore, the functional units in the various embodiments of this invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0098] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, a terminal, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention.

[0099] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A power control method based on multi-source coordination and a reconfigurable power matrix, applied to a power control module, characterized in that, The input terminal of the power control module is connected to the multi-source power supply module, and the output terminal of the power control module is connected to the charging terminal group. The multi-source power supply module is used to provide the power control module with at least grid power supply, photovoltaic / energy storage power supply, and hybrid power supply modes. The power control method based on multi-source coordination and reconfigurable power matrix includes: In response to a charging power scheduling command, the system acquires the current power supply parameter set corresponding to the multi-source energy supply module; wherein the current power supply parameter set includes at least the operating parameters of the three-phase AC grid, the photovoltaic module, and the energy storage module; acquiring the current power supply parameter set corresponding to the multi-source energy supply module includes: acquiring the real-time photovoltaic output power of the photovoltaic module in the multi-source energy supply module, the total charging demand power of the charging terminal group, the current state of charge of the energy storage module, the maximum discharge power of the energy storage module, the maximum discharge power of the photovoltaic-storage-DC-flexible device corresponding to the photovoltaic module, and the current time-period electricity price type of the three-phase AC grid, and forming the current power supply parameter set; Based on the preset power supply mode decision strategy and the current power supply parameter set, the current on / off state of the switch groups in the multi-source power supply module and the current charging power allocation strategy in the multi-source power supply module are determined; the power supply mode decision strategy includes intelligent energy storage scheduling mode, green power priority mode and emergency supercharging mode; the switch groups include a first switch group, a second switch group and a third switch group; the current on / off state is achieved by switching the on / off state of the first switch group, the second switch group and the third switch group to realize power matrix reconstruction; The current charging power allocation strategy is executed so that the power control module charges the devices connected to the charging terminal group. The multi-source power supply module includes a three-phase AC input terminal, a front-end AC-DC module group, a first switch group, a second switch group, a third switch group, a DC bus, a rear-end AC / DC-DC module group, a photovoltaic module, an energy storage module, a fourth switch group, and a fifth switch group. The input terminal of the three-phase AC input terminal is used to connect to a three-phase AC power grid. The output terminal of the three-phase AC input terminal is connected to the first terminal of the front-end AC-DC module group and also to the input terminal of the third switch group. The output terminal of the third switch group is connected to the first terminal of the rear-end AC / DC-DC module group. The front-end AC-DC module group... The second terminal of the first switch group is connected to the moving terminal of the first switch group; the first stationary terminal of the first switch group is connected to the DC bus; the second stationary terminal of the first switch group is connected to the input terminal of the power control module; the input terminal of the second switch group is connected to the DC bus; the output terminal of the second switch group is connected to the first terminal of the subsequent AC / DC-DC module group; the photovoltaic module is connected to the DC bus through the fourth switch group; the energy storage module is connected to the DC bus through the fifth switch group; the second terminal of the subsequent AC / DC-DC module group is connected to the input terminal of the power control module. The step of determining the current on / off state of the switch group in the multi-source power supply module and the current charging power allocation strategy in the multi-source power supply module based on the preset power supply mode decision strategy and the current power supply parameter set includes: If the total charging demand is determined to be 0, then the corresponding DC bus is connected in the switch group of the multi-source power supply module so that the switches of the photovoltaic module and the energy storage module are simultaneously connected to the DC bus, and the current charging power allocation strategy is set to intelligent energy storage scheduling mode; the intelligent energy storage scheduling mode is used to enable the power control module to control the multi-source power supply module to charge during the off-peak period of the grid electricity price and discharge during the peak period of the grid electricity price. If the sum of the real-time photovoltaic output power of the photovoltaic module, the maximum discharge power of the energy storage module, and the maximum discharge power of the photovoltaic-storage-DC-flexible device is greater than or equal to the total charging demand power in the current power supply parameter set, then the corresponding DC bus in the switch group of the multi-source power supply module is connected so that the switches of the photovoltaic module and the energy storage module are simultaneously connected to the DC bus, and the current charging power allocation strategy is set to the green power priority mode; the green power priority mode is used to enable the power control module to control the multi-source power supply module to supply power in the order of priority of photovoltaic module power supply, energy storage module power supply, and grid power supply.

2. The method according to claim 1, characterized in that, If the total charging demand power is determined to be 0, then connecting the corresponding DC bus in the switch group of the multi-source power supply module so that the photovoltaic module and the energy storage module are simultaneously connected to the DC bus includes: If the total charging demand power is determined to be equal to 0, then the moving end of each first switch in the first switch group in the switch group is connected to the first stationary end, each second switch in the second switch group is turned on, each third switch in the third switch group is turned off, the fourth switch group is turned on, and the fifth switch group is turned on. If the sum of the real-time photovoltaic output power of the photovoltaic module, the maximum dischargeable power of the energy storage module, and the maximum dischargeable power of the photovoltaic-energy storage-DC-flexible device is greater than or equal to the total charging demand power in the current power supply parameter set, then the corresponding switch in the switch group of the multi-source power supply module connected to the DC bus is turned on so that the photovoltaic module and the energy storage module are simultaneously connected to the DC bus, including: If the sum of the real-time photovoltaic output power of the photovoltaic module, the maximum discharge power of the energy storage module, and the maximum discharge power of the photovoltaic-storage-DC-flexible device is greater than or equal to the total charging demand power in the current power supply parameter set, then the moving end of each first switch in the first switch group of the switch group is connected to the first stationary end, each second switch in the second switch group is turned on, each third switch in the third switch group is turned off, the fourth switch group is turned on, and the fifth switch group is turned on.

3. The method according to claim 2, characterized in that, If the current charging power allocation strategy is determined to be a green electricity priority mode, executing the current charging power allocation strategy includes: If it is determined that the real-time output power of the photovoltaic module is greater than or equal to the total charging demand power, then the power control module is powered through the photovoltaic module. If it is determined that the real-time output power of the photovoltaic is less than the total charging demand power, and the sum of the real-time output power of the photovoltaic, the maximum discharge power of the energy storage module, and the maximum discharge power of the photovoltaic-storage-DC-flexible device is greater than or equal to the total charging demand power, then the power control module is supplied with power in the order of priority: photovoltaic module power supply, energy storage module power supply, and grid power supply. If it is determined that the current charging power allocation strategy is an intelligent energy storage scheduling mode, executing the current charging power allocation strategy includes: If it is determined that the current electricity price type belongs to the electricity price trough range type, then the energy storage module is powered and charged until it is fully charged and then the power control module is powered in sequence according to the priority order of photovoltaic module power supply and grid power supply. If it is determined that the current electricity price type belongs to the normal electricity price range or the peak electricity price range, then the photovoltaic module supplies power to the energy storage module until it is fully charged and stops, and supplies power to the power control module in sequence according to the priority order of power supply from the photovoltaic module and power supply from the energy storage module.

4. The method according to claim 1, characterized in that, The step of determining the current on / off state of the switch group in the multi-source power supply module and the current charging power allocation strategy in the multi-source power supply module based on the preset power supply mode decision strategy and the current power supply parameter set further includes: If it is determined that the sum of the real-time output power of the photovoltaic module, the maximum discharge power of the energy storage module, and the maximum discharge power of the photovoltaic-storage-DC-flexible device is less than the total charging power demand, and the total charging power demand is less than or equal to the preset system rated power threshold, then the corresponding DC bus will be connected in the switch group of the multi-source power supply module so that the switches of the photovoltaic module and the energy storage module are simultaneously connected to the DC bus, and the current charging power allocation strategy will be set to the green electricity priority mode. If it is determined that the sum of the real-time photovoltaic output power of the photovoltaic module, the maximum discharge power of the energy storage module, and the maximum discharge power of the photovoltaic-storage-DC-flexible device is less than the total charging power demand, and the total charging power demand is greater than the system rated power threshold, then the switch in the switch group that disconnects the DC bus so that both the front-end AC-DC module group and the rear-end AC / DC-DC module group are connected to the power control module will be turned on, and the current charging power allocation strategy will be set to emergency overcharging mode; the emergency overcharging mode is used to enable the power control module to control the multi-source energy supply module to supply power from the grid.

5. The method according to claim 4, characterized in that, If it is determined that the sum of the real-time photovoltaic output power of the photovoltaic module, the maximum discharge power of the energy storage module, and the maximum discharge power of the photovoltaic-energy storage-DC-flexible device is less than the total charging power demand, and the total charging power demand is less than or equal to a preset system rated power threshold, then the corresponding switch in the switch group of the multi-source power supply module connected to the DC bus is turned on so that the photovoltaic module and the energy storage module are simultaneously connected to the DC bus, including: If it is determined that the sum of the real-time photovoltaic output power of the photovoltaic module, the maximum discharge power of the energy storage module, and the maximum discharge power of the photovoltaic-storage-DC-flexible device is less than the total charging power requirement, and the total charging power requirement is less than or equal to the preset system rated power threshold, then the moving end of each first switch in the first switch group in the switch group is connected to the first stationary end, each second switch in the second switch group is turned on, each third switch in the third switch group is turned off, the fourth switch group is turned on, and the fifth switch group is turned on. If the sum of the real-time photovoltaic output power of the photovoltaic module, the maximum discharge power of the energy storage module, and the maximum discharge power of the photovoltaic-storage-DC-flexible device is less than the total charging demand power, and the total charging demand power is greater than the system rated power threshold, then the switch in the switch group that disconnects the DC bus so that both the front-end AC-DC module group and the rear-end AC / DC-DC module group are connected to the power control module is turned on, including: If it is determined that the sum of the real-time photovoltaic output power of the photovoltaic module, the maximum discharge power of the energy storage module, and the maximum discharge power of the photovoltaic-storage-DC-flexible device is less than the total charging power requirement, and the total charging power requirement is greater than the system rated power threshold, then the moving end of each first switch in the first switch group of the switch group is connected to the second stationary end, each second switch in the second switch group is turned off, and each third switch in the third switch group is turned on.

6. The method according to claim 5, characterized in that, If it is determined that the current charging power allocation strategy is a green electricity priority mode, the execution of the current charging power allocation strategy includes: If it is determined that the real-time output power of the photovoltaic system is less than the total charging demand power, and the current electricity price type belongs to the peak electricity price range type, then the power control module is powered in sequence according to the priority order of photovoltaic module power supply, energy storage module power supply and grid power supply. If it is determined that the real-time output power of the photovoltaic system is less than the total charging demand power, and the current electricity price type belongs to the electricity price trough range type or the electricity price normal range type, then the power control module is powered in sequence according to the priority order of photovoltaic module power supply and grid power supply. If it is determined that the current charging power allocation strategy is an emergency supercharging mode, executing the current charging power allocation strategy includes: The power control module is powered by the three-phase AC power grid as an independent channel, and when the DC bus is not connected to the three-phase AC power grid, the power control module is powered by the photovoltaic module and the energy storage module.

7. A power control device based on multi-source coordination and a reconfigurable power matrix, configured in a power control module, characterized in that, The input terminal of the power control module is connected to the multi-source power supply module, and the output terminal of the power control module is connected to the charging terminal group. The multi-source power supply module is used to provide the power control module with grid power supply, photovoltaic / energy storage power supply and hybrid power supply modes. The power control device based on multi-source coordination and reconfigurable power matrix includes a unit for implementing the power control method based on multi-source coordination and reconfigurable power matrix as described in any one of claims 1-6.

8. A computer device, characterized in that, The computer device includes a memory and a processor. The memory stores a computer program, and when the processor executes the computer program, it implements the power control method based on multi-source coordination and reconfigurable power matrix as described in any one of claims 1-6.

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