Charging pile cluster energy sharing system and distribution method, terminal and storage medium

Abstract

The invention discloses a charging pile cluster energy sharing system and distribution method, a terminal and a storage medium. The system comprises an energy sharing control terminal, a plurality of charging piles and a contactor array connected with the charging piles. The control terminal is in communication connection with each charging pile, receives a power request of any charging pile, determines a power provider according to a real-time state and sends a scheduling instruction; and after a ready signal fed back by the provider is received, the contactor array is controlled to establish a physical electric energy transmission path between the provider and the demand side. The charging pile comprises a power module and a controller, the controller sends a power request when serving as a demand side, responds to an instruction when serving as a provider to control the power module to execute a simulation charging process so as to enter an external power supply state, and feeds back a ready signal to the control terminal. According to the invention, direct physical transmission of electric energy across equipment is realized, single-pile power limitation is broken through, the utilization rate of cluster resources is improved, and safety and reliability of the system are guaranteed through centralized scheduling and a hardware isolation mechanism.

Description

Charging pile cluster energy sharing system and distribution method, terminals and storage media Technical Field

[0001] This invention relates to the field of new energy vehicle charging technology, and in particular to a charging pile cluster energy sharing system, distribution method, equipment and storage medium. Background Technology

[0002] With the rapid development of the new energy vehicle industry, the construction of charging infrastructure is becoming increasingly widespread. However, existing charging stations or charging pile clusters generally suffer from uneven resource allocation. During peak hours, some charging piles operate at full capacity due to high vehicle charging demand, even experiencing insufficient power; while at other times or in certain areas, some charging piles remain idle, with their core resources such as power modules not being fully utilized. This mismatch between resources and demand not only reduces the overall operational efficiency of charging facilities but also affects the user experience.

[0003] Traditional solutions typically involve dynamic power allocation within a single charging station or rely on larger-scale grid-side scheduling, lacking a mechanism for flexibly, efficiently, and cost-effectively sharing and scheduling idle power resources among charging station devices.

[0004] Therefore, there is an urgent need to propose a method for energy sharing and allocation of charging pile clusters to achieve complementary power resources within the charging pile cluster, improve asset utilization, and meet the diverse charging scenario requirements. Summary of the Invention

[0005] To address the aforementioned technical issues, this invention provides a charging pile cluster energy sharing system, allocation method, equipment, and storage medium, which enables complementary power resources within the charging pile cluster, improves asset utilization, and meets diverse charging scenario requirements.

[0006] Specifically, in a first aspect, the present invention provides a charging pile cluster energy sharing system, the system comprising: an energy sharing control terminal, multiple charging piles, and a contactor array connecting the multiple charging piles; the energy sharing control terminal is communicatively connected to the multiple charging piles and is used to receive a power request from any one of the charging piles, wherein the charging pile is a power demander; based on the real-time status of the multiple charging piles, at least one other charging pile is identified as a power provider, and a power scheduling command is sent to the power provider charging pile; and upon receiving a ready signal from the power provider charging pile, the contactor array is controlled to schedule power requests from the power provider charging pile. A physical power transmission path is established between the charging pile and the power demander charging pile; the charging pile includes a power module and a controller, the controller is used to generate and send the power request when the charging pile is the power demander charging pile; when the charging pile is the power provider charging pile, it responds to the power scheduling command, controls its power module to execute a simulated charging process so that the power module enters an active state that can supply power to the outside, and generates the ready signal to send to the energy sharing control terminal; the contactor array is controlled by the energy sharing control terminal and is used to dynamically establish or disconnect the physical power transmission path according to the control command of the energy sharing control terminal.

[0007] By establishing physical power transmission paths between charging piles through a controlled contactor array, direct cross-device power migration is achieved, overcoming the limitation of traditional logical allocation schemes that cannot perform physical energy scheduling. With the help of a simulated charging mechanism, a single charging pile can receive external power, thereby overcoming its own power limitations and meeting the demand for high-power fast charging. An independent energy sharing control terminal centrally schedules the system to ensure stability and reliability. Direct on / off control of the energy path is achieved through physical contactors, forming an inherently safe mechanism with hardware isolation at its core, completely eliminating electrical safety risks.

[0008] Optionally, the power demander charging pile is further used to calculate the power demand in the power request based on the vehicle's initial power demand; when the energy sharing control terminal determines at least one other charging pile as a power provider charging pile based on the real-time status of the multiple charging piles, it is specifically used to: filter charging piles in an unplugged and idle state as candidate charging piles, and obtain the idle power of each candidate charging pile; when the idle power of a single candidate charging pile is greater than or equal to the power demand, select that candidate charging pile as a power provider charging pile; when the idle power of all candidate charging piles is less than the power demand, execute a multi-candidate charging pile combination selection process to determine multiple candidate charging piles as multiple power provider charging piles.

[0009] By selecting unused charging piles that are not plugged in and intelligently matching them with power demand, the system achieves safe and efficient scheduling of idle power resources within the charging cluster. This mechanism aims to maximize available power utilization, supports single-pile response and multi-pile collaboration, and significantly improves the overall utilization rate and economic benefits of charging infrastructure.

[0010] Optionally, the controller controls its power module to perform a simulated charging process, specifically for: sending a forced start command to the power module when no real electric vehicle is connected, simulating a charging load signal, so that the output side of the power module is energized and enters a stable standby state, and the output parameters match the requirements of the power scheduling command.

[0011] By simulating the charging process, the power modules of idle charging piles are safely activated and put into standby mode for external power supply when there are no vehicles. This technology has achieved a key breakthrough in cross-device energy physical scheduling, which not only ensures that the power modules output compliant electrical energy according to instructions, but also ensures the safety and efficiency of the sharing process.

[0012] Optionally, the energy-sharing control terminal is further configured to: monitor the charging status of the power demander charging pile and the power supply status of the power provider charging pile in real time after the physical power transmission path is established; when any of the following termination conditions are triggered: the charging status of the power demander charging pile is in a charging completed state; the charging status of the power demander charging pile is in a user-initiated stop state; the charging status of the power demander charging pile is in a charging abnormal state; or the power supply status of the power provider charging pile is in a power supply abnormal state; send a stop simulated charging command to the power provider charging pile to control its power module to stop energy output; after receiving a status signal from the power provider charging pile indicating that the power module has been turned off, send a disconnection control command to the contactor array to disconnect the physical power transmission path; wherein, the energy-sharing control terminal is further configured to: record the time interval from sending the stop simulated charging command to receiving the status signal, and when the time interval exceeds a preset timeout threshold, send a forced disconnection command to the contactor array to cut off the physical power transmission path.

[0013] In a second aspect, the present invention provides a method for energy sharing and allocation of a charging pile cluster. The allocation method is applied to an energy sharing control terminal as described in any one of the first aspects above. The energy sharing control terminal is communicatively connected to multiple charging piles, which are connected via a contactor array. The method includes: receiving a power request from the power-demanding charging pile; determining at least one other charging pile as a power-providing charging pile based on the real-time status of the multiple charging piles and the power request; sending a power scheduling instruction to the at least one power-providing charging pile; receiving a ready signal from the at least one power-providing charging pile; and, in response to the ready signal, controlling the contactor array to establish a physical power transmission path between the power-providing charging pile and the power-demanding charging pile, so that the power-providing charging pile transmits power to the power-demanding charging pile.

[0014] By using an independent control terminal, a closed-loop scheduling process from request to establishment of physical pathways is achieved, forming a standardized energy scheduling method. This method enables direct scheduling of charging pile hardware, overcoming the technical barrier that energy cannot flow across physical devices.

[0015] Optionally, the power request includes the required power, the real-time status includes the charging gun status and idle power, and the charging gun status includes the unplugged idle state and the plugged-in usage state; the step of determining at least one other charging pile as a power provider charging pile based on the real-time status of the multiple charging piles and the power request specifically includes: screening charging piles with the unplugged idle state as candidate charging piles, and obtaining the idle power of each candidate charging pile; when the idle power of a single candidate charging pile is greater than or equal to the required power, selecting that candidate charging pile as a power provider charging pile; when the idle power of all candidate charging piles is less than the required power, executing a multi-candidate charging pile combination selection process to determine multiple candidate charging piles as multiple power provider charging piles, and the multiple power provider charging piles forming a power provider charging pile group.

[0016] By employing safety screening for unplugged charging stations and precise matching of idle power, a hierarchical scheduling process has been established, ranging from rapid response to single-station coordination. Under the premise of absolutely ensuring that the service in use is not affected, a strategy of prioritizing single-stations and coordinating multiple-stations is adopted to achieve the optimal balance between safety, efficiency, and resource utilization, thus realizing intelligent scheduling of charging station cluster power.

[0017] Optionally, the selection process for multiple candidate charging pile combinations includes: generating multiple potential power provider charging pile combinations from the candidate charging piles according to a preset rule of descending idle power, wherein the number n of charging piles in each combination satisfies: 2≤n≤N, where N is a positive integer not greater than 3, and n is not greater than the current total number of candidate charging piles; for each combination, calculating the total available power P of the combination based on the required power and the idle power of each candidate charging pile in the combination; and selecting the combination with the largest total available power P as the power provider charging pile group.

[0018] By filtering in descending order of idle power and limiting the number of combinations to ≤3, the system can quickly locate the combination with the maximum available power with limited computation, achieving near-optimal scheduling within milliseconds. This significantly improves the system's real-time response capability and decision-making efficiency to high power demands.

[0019] Optionally, calculating the total available power P of the combination specifically includes: determining the first average power P_avg of the combination = the required power / n; for each charging pile in the combination, determining the magnitude of its idle power P_free and the first average power P_avg: if P_free ≥ P_avg, then the available power of the charging pile is calculated according to P_avg; if P_free < P_avg, then the available power of the charging pile is calculated according to its idle power P_free; the total available power P of the combination is the sum of the available power of all charging piles in the combination.

[0020] The average power benchmark method is used to intelligently assess the combined power supply potential, and the unbalanced idle power of each pile is adapted based on the average power demand. This truly reflects the maximum output capacity of the combination, avoids bottlenecks of a single pile, and balances the load of each provider, thereby improving the fairness of scheduling and the service life of the equipment.

[0021] In a third aspect, the present invention provides an energy sharing control terminal, including a memory and a processor, the memory storing a computer program, which, when executed by the processor, causes the processor to perform the steps of the method as described in any of the second aspects above.

[0022] In a fourth aspect, the present invention provides a computer-readable storage medium storing a computer program that, when executed by a processor, causes the processor to perform the steps of the method as described in any of the second aspects above.

[0023] This invention provides a charging pile cluster energy sharing system and method. By introducing an independently controlled energy sharing control terminal, this invention enables direct cross-device transmission of physical electrical energy between charging piles, fundamentally solving the technical bottlenecks of traditional solutions. This system allows a single charging pile to exceed its own power limit by receiving shared electrical energy from other idle piles, meeting the ultra-high-power fast charging needs of vehicles and significantly improving the overall resource utilization of the cluster. The energy sharing control terminal, as the centralized scheduling core, is architecturally decoupled from the charging piles, ensuring stable and reliable scheduling decisions. Simultaneously, millisecond-level on / off control of the energy path is achieved through physical contactors, adhering to a safe timing sequence of physical connection first, followed by power output, forming an inherently safe mechanism based on hardware isolation, completely eliminating electrical safety hazards. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 shows a charging pile cluster energy sharing system proposed in this invention; Figure 2 shows a flowchart of a charging pile cluster energy sharing allocation method of this invention; Figure 3 shows a schematic diagram of the sharing allocation process of a single charging pile meeting power requirements in a charging pile cluster energy sharing allocation method of this invention; Figure 4 shows an internal structure diagram of an energy sharing control terminal in one embodiment. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0027] References to "an embodiment," "an exemplary embodiment," etc., in this invention indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment must include that specific feature, structure, or characteristic. Furthermore, these phrases do not necessarily refer to the same embodiment. Additionally, when a specific feature, structure, or characteristic is described in connection with an embodiment, it is assumed that, whether explicitly described or not, the influence of such feature, structure, or characteristic on other embodiments is within the knowledge of those skilled in the art.

[0028] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "first", "second", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" or "several" means two or more, unless otherwise explicitly specified.

[0030] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0031] To address the shortcomings of traditional solutions for uneven resource allocation in charging pile clusters, this invention proposes a cross-device energy sharing system and allocation method within a charging pile cluster. The core of this system lies in establishing an independent energy sharing control terminal to centrally and intelligently schedule the power resources of each charging pile within the cluster. This method enables charging devices with surplus power to share the energy of their idle power modules with devices lacking sufficient power through a temporary physical energy pathway.

[0032] Please refer to Figure 1, which illustrates a charging pile cluster energy sharing system proposed in this invention. The system includes: an energy sharing control terminal 100, multiple charging piles 200, and a contactor array 300 connecting the multiple charging piles 200. The energy sharing control terminal 100 is communicatively connected to the multiple charging piles 200 and is used to receive power requests from any one of the charging piles 200, where the charging pile 200 acts as the power demander. Based on the real-time status of the multiple charging piles 200, at least one other charging pile 200 is identified as the power provider, and a power scheduling command is sent to the power provider charging pile 200. Upon receiving a ready signal from the power provider charging pile 200, the contactor array 300 is controlled to provide power... A physical power transmission path is established between the charging pile 200 and the power demand charging pile 200. The charging pile 200 includes a power module 220 and a controller 210. The controller 210 is used to generate and send a power request when the charging pile 200 is a power demand charging pile 200. When the charging pile 200 is a power provider charging pile 200, it responds to the power scheduling command, controls its power module 220 to execute a simulated charging process so that the power module 220 enters an active state that can supply power to the outside, and generates a ready signal to send to the energy sharing control terminal 100. The contactor array 300 is controlled by the energy sharing control terminal 100 and is used to dynamically establish or disconnect the physical power transmission path according to the control command of the energy sharing control terminal 100.

[0033] Specifically, at least one other charging pile 200 is identified as the power provider charging pile 200. That is, among all the charging piles 200, apart from the power demander charging pile 200, at least one charging pile 200 is identified as the power provider among the remaining charging piles.

[0034] The charging piles 200 can be connected by a contactor array 300 or a single contactor.

[0035] In this invention, by introducing a contactor array 300 controlled by the energy-sharing terminal 100 and establishing a physical power transmission path between the power provider and the demander, electrical energy can be directly and physically transferred from the power module 220 of one charging pile 200 to another, realizing the migration of energy entities across devices. This overcomes the limitation of traditional solutions, which can only adjust the upper limit of power allocation at the logical level and cannot realize the flow of electrical energy entities across devices. By establishing a physical power transmission path and having the charging pile 200, as the power provider, execute a simulated charging process to activate its power module 220 to supply power externally, the inherent power limit of a single charging pile 200 is broken. That is, a charging pile 200 with a lower rated power can meet the high-power fast charging demand far exceeding its own rated value by receiving shared energy, thereby realizing cluster power sharing. By establishing an independent energy-sharing control terminal 100 as the core scheduler and decoupling it from the charging pile 200 in its architecture, its decisions are not affected by the operating status of any individual charging pile 200, ensuring the stability and reliability of the scheduling logic and preventing interference with basic charging services due to scheduling malfunctions. The energy-sharing terminal 100 directly controls the on / off state of the physical contactor 300 to manage energy paths, achieving safe operation through a combination of hardware and software. When energy transmission needs to be started or terminated, it can prioritize and quickly physically connect or disconnect the path, forming electrical isolation and fundamentally eliminating the risk of mis-supply or backflow of energy, resulting in a higher level of safety and a more direct response.

[0036] In some embodiments, the power request includes information such as power requirement, battery voltage, priority, device ID, and channel ID, wherein the power requirement specifically includes the required voltage and required current. The real-time status of the charging pile 200 includes the plug-in status and idle power, wherein the plug-in status includes an idle state without plugging in and a used state with plugging in, and the idle power is the remaining idle power after subtracting the used power or allocated power from the rated power of the charging pile 200.

[0037] Understandably, the power demander charging pile 200 is also used to calculate the power demand in the power request based on the vehicle's initial power demand: Specifically, an electric vehicle can connect to any charging pile 200. When the charging pile 200 responds to a vehicle connection, it obtains the vehicle's initial power demand and subtracts the vehicle's initial power demand from the idle power inside the charging pile 200 to obtain the power demand in the power request.

[0038] In some embodiments, the energy sharing control terminal 100 filters charging piles 200 that are in an idle state without plugging in as candidate charging piles 200, and obtains the idle power of each candidate charging pile 200; when the idle power of a single candidate charging pile 200 is greater than or equal to the power demand, the candidate charging pile 200 is selected as the power provider charging pile 200; when the idle power of all candidate charging piles 200 is less than the power demand, a multi-candidate charging pile combination selection process is executed to determine multiple candidate charging piles 200 as multiple power provider charging piles 200.

[0039] In this invention, by prioritizing the selection of 200 idle charging piles without plugged-in nozzles and accurately calculating the required power, idle power resources within the cluster can be utilized most effectively. Whether a single pile satisfies the demand or multiple piles work together, the allocation principle aims to maximize the utilization of the total available power, thereby significantly improving the overall utilization rate and return on investment of the charging facilities. This allocation logic ensures that under any request, the system can automatically select the most suitable combination of power providers, avoiding fragmented use of power resources and achieving intelligent load balancing and optimization.

[0040] In some embodiments, the controller 210 of the charging pile 200 controls its power module 220 to execute a simulated charging process. Specifically, it sends a forced start command to the power module 220 when no real electric vehicle is connected, simulating a charging load signal to energize the output side of the power module 220 and put it into a stable standby state, with the output parameters matching the requirements of the power scheduling command. It is understood that the power scheduling command includes the required power level and a set of output parameters. The set of output parameters includes, but is not limited to, the target output port.

[0041] In this invention, by forcibly starting and simulating charging load signals, the power module 220 of the charging pile 200 is safely and reliably activated and enters a stable standby state even when no actual electric vehicle is connected. This is the core technical guarantee for realizing cross-pile physical energy output, ensuring that the power module 220 can output high-quality electrical energy according to instructions, just like a real vehicle. Furthermore, by matching the output parameters with the requirements of the scheduling instructions, it is ensured that the shared electrical energy meets the technical specifications of the demand-side charging pile 200 and its connected vehicles, guaranteeing the safety, stability, and efficiency of the charging process.

[0042] In some embodiments, the energy sharing control terminal 100 is further configured to, after the physical power transmission path is established, monitor in real time the charging status of the power demander charging pile 200 and the power provider charging pile 200; when any termination condition is detected to be triggered, wherein the termination condition includes, but is not limited to: the charging status is a charging completed state, the charging status or power supply status is a user-initiated stop state, or a charging abnormality state occurs, then the following ordered disconnection control process is executed: First, continuously send a stop simulated charging command to the power provider charging pile 200 to control its power module 220 to stop energy output and enter a standby state; then, wait to receive a feedback signal from the power provider charging pile indicating that the power module 220 has been turned off; after confirming that the power module 220 has been turned off... After a safe shutdown, a disconnection control command is sent to the contactor array to cut off the physical power transmission path. The energy-sharing control terminal is further configured to record the time interval from sending the stop simulated charging command to receiving the "power module 220 is off" status. If this time interval exceeds a preset timeout threshold (e.g., 3 seconds), it is determined to be an abnormal shutdown response, and the contactor array 300 is immediately controlled to forcibly disconnect the physical connection to ensure system safety. Through the above-mentioned shutdown-then-power-off timing control strategy, the power module 220 is ensured to shut down under no-load conditions, effectively avoiding electrical shocks caused by load switching and significantly extending the service life of the contactor array 300. Simultaneously, the forced power-off capability is retained in abnormal timeout scenarios, balancing safety and reliability, ensuring the system can quickly and safely return to standby mode.

[0043] Specifically, sending a disconnection control command to the contactor array 300 to disconnect the physical power transmission path involves the contactor array 300 disconnecting the contactors corresponding to the power demander charging pile and the power provider charging pile connected by the contactors, thereby cutting off the physical power transmission path between them.

[0044] In this invention, a strict timing control strategy that first stops power output and then disconnects the physical power transmission path ensures that the energy transmission path can be physically disconnected immediately under any termination conditions, including charging completion, user-initiated stop, or charging anomaly.

[0045] Specifically, when any termination condition is detected, a stop simulated charging command is first sent to the power provider charging pile, causing its power module 220 to actively stop energy output and return to standby state; after confirming that the power module 220 has been safely shut down, a disconnection control command is sent to the contactor array 300 to execute the physical path cut-off operation.

[0046] This design achieves physical isolation, fundamentally eliminating the risk of electric arcing and safety hazards associated with operation under load, and greatly improving the safety of system operation. Simultaneously, while ensuring physical isolation, the power provider, the charging pile 200, is instructed to shut down and return to standby mode, preventing abnormal shutdown of electrical equipment under load, effectively protecting equipment lifespan, and enabling the system to quickly and safely prepare for the next dispatch.

[0047] Please refer to Figure 2, which shows a flowchart of a charging pile cluster energy sharing allocation method according to the present invention. This allocation method is applied to the energy sharing control terminal in the aforementioned embodiment 1, wherein the energy sharing control terminal is communicatively connected to multiple charging piles, which are connected via a contactor array. It can be understood that the connection method here is consistent with the connection method in the aforementioned system. The allocation method specifically includes: receiving a power request from a power-demanding charging pile; determining at least one other charging pile as a power-providing charging pile based on the real-time status and power request of the multiple charging piles; sending a power scheduling command to the at least one power-providing charging pile; receiving a ready signal from the at least one power-providing charging pile; and, in response to the ready signal, controlling the contactor array to establish a physical power transmission path between the power-providing charging pile and the power-demanding charging pile, so that the power-providing charging pile can transmit power to the power-demanding charging pile.

[0048] This invention establishes an independent energy-sharing control terminal, enabling a complete operational process from receiving requests, status assessment, decision-making and scheduling to establishing pathways. Based on this method, a unified station-level or cloud-level energy management platform can be developed to achieve standardized energy scheduling and operation of charging pile clusters of different brands and models, reducing management complexity and increasing the adaptability of the method. By responding to the ready signal and controlling the contactor array to establish a physical power transmission pathway—a crucial step—this method ensures that shared energy can flow directly between the physical ports of different charging piles in a controllable and safe manner. This achieves effective scheduling of physical hardware at the method level, solving the fundamental obstacle of energy transmission across physical devices in existing technologies.

[0049] In some embodiments, the power request includes the required power, which is calculated by subtracting the initial power requirement required after the electric vehicle connects from the available power inside the charging pile. Real-time status includes plug-in status and available power, calculated as the rated power of a charging pile minus its used power / allocated power. Plug-in status includes unplugged and idle state and plugged-in and used state. The step of determining at least one other charging pile as a power provider charging pile based on the real-time status and power request of multiple charging piles specifically includes: screening charging piles in the unplugged and idle state as candidate charging piles, and obtaining the available power of each candidate charging pile; when the available power of a single candidate charging pile is greater than or equal to the required power, selecting that candidate charging pile as a power provider charging pile; when the available power of all candidate charging piles is less than the required power, executing a multi-candidate charging pile combination selection process to determine multiple candidate charging piles as multiple power provider charging piles, with the multiple power provider charging piles forming a power provider charging pile group. The output parameter group includes, but is not limited to, output ports.

[0050] In this invention, a decision-making process for single-pile and multi-pile charging stations is constructed by using the unplugged state as the first screening condition and idle power as the second evaluation criterion. This design first ensures that power scheduling never conflicts with in-use services, guaranteeing safety and feasibility; secondly, it prioritizes achieving rapid satisfaction of a single pile with the lowest system overhead, improving efficiency; and finally, it automatically initiates multi-pile collaboration when a single pile is insufficient, maximizing the potential of idle resources. Thus, it achieves an optimal balance among safety, response speed, and resource utilization, realizing automation, reliability, and high efficiency in power scheduling of charging pile clusters.

[0051] In some embodiments, the selection process for multiple candidate charging pile combinations includes: generating multiple potential power provider charging pile combinations from the candidate charging piles according to a preset rule of descending idle power, wherein the number n of charging piles in each combination satisfies: 2≤n≤N, where N is a positive integer not greater than 3, and n is not greater than the total number of current candidate charging piles; for each combination, calculating the total available power P of the combination based on the required power and the idle power of each candidate charging pile in the combination; and selecting the combination with the largest total available power P as the power provider charging pile group. Specifically, generating multiple potential power provider charging pile combinations according to the preset rule of descending idle power involves: sorting all candidate charging piles in descending order of idle power, and sequentially selecting the top n candidate charging pile combinations to generate multiple potential power provider charging pile combinations. For example, when n=2, the first two candidate charging pile combinations are selected to generate potential power provider charging pile combinations (since n=2, there is only one combination, and this generated power provider charging pile combination is the final power provider charging pile group); when n=3, the first two candidate charging pile combinations are selected to generate potential power provider charging pile combination 1, and the first three candidate charging pile combinations are selected to generate potential power provider charging pile combination 2. For power provider charging pile combination 1 and power provider charging pile combination 2, based on the required power and the idle power of each candidate charging pile in the combination, the total available power P corresponding to combination 1 and combination 2 is calculated respectively; the combination with the largest total available power P is selected as the power provider charging pile group.

[0052] This invention proposes a decision logic that generates potential combinations in descending order of idle power and selects the combination that maximizes the total available power P. This strategy achieves an optimal balance between computational complexity (limiting the number of combinations n≤3) and scheduling efficiency (pursuing the maximum available power). It avoids the enormous computational overhead of traversing all possible combinations and can find near-optimal power provider combinations for large-scale charging clusters within milliseconds, significantly improving the real-time response capability and decision-making efficiency of the scheduling system, making rapid response to high-power demands possible.

[0053] The calculation of the total available power P of the combination specifically includes: determining the first average power P_avg of the combination = demand power / n; for each charging pile in the combination, determining the magnitude of its idle power P_free and the first average power P_avg: if P_free ≥ P_avg, then the available power of the charging pile is calculated according to P_avg; if P_free < P_avg, then the available power of the charging pile is calculated according to its idle power P_free; the total available power P of the combination is the sum of the available power of the charging piles in the combination.

[0054] For example, if the required power is 100kW, and there are three candidate charging piles: A, B, and C, where charging pile A has an idle power of 50kW, charging pile B has an idle power of 35kW, and charging pile C has an idle power of 15kW, then all candidate charging piles are sorted in descending order of idle power: Charging pile A 50kW > Charging pile B 35kW > Charging pile C 15kW. Charging piles A and B are selected as potential combination 1, and charging piles A, B, and C are selected as potential combination 2. The total power that potential combination 1 can provide is calculated as follows: the first average power of combination 1 is 50kW (100 / 2 = 50kW). At this point, charging pile A 50kW = first average power 50kW; charging pile B 35kW < first average power 50kW; therefore, the total power that the two candidate charging piles can provide is 35kW (charging pile B) + 50kW (first average power). 1 (The idle power of charging pile A alone equals the first average power) = 85kW, meaning the total available power of potential combination 1 is 85kW. The total available power of potential combination 2 is calculated as follows: the first average power of combination 2 is 33.4kW (100 / 3 ≈ 33.4kW), where charging pile A (50kW > first average power 33.4kW), charging pile B (35kW > first average power 33.4kW), and charging pile C (15kW < first average power 33.4kW). Therefore, the total available power P of the three candidate charging piles is 15kW (charging pile C) + 33.4kW (first average power). 2 (The idle power of charging piles A and B is greater than the first average power) = 81.8kW, that is, the total power that the potential combination 2 can provide is 81.8kW.

[0055] Subsequently, the total power provided by potential combination 1 (85kW) is greater than the total power provided by potential combination 2 (81.8kW), so potential combination 1 is selected as the final power provider charging pile group.

[0056] This invention employs the first average power P_avg benchmark method to calculate the actual power supply potential of a charging pile combination. By distributing the required power evenly across each charging pile within the combination and using P_avg as a benchmark to measure the actual capacity of each pile, this method can intelligently adapt to the uneven idle power of charging piles, avoiding the reduction of the entire combination's output capacity due to the low power of a single charging pile, and truly reflecting the effective output upper limit of the combination. It achieves fair and efficient load distribution: within the total power allowable range, it ensures that each provider outputs power as close as possible, which is beneficial for thermal management and equipment lifespan.

[0057] Understandably, limiting the number of charging piles for collaborative power supply to three or fewer in this invention offers the following advantages: 1. Keeping the number of collaborative charging piles within a small range facilitates precise synchronization and current sharing control of output power. Too many power sources connected in parallel can introduce complex circulating currents, phase inconsistencies, and other problems, deteriorating power quality and increasing control difficulty. Limiting it to three or fewer ensures stable system operation under a standard three-phase balanced architecture or a simple parallel control strategy, effectively guaranteeing the stability of shared power and the safety of the vehicle battery.

[0058] 2. It greatly simplifies the search and calculation process for the optimal combination. Compared to the exhaustive algorithm that traverses all possible combinations, this strategy reduces the computational complexity from exponential to constant level (only 1, 2, and 3 combinations need to be compared), enabling the energy sharing control terminal to make decisions within milliseconds and quickly respond to vehicle fast charging requests, thus avoiding the impact on user experience caused by excessively long algorithm calculation times.

[0059] 3. It facilitates precise synchronization and current sharing control of output power. Connecting too many power sources in parallel introduces complex issues such as circulating current and phase inconsistencies, deteriorating power quality and increasing control complexity. Limiting to three or fewer units ensures stable system operation under a standard three-phase balanced architecture or a simple parallel control strategy, effectively guaranteeing the stability of shared power and the safety of the vehicle battery.

[0060] 4. It aligns with the mainstream configuration of current charging stations (60-120kW per charging pile, 500-1000kW total station power) and power access capacity. In actual charging scenarios, situations where the power demand for a single charge exceeds twice that of a single charging pile (i.e., requiring three charging piles to work together) are considered extremely high-power scenarios, sufficient to meet the needs of most super-fast charging (e.g., 180kW-360kW). This limitation ensures that the technical solution closely fits the boundaries of actual engineering, avoiding over-designing the system for extremely low-probability ultra-high-power demands, reflecting a high degree of engineering pragmatism.

[0061] In some embodiments, after the step of obtaining the real-time status of each charging pile, the method further includes: if all charging guns are in the "plugged in" state, a rejection sharing request signal is sent to the power-demanding charging pile, the rejection sharing request signal including the reason for rejection; if the total idle power of all candidate charging piles is less than the required power, a power sharing insufficiency signal is sent to the power-demanding charging pile, and the candidate charging piles are sorted in descending order of idle power, and n candidate charging piles are selected sequentially to form a potential power provider charging pile combination, and the total available power of each combination is calculated; the combination with the largest total available power is selected as the power provider charging pile group. It is understood that this invention, by properly handling the two real-world edge scenarios of all charging piles being busy and total power being insufficient, sends clear rejection or insufficiency signals to the user and informs them of the reasons, providing transparent feedback and improving the user-friendliness of the service. At the same time, even when power is insufficient, it still attempts to provide the currently optimal sharing solution to meet user needs to the greatest extent possible.

[0062] To clearly illustrate the above content, three specific implementation methods are provided here: Implementation Method 1: Single charging pile meets power requirements. Scenario description: A charging pile cluster has 4 charging piles (A, B, C, D), each with a rated power of 120kW.

[0063] Initial state:

[0064] When a vehicle supporting high-power fast charging is connected to charging station A, the requested power is 150kW.

[0065] Please refer to Figure 3, which shows a schematic diagram of the power sharing allocation process of a single charging pile in the energy sharing allocation method of a charging pile cluster according to the present invention. Step 1: Charging pile A responds to the vehicle's charging demand and determines its own idle power to be 80kW. The vehicle's initial power demand is 150kW. By subtracting the charging pile A's own idle power of 80kW from the initial power demand of 150kW, the power demand of charging pile A is obtained as 70kW. The corresponding battery voltage, priority, device ID, channel ID, and other information are then obtained. The power demand (70kW), battery voltage, priority, device ID, channel ID, and other information together constitute the power request of charging pile A. This power request is sent to the energy sharing control terminal. Step 2: After receiving the power request, the energy sharing control terminal sends a real-time status query command to multiple charging piles to obtain the real-time status of each charging pile: Charging pile B is in the plugged-in state with an idle power of 60kW; Charging pile C is in the unplugged idle state with an idle power of 120kW; Charging pile D is in the plugged-in state with an idle power of 20kW.

[0066] Step 3: Based on the real-time status of each charging pile, it is found that charging pile C is in an idle state with no charging gun plugged in and its idle power of 120kW is greater than the power demand of 70kW. Therefore, charging pile C is determined to be the power provider. The energy sharing control terminal generates and sends a power scheduling command to charging pile C. The power scheduling command includes the required power of 70kW and the target output port as charging pile A.

[0067] Step 4: After receiving the power dispatch instruction, the controller within charging pile C sends a forced start instruction to its power module, simulating a charging load signal to energize the output side of the power module and put it into a stable standby state, with the output parameters matching the requirements of the aforementioned power dispatch instruction. Once ready, charging pile C outputs a ready signal to the energy sharing control terminal.

[0068] Step 5: After receiving the ready signal, the energy sharing control terminal generates a contactor closing control command and sends it to the contactor corresponding to charging pile A and the contactor corresponding to charging pile C, respectively, so that a physical power transmission path is formed between charging pile A and charging pile C.

[0069] Step 6: Charging pile C begins to transmit 70kW of electrical energy to charging pile A through this physical power transmission path, so that charging pile A can meet the total demand of 150kW for the vehicle.

[0070] Step 7: After charging is complete, charging pile A changes its status to "charging complete". The energy sharing control terminal detects this charging complete status signal and sends a stop simulated charging command to charging pile C to control its power module to stop energy output. After receiving a status signal from charging pile C indicating that the power module has been turned off, the energy sharing control terminal sends a disconnection control command to the contactors corresponding to charging pile A and charging pile C, thereby cutting off the physical power transmission path between charging pile A and charging pile C. The energy sharing control terminal is also configured to record the time interval from sending the stop simulated charging command to receiving the status signal. If the time interval exceeds a preset timeout threshold (e.g., 3 seconds), a forced disconnection command is sent directly to the contactor to achieve electrical hard isolation.

[0071] Step 8: After confirming that the physical power transmission path has been disconnected, the energy sharing control terminal sends a command to the charging pile C to restore the standby state, so that its power module stops outputting and returns to the standby state.

[0072] The allocation results at this time are as follows: • Provider: Charging pile C; • Allocated power: 70kW; • Total power of demander: 80kW (its own) + 70kW (shared) = 150kW; • Remaining power of provider: 120kW - 70kW = 50kW.

[0073] Specific Implementation Method 2: n charging piles meet power requirements (n≤3) Scenario Description: A charging pile cluster has 6 charging piles (A, B, C, D, E, F), each with a rated power of 80kW.

[0074] Initial state:

[0075] When a vehicle supporting high-power fast charging is connected to charging station A, the requested power is 180kW.

[0076] Step 1: Charging pile A responds to the vehicle's charging demand, determining its own idle power to be 50kW and the vehicle's initial power demand to be 180kW. The calculated power demand for charging pile A is 130kW. It then acquires the corresponding battery voltage, priority, device ID, channel ID, and other information. This power demand (130kW), battery voltage, priority, device ID, and channel ID together constitute the power request for charging pile A. This power request is then sent to the energy sharing control terminal. Step 2: Upon receiving the power request, the energy sharing control terminal sends a real-time status query command to multiple charging piles to obtain their real-time status: Charging pile B is in a plugged-in state with an idle power of 40kW; Charging pile C is in a plugged-in state with an idle power of 20kW; Charging pile D is in an unplugged idle state with an idle power of 80kW; Charging pile E is in a plugged-in state with an idle power of 25kW; Charging pile F is in an unplugged idle state with an idle power of 80kW.

[0077] Step 3: Based on the real-time status of each charging pile, determine that charging piles D and F are in an idle state without plugging in, and their idle power is less than the power demand of 130kW. Sort charging piles D and F in descending order of idle power to obtain: Charging pile D (80kW) = Charging pile F (80kW). At this point, we know that n=2, meaning that only charging piles D and F can form a combination. This charging pile combination is the final power provider charging pile group, and its total power P can provide is: First, the first average power of this combination is 65kW (130 / 2=65kW). At this time, charging pile D 80kW = charging pile F 80kW > first average power 65kW; therefore, the total power that the two candidate charging piles D and F can provide is 65kW (first average power). 2 = 130kW, meaning the total power provided by this combination is 130kW, which perfectly meets the aforementioned power requirement. Charging piles D and F are determined as the power provider combination. The energy sharing control terminal generates and sends power scheduling instructions to charging piles D and F respectively. The power scheduling instructions include the required power output of 65kW for each charging pile and the target output port being charging pile A.

[0078] Step 4: After receiving the power dispatch instruction, charging piles D and F send a forced start instruction to their power modules, simulating a charging load signal. This energizes the output side of the power modules and puts them into a stable standby state, with the output parameters matching the requirements of the aforementioned power dispatch instruction. Once ready, charging piles D and F output a ready signal to the energy sharing control terminal.

[0079] Step 5: After receiving the ready signal, the energy sharing control terminal generates a contactor closing control command and sends it to the contactors corresponding to charging piles A, D, and F respectively, so that a physical power transmission path is formed between charging piles A, D, and F.

[0080] Step 6: Charging piles D and F begin to transmit 65kW of electrical energy to charging pile A through this physical power transmission path, so that charging pile A can meet the total demand of 180kW for the vehicle.

[0081] Step 7: After charging is completed, charging pile A updates its status to "charging complete". After detecting the charging complete status signal, the energy sharing control terminal sends a stop simulated charging command to charging piles D and F, which are power providers, to control their power modules to stop energy output. After receiving the status signals from charging piles D and F indicating that the power modules have been turned off, the energy sharing control terminal generates a disconnection control command and sends it to the contactors corresponding to charging piles A, D, and F, respectively, so that the physical power transmission path between charging piles A, D, and F is safely disconnected.

[0082] Step 8: After confirming that the physical power transmission path has been disconnected, the energy sharing control terminal sends a command to charging piles D and F to restore the standby state, so that their power modules remain in the shutdown state and are ready for the next scheduling.

[0083] The allocation results at this time are as follows: • Providers: charging piles D and F; • Allocated power: 65kW, 65kW; • Total power of demanders: 50kW (self) + 65kW (shared) + 65kW (shared) = 180kW; • Remaining power of providers: 80kW - 65kW = 15kW, 80kW - 65kW = 15kW.

[0084] Specific implementation method 3, n charging piles meet power requirements (n≤3) scenario description: A charging pile cluster has 6 charging piles (A, B, C, D, E, F), each with a rated power of 80kW.

[0085] Initial state:

[0086] When a vehicle supporting high-power fast charging is connected to charging station A, the requested power is 180kW.

[0087] Step 1: Charging pile A responds to the vehicle's charging demand, determining its own idle power to be 50kW and the vehicle's initial power demand to be 180kW. The calculated power demand for charging pile A is 130kW. It then acquires the corresponding battery voltage, priority, device ID, channel ID, and other information. This power demand (130kW), battery voltage, priority, device ID, and channel ID together constitute the power request for charging pile A. This power request is then sent to the energy sharing control terminal. Step 2: Upon receiving the power request, the energy sharing control terminal sends a real-time status query command to multiple charging piles to obtain their real-time status: Charging pile B is in a plugged-in state with an idle power of 40kW; Charging pile C is in an unplugged idle state with an idle power of 40kW; Charging pile D is in an unplugged idle state with an idle power of 60kW; Charging pile E is in a plugged-in state with an idle power of 25kW; Charging pile F is in an unplugged idle state with an idle power of 80kW.

[0088] Step 3: Based on the real-time status of each charging pile, determine that charging piles C, D, and F are in an idle state without charging guns plugged in. Their idle power is less than the power demand of 130kW. Sort the charging piles C, D, and F in descending order of idle power to obtain: Charging pile F (80kW) > Charging pile D (60kW) > Charging pile C (40kW). At this point, we know that n=3, that is, there is a potential power supply combination 1 consisting of charging piles F and D, and a potential power supply combination 2 consisting of charging piles F, D, and C. Calculate the total power that can be provided by these two combinations: For combination 1, the first average power of combination 1 is 65kW (130 / 2=65kW). At this time, charging pile F 80kW > first average power 65kW, and charging pile D 60kW < first average power 65kW. Therefore, the total power that combination 1 can provide is 65kW (first average power) + 60kW (charging pile D) = 125kW, that is, the total power that combination 1 can provide is 125kW. For combination 2, the first average power of combination 2 is 43.4kW (130 / 3≈43.4kW). At this time, charging pile F (80kW) > first average power 43.4kW, charging pile D (60kW) > first average power 43.4kW, and charging pile C (40kW) < first average power 43.4kW; therefore, the total power that combination 2 can provide is 43.4kW (first average power). 2 + 40kW (charging pile C) = 126.8kW, meaning the total power available in combination 2 is 126.8kW. It is known that the total power available in combination 1 (125kW) is less than the total power available in combination 2 (126.8kW). Therefore, combination 2 is the final power provider combination, meaning charging piles F, D, and C are determined as the power provider combination. The energy sharing control terminal generates and sends power scheduling instructions to charging piles F, D, and C respectively. These instructions include the required power output of each charging pile (43.4kW, 43.4kW, 40kW), and the target output port is charging pile A. It should be noted that if the final available power is insufficient to meet the required power, no new power modules will be scheduled; this charging pile will only provide the total available power for this charging session.

[0089] Step 4: After receiving the power dispatch instruction, the power providers charging piles F, D, and C send a forced start instruction to their power modules via their controllers. This simulates a charging load signal, energizing the output side of the power modules and putting them into a stable standby state, with the output parameters matching the requirements of the aforementioned power dispatch instruction. Once ready, charging piles F, D, and C output a ready signal to the energy sharing control terminal.

[0090] Step 5: After receiving the ready signal, the energy sharing control terminal generates a contactor closing control command and sends it to the contactors corresponding to charging piles F, D, and C respectively, so that a physical power transmission path is formed between charging piles F, D, and C.

[0091] Step 6: Charging piles F, D, and C begin to transmit electrical energy to charging pile A through this physical power transmission path, so that charging pile A meets the total demand of 180kW for the vehicle.

[0092] Step 7: After charging is completed, charging pile A updates its status to "charging complete". After detecting the charging complete status signal, the energy sharing control terminal sends a stop analog charging command to charging piles F, D and C, which are power providers, to control their power modules to stop energy output. After receiving the status signals from charging piles F, D and C indicating that their respective power modules have been turned off, the energy sharing control terminal generates a disconnection control command and sends it to the contactors corresponding to charging piles F, D and C, respectively, so that the physical power transmission path between F, D, C and charging pile A is safely disconnected.

[0093] Step 8: After confirming that the physical power transmission path has been disconnected, the energy sharing control terminal sends a command to restore standby state to charging piles F, D and C, so that their power modules remain in a shutdown state and are ready for the next scheduling.

[0094] The allocation results at this time are as follows: • Providers: Charging piles F, D, and C; • Allocated power: 43.4kW, 43.4kW, and 40kW; • Total power of demanders: 50kW (self) + 43.4kW (shared) + 43.4kW (shared) + 40kW (shared) = 176.8kW; • Remaining power of providers: 80kW - 43.4kW = 36.6kW (charging pile F), 60kW - 43.4kW = 16.6kW (charging pile D), and 40kW - 40kW = 0kW (charging pile C).

[0095] In summary, the energy sharing and allocation method for charging piles proposed in this invention constitutes a dynamic energy scheduling solution for charging pile clusters that prioritizes safety, responds rapidly, makes intelligent decisions, and calculates accurately. Through a series of specific rules—such as screening for unplugged charging guns, limiting n to 3, and calculating the P_avg benchmark—the feasibility, efficiency, and reliability of this method are ensured. This enables truly flexible scheduling and plug-and-play functionality of idle charging pile hardware resources, significantly improving the operational efficiency and service level of charging stations.

[0096] Figure 4 shows an internal structural diagram of an energy-sharing control terminal in one embodiment. This energy-sharing control terminal can be a terminal or a server. As shown in Figure 4, the energy-sharing control terminal includes a processor, a memory, and a network interface connected via a system bus. The memory includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores an operating system and may also store a computer program. When executed by the processor, this computer program enables the processor to implement a charging pile cluster energy-sharing allocation method. The internal memory may also store a computer program, which, when executed by the processor, enables the processor to execute the charging pile cluster energy-sharing allocation method. Those skilled in the art will understand that the structure shown in Figure 4 is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the energy-sharing control terminal to which the present application is applied. A specific energy-sharing control terminal may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements.

[0097] In one embodiment, a computer-readable storage medium is provided storing a computer program that, when executed by a processor, causes the processor to perform the following steps: receiving a power request from a power-demanding charging pile; determining at least one other charging pile as a power-providing charging pile based on the real-time status of multiple charging piles and the power request; sending a power scheduling instruction to the at least one power-providing charging pile; receiving a ready signal from the at least one power-providing charging pile; and, in response to the ready signal, controlling a contactor array to establish a physical power transmission path between the power-providing charging pile and the power-demanding charging pile, so that the power-providing charging pile can transmit power to the power-demanding charging pile.

[0098] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments described above. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAMbus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and RAMbus dynamic RAM (RDRAM), etc.

[0099] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0100] The above description is merely a specific implementation of this application and is not intended to limit the scope of protection of this application. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. A charging pile cluster energy sharing system, characterized in that, The system includes: an energy-sharing control terminal, multiple charging piles, and a contactor array connecting the multiple charging piles; the energy-sharing control terminal is communicatively connected to the multiple charging piles and is used to receive power requests from any one of the charging piles, which acts as a power demand charging pile; based on the real-time status of the multiple charging piles, it determines at least one other charging pile as a power provider charging pile and sends a power scheduling command to the power provider charging pile; and after receiving a ready signal from the power provider charging pile, it controls the contactor array to establish a physical power transmission path between the power provider charging pile and the power demand charging pile; each charging pile includes a power module and a controller, the controller being used to generate and send a power request when the charging pile acts as a power demand charging pile; and when the charging pile acts as a power provider charging pile, it responds to the power scheduling command, controls its power module to execute a simulated charging process to put the power module into an active state where it can supply power externally, and generates a ready signal to send to the energy-sharing control terminal; the contactor array is controlled by the energy-sharing control terminal and is used to dynamically establish or disconnect the physical power transmission path according to the control command of the energy-sharing control terminal.

2. The charging pile cluster energy sharing system according to claim 1, characterized in that, The power demand-side charging pile is also used to calculate the power demand in the power request based on the vehicle's initial power demand; when the energy sharing control terminal determines at least one other charging pile as a power provider charging pile based on the real-time status of multiple charging piles, it is specifically used to: screen charging piles in an unplugged and idle state as candidate charging piles, and obtain the idle power of each candidate charging pile; when the idle power of a single candidate charging pile is greater than or equal to the power demand, select the candidate charging pile as the power provider charging pile; when the idle power of all candidate charging piles is less than the power demand, execute a multi-candidate charging pile combination selection process to determine multiple candidate charging piles as multiple power provider charging piles.

3. The charging pile cluster energy sharing system according to claim 1, characterized in that, The controller controls its power module to execute a simulated charging process, specifically: when no real electric vehicle is connected, it sends a forced start command to the power module to simulate a charging load signal, so that the output side of the power module is energized and enters a stable standby state, and the output parameters match the requirements of the power scheduling command.

4. The charging pile cluster energy sharing system according to claim 1, characterized in that, The energy-sharing control terminal is further configured to: monitor the charging status of the power demander charging pile and the power supply status of the power provider charging pile in real time after the physical power transmission path is established; when any of the following termination conditions are triggered: the charging status of the power demander charging pile is in a charging completed state; the charging status of the power demander charging pile is in a user-initiated stop state; the charging status of the power demander charging pile is in a charging abnormal state; or the power supply status of the power provider charging pile is in a power supply abnormal state; send a stop simulated charging command to the power provider charging pile to control its power module to stop energy output; after receiving a status signal from the power provider charging pile indicating that the power module has been turned off, send a disconnection control command to the contactor array to disconnect the physical power transmission path; wherein, the energy-sharing control terminal is further configured to: record the time interval from sending the stop simulated charging command to receiving the status signal, and when the time interval exceeds a preset timeout threshold, send a forced disconnection command to the contactor array to cut off the physical power transmission path.

5. A method for sharing and allocating energy among charging pile clusters, implemented using the charging pile cluster energy sharing system as described in any one of claims 1 to 4, characterized in that, The energy-sharing control terminal is communicatively connected to multiple charging piles, which are connected via a contactor array. The method includes: receiving a power request from the power-demanding charging pile; determining at least one other charging pile as a power-providing charging pile based on the real-time status of the multiple charging piles and the power request; sending a power scheduling command to the at least one power-providing charging pile; receiving a ready signal from the at least one power-providing charging pile; and, in response to the ready signal, controlling the contactor array to establish a physical power transmission path between the power-providing charging pile and the power-demanding charging pile, so that the power-providing charging pile can transmit power to the power-demanding charging pile.

6. The energy sharing and allocation method for charging pile clusters according to claim 5, characterized in that, The power request includes the required power, and the real-time status includes the charging gun status and idle power. The charging gun status includes an unplugged idle state and a plugged-in used state. The step of determining at least one other charging pile as a power provider charging pile based on the real-time status of the multiple charging piles and the power request specifically includes: filtering charging piles with an unplugged idle state as candidate charging piles, and obtaining the idle power of each candidate charging pile; when the idle power of a single candidate charging pile is greater than or equal to the required power, selecting that candidate charging pile as a power provider charging pile; when the idle power of all candidate charging piles is less than the required power, executing a multi-candidate charging pile combination selection process to determine multiple candidate charging piles as multiple power provider charging piles, and the multiple power provider charging piles forming a power provider charging pile group.

7. The energy sharing and allocation method for charging pile clusters according to claim 6, characterized in that, The selection process for multiple candidate charging pile combinations includes: generating multiple potential power provider charging pile combinations from the candidate charging piles according to a preset rule of descending idle power, wherein the number n of charging piles in each combination satisfies: 2≤n≤N, where N is a positive integer not greater than 3, and n is not greater than the current total number of candidate charging piles; for each combination, calculating the total available power P of the combination based on the required power and the idle power of each candidate charging pile in the combination; and selecting the combination with the largest total available power P as the power provider charging pile group.

8. The energy sharing and allocation method for charging pile clusters according to claim 7, characterized in that, The calculation of the total available power P of the combination specifically includes: determining the first average power P_avg of the combination = the required power / n; for each charging pile in the combination, determining the magnitude of its idle power P_free and the first average power P_avg: if P_free ≥ P_avg, then the available power of the charging pile is calculated according to P_avg; if P_free < P_avg, then the available power of the charging pile is calculated according to its idle power P_free; the total available power P of the combination is the sum of the available power of all charging piles in the combination.

9. An energy-sharing control terminal, comprising a memory and a processor, the memory storing a computer program, which, when executed by the processor, causes the processor to perform the steps of the method as described in any one of claims 5 to 8.

10. A computer-readable storage medium storing a computer program that, when executed by a processor, causes the processor to perform the steps of the method as claimed in any one of claims 5 to 8.

Images