Three-phase imbalance treatment method, device and equipment based on shared single-phase charging pile and medium

Abstract

The invention discloses a shared single-phase charging pile-based three-phase imbalance treatment method, apparatus and device, and a medium, which are applied to a charging pile sharing platform, and are used for responding to a charging request sent by a user terminal, searching a target charging pile matched with a user vehicle from idle shared charging piles based on the current position of the user terminal, and sending the searched target charging pile to a charging pile sharing platform. Before the electric vehicle is charged, whether the difference value between the load of the target phase connected with the target charging pile and the load of any other phase is larger than the critical value of three-phase imbalance or not is judged, if yes, the target phase-change switch connected with the target charging pile is controlled to act, the target charging pile is switched to other phases, the condition of three-phase imbalance of a power grid is improved, and the service life of the power grid is prolonged. Idle private charging piles are fully utilized, each shared charging pile is connected to a three-phase power grid through a phase-change switch, then charging navigation guidance is sent to a user terminal, and a user vehicle is guided to go to a target charging pile for charging.

Description

Technical Field

[0001] The present invention relates to power control technology, and in particular to a three-phase imbalance control method, device, equipment and medium based on a shared single-phase charging pile. Background Art

[0002] As the market share of new energy vehicles increases, most owners of new energy vehicles have installed single-phase charging piles in their own parking spaces, and each single-phase charging pile is connected to a fixed phase of the transformer according to the load conditions of the station area.

[0003] However, the electricity demands of single-phase users in the substation are different. At this time, if the demand of the single-phase charging pile is in the same phase as the high load, the three-phase imbalance rate of the substation will be aggravated. The three-phase imbalance will lead to increased losses in transformers and lines, reduced output of distribution transformers, and decreased power supply quality. Summary of the invention

[0004] The present invention provides a three-phase unbalance management method, device, equipment and medium based on a shared single-phase charging pile, so as to improve the three-phase unbalance condition of the power grid and make full use of idle private charging piles.

[0005] In a first aspect, the present invention provides a three-phase unbalance management method based on a shared single-phase charging pile, which is applied to a charging pile sharing platform, comprising:

[0006] In response to a charging request sent by a user terminal, searching for a target charging pile matching the user vehicle from idle shared charging piles based on the current location of the user terminal;

[0007] Determine whether the difference between the load of the target phase connected to the target charging pile and the load of any other phase is greater than a critical value of three-phase imbalance;

[0008] If yes, control the target phase-changing switch connected to the target charging pile to switch the target charging pile to other phases, wherein each of the shared charging piles is connected to the three-phase power grid via a phase-changing switch;

[0009] Send charging navigation instructions to the user terminal to guide the user's vehicle to charge at the target charging station.

[0010] Optionally, searching for a target charging pile matching the user vehicle from idle shared charging piles based on the current location of the user terminal includes:

[0011] Determine an idle shared charging pile within a range of a preset distance as a radius with the current location of the user terminal as the center;

[0012] For each idle shared charging pile, planning an optimal path from the current location of the user terminal to the shared charging pile;

[0013] Determine the shortest path from the optimal paths of each idle shared charging pile;

[0014] The shared charging pile corresponding to the shortest path is used as the target charging pile.

[0015] Optionally, the three-phase imbalance control method based on the shared single-phase charging pile also includes:

[0016] When the difference between the load of the target phase connected to the target charging pile and the load of any other phase is not greater than the critical value of three-phase imbalance, the state of the target phase-changing switch is maintained.

[0017] Optionally, controlling the target phase-changing switch connected to the target charging pile to switch the target charging pile to another phase includes:

[0018] Determine the lowest loaded phase with the lowest load from the three phases;

[0019] The target phase-changing switch action is controlled to switch the target charging pile to the phase with the lowest load.

[0020] Optionally, controlling the target phase-changing switch action connected to the target charging pile includes:

[0021] A switching instruction is sent to the substation master controller, and the substation master controller controls the target phase-changing switch in response to the switching instruction. The substation master controller communicates with the target phase-changing switch via a power line carrier.

[0022] Optionally, after sending the charging navigation guidance to the user terminal, the method further includes:

[0023] A temporary access application is sent to the property management platform to which the target charging pile belongs. When the user vehicle arrives at the gate of the parking lot where the target charging pile is located, the property management platform controls the gate to open.

[0024] Optionally, when the user vehicle arrives at the gate of the parking lot where the target charging pile is located, the method further includes:

[0025] A guidance video pre-recorded by the owner of the target charging pile is sent to the user terminal to guide the user vehicle to find the target charging pile in the underground parking lot.

[0026] In a second aspect, the present invention further provides a three-phase unbalance management device based on a shared single-phase charging pile, which is applied to a charging pile sharing platform, comprising:

[0027] A matching module, configured to respond to a charging request sent by a user terminal and search for a target charging pile that matches the user vehicle from idle shared charging piles based on the current location of the user terminal;

[0028] A judgment module, used to judge whether the difference between the load of the target phase connected to the target charging pile and the load of any other phase is greater than a critical value of three-phase imbalance;

[0029] A switching module, used to control the action of a target phase-changing switch connected to the target charging pile to switch the target charging pile to other phases when the difference between the load of the target phase connected to the target charging pile and the load of any other phase is greater than a critical value of three-phase imbalance, wherein each of the shared charging piles is connected to the three-phase power grid via a phase-changing switch;

[0030] The guidance module is used to send charging navigation guidance to the user terminal to guide the user's vehicle to charge at the target charging pile.

[0031] In a third aspect, the present invention further provides an electronic device, comprising:

[0032] one or more processors;

[0033] A storage device for storing one or more programs;

[0034] When the one or more programs are executed by the one or more processors, the one or more processors implement the three-phase imbalance control method based on a shared single-phase charging pile as provided in the first aspect of the present invention.

[0035] In a fourth aspect, the present invention further provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the three-phase imbalance control method based on a shared single-phase charging pile as provided in the first aspect of the present invention.

[0036] The three-phase imbalance control method based on shared single-phase charging piles provided by the present invention is applied to a charging pile sharing platform, and in response to a charging request sent by a user terminal, a target charging pile matching the user's vehicle is searched from idle shared charging piles based on the current position of the user terminal. Before charging the electric vehicle, it is determined whether the difference between the load of the target phase connected to the target charging pile and the load of any other phase is greater than the critical value of the three-phase imbalance. If so, the target phase-changing switch connected to the target charging pile is controlled to operate, and the target charging pile is switched to other phases, so as to improve the three-phase imbalance of the power grid. At the same time, idle private charging piles are fully utilized, wherein each shared charging pile is connected to the three-phase power grid through a phase-changing switch, and then charging navigation instructions are sent to the user terminal to guide the user's vehicle to charge at the target charging pile.

[0037] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0039] Figure 1 A flow chart of a three-phase imbalance control method based on a shared single-phase charging pile provided by the present invention;

[0040] Figure 2 A schematic diagram of the structure of a three-phase unbalanced governance system provided by the present invention;

[0041] Figure 3 A three-phase unbalance management device based on a shared single-phase charging pile provided by the present invention;

[0042] Figure 4 The present invention provides a schematic structural diagram of an electronic device.

[0043] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0044] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0045] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0046] Figure 1 The present invention provides a flowchart of a three-phase unbalanced control method based on a shared single-phase charging pile. The method is applied to a charging pile sharing platform. This embodiment can be applied to regulating the three-phase load of the power grid by using idle private charging piles to control the three-phase unbalanced situation. The method can be executed by a three-phase unbalanced control device based on a shared single-phase charging pile provided in an embodiment of the present invention. The device can be implemented by software and / or hardware, and is usually configured in an electronic device, such as Figure 1 As shown, the three-phase imbalance control method based on the shared single-phase charging pile specifically includes the following steps:

[0047] S101 . In response to a charging request sent by a user terminal, searching for a target charging pile that matches the user vehicle from idle shared charging piles based on the current location of the user terminal.

[0048] In the embodiment of the present invention, as the market share of new energy vehicles increases, the demand for public charging piles increases, but the single-phase charging piles installed in private parking spaces are idle when the owner's vehicle is out, resulting in irrational use of resources. Therefore, the idle sharing of single-phase charging piles in private parking spaces on the platform can be promoted. Specifically, the owner of the single-phase charging pile in the private parking space registers on the charging pile sharing platform, submits the location of the single-phase charging pile, the idle time period that can be shared, the charging voltage, the billing rules and other information, so that the private single-phase charging pile is registered as a shared charging pile on the charging pile sharing platform.

[0049] When other car owners need to charge their electric vehicles, they can send a charging request to the charging pile sharing platform through the user terminal. The charging request may include information such as the current location of the user terminal and the charging voltage required for charging the electric vehicle. In response to the charging request sent by the user terminal, the charging pile sharing platform searches for a target charging pile that matches the user's vehicle from the idle shared charging piles based on the current location of the user terminal. For example, the idle shared charging pile closest to the current location can be searched as the target charging pile, or a path can be planned based on the current location of the user terminal and the location of the nearby idle charging piles, and the charging pile with the shortest path can be selected as the target charging pile.

[0050] Exemplarily, in some embodiments of the present invention, the above step S101 may include the following sub-steps:

[0051] S1011. Determine idle shared charging piles within a radius with a preset distance as the center, centered at the current location of the user terminal.

[0052] In the embodiment of the present invention, a circular range is determined with the current location of the user terminal as the center and a preset distance as the radius, and the idle shared charging piles within the range are determined.

[0053] S1012: For each idle shared charging pile, plan an optimal path from the current location of the user terminal to the shared charging pile.

[0054] Exemplarily, based on the map information, for each idle shared charging pile, an optimal path from the current location of the user terminal to the shared charging pile is planned.

[0055] S1013: Determine the shortest path from the optimal paths of each idle shared charging pile.

[0056] Determine the shortest path from the optimal paths of each idle shared charging pile.

[0057] S1014. Use the shared charging pile corresponding to the shortest path as the target charging pile.

[0058] The shared charging pile corresponding to the shortest path is taken as the target charging pile.

[0059] In other embodiments of the present invention, other factors may also be considered, such as traffic light waiting time, road conditions, etc., and then all influencing factors are combined to calculate the driving time of each idle shared charging pile, and the shared charging pile with the shortest driving time is selected as the target charging pile.

[0060] S102: Determine whether the difference between the load of the target phase connected to the target charging pile and the load of any other phase is greater than a critical value of three-phase imbalance.

[0061] In an embodiment of the present invention, it is determined whether the difference between the load of the target phase connected to the target charging pile and the load of any other phase is greater than the critical value of three-phase imbalance. For example, if the target charging pile is currently connected to the U phase, the difference between the load of the U phase and the load of the V phase, and the difference between the load of the U phase and the load of the W phase are calculated, and it is determined whether the difference between the load of the U phase (i.e., the target phase) connected to the target charging pile and the load of any other phase is greater than the critical value of three-phase imbalance. If so, S103 is executed.

[0062] In some embodiments of the present invention, each substation can be responsible for supplying power to the shared charging piles in an area. If the difference between the load of the U phase (i.e., the target phase) connected to the target charging pile and the load of any other phase is not greater than the critical value of the three-phase imbalance, that is, the substation line of the target charging pile does not have a three-phase imbalance problem, then it is determined whether there is a three-phase imbalance in the nearby substation, and the idle charging piles in the nearby substation with three-phase imbalance are recommended to the user. Exemplarily, the idle shared charging pile closest to the current position is searched from the idle charging piles in the nearby substation with three-phase imbalance as the target charging pile. It is also possible to plan a path based on the current position of the user terminal and the position of the idle charging piles, and select the charging pile with the shortest path as the target charging pile.

[0063] S103: Control the target phase-changing switch connected to the target charging pile to switch the target charging pile to other phases.

[0064] Figure 2 A schematic diagram of the structure of a three-phase unbalanced treatment system provided by the present invention is shown in FIG. Figure 2 As shown, the three phases U, V, and W are drawn from the substation, and each charging pile is connected to the three-phase circuit through a single-phase meter and a phase-changing switch. Each shared charging pile is connected to the three-phase grid through a phase-changing switch. The single-phase meter is used to record the charging degree during the charging process for billing. Figure 2 As shown, for some residential electricity, a phase-changing switch can be connected in series with multiple single-phase meters. For some communities or parking lots with property management platforms, the parking management system can be connected through the parking management system plug-in (data is exchanged between the two parties through the power line carrier and the station area master controller).

[0065] When the difference between the load of the target phase connected to the target charging pile and the load of any other phase is greater than the critical value of three-phase imbalance, the target phase-changing switch connected to the target charging pile is controlled to switch the target charging pile to other phases. For example, if the difference between the load of the U phase (i.e., the target phase) and the load of any other phase is greater than the critical value of three-phase imbalance, the target phase-changing switch connected to the target charging pile is controlled to switch the target charging pile to the V phase or the W phase, thereby avoiding increasing the load of the target phase and improving the three-phase imbalance of the power grid.

[0066] In some embodiments of the present invention, the lowest load phase with the lowest load can be determined from the three phases, and the target phase switching action can be controlled to switch the target charging pile to the lowest load phase. For example, if the current load of the W phase is the lowest, the target charging pile is switched to the W phase.

[0067] In some embodiments of the present invention, when the difference between the load of the target phase connected to the target charging pile and the load of any other phase is not greater than the critical value of three-phase imbalance, the state of the target phase-changing switch is maintained, that is, no phase change is required.

[0068] In some embodiments of the present invention, the substation is responsible for a substation area with a substation master controller, and the substation master controller communicates with the target phase-changing switch through a power line carrier. The substation master controller can upload the three-phase load to the charging pile sharing platform through the Internet of Things system. The charging pile sharing platform can send a switching instruction to the substation master controller, and the substation master controller controls the target phase-changing switch action in response to the switching instruction.

[0069] S104: Send charging navigation instructions to the user terminal to guide the user's vehicle to the target charging station for charging.

[0070] In an embodiment of the present invention, after the target charging pile is determined, a charging navigation guide is sent to the user terminal, that is, the optimal path corresponding to the target charging pile is sent to the user terminal to guide the user vehicle to the target charging pile for charging.

[0071] The three-phase imbalance control method based on shared single-phase charging piles provided by the present invention is applied to a charging pile sharing platform, and in response to a charging request sent by a user terminal, a target charging pile matching the user's vehicle is searched from idle shared charging piles based on the current position of the user terminal. Before charging the electric vehicle, it is determined whether the difference between the load of the target phase connected to the target charging pile and the load of any other phase is greater than the critical value of the three-phase imbalance. If so, the target phase-changing switch connected to the target charging pile is controlled to operate, and the target charging pile is switched to other phases, so as to improve the three-phase imbalance of the power grid. At the same time, idle private charging piles are fully utilized, wherein each shared charging pile is connected to the three-phase power grid through a phase-changing switch, and then charging navigation instructions are sent to the user terminal to guide the user's vehicle to charge at the target charging pile.

[0072] like Figure 2 As shown, for a community or parking lot with a property management platform, after sending the charging navigation instructions to the user terminal, a temporary access application is sent to the property management platform to which the target charging pile belongs. The temporary access application may include vehicle information of the current electric vehicle, such as the license plate number. When the user's vehicle arrives at the gate of the parking lot where the target charging pile is located, the property management platform grants the vehicle temporary access authorization, controls the gate to open, and allows the vehicle to enter.

[0073] In some embodiments of the present invention, for some underground parking lots, it is impossible to rely on traditional GPS navigation to find the target charging pile. Therefore, the owner of the charging pile can record a guide video in advance, and upload the guide video of the journey from the parking lot entrance to the charging pile to the charging pile sharing platform. When the user's vehicle arrives at the gate of the parking lot where the target charging pile is located, the guide video pre-recorded by the owner of the target charging pile is sent to the user terminal to guide the user's vehicle to find the target charging pile in the underground parking lot.

[0074] Figure 3 The present invention provides a three-phase unbalanced treatment device based on a shared single-phase charging pile, which is applied to a charging pile sharing platform, such as Figure 3 As shown, the three-phase unbalance management device based on the shared single-phase charging pile includes:

[0075] A matching module 201 is used to search for a target charging pile matching the user vehicle from idle shared charging piles based on the current location of the user terminal in response to a charging request sent by the user terminal;

[0076] A judgment module 202 is used to judge whether the difference between the load of the target phase connected to the target charging pile and the load of any other phase is greater than a critical value of three-phase imbalance;

[0077] The switching module 203 is used to control the action of the target phase-changing switch connected to the target charging pile to switch the target charging pile to other phases when the difference between the load of the target phase connected to the target charging pile and the load of any other phase is greater than the critical value of the three-phase imbalance, wherein each of the shared charging piles is connected to the three-phase power grid through a phase-changing switch;

[0078] The guidance module 204 is used to send charging navigation guidance to the user terminal to guide the user vehicle to charge at the target charging pile.

[0079] In some embodiments of the present invention, the matching module 201 includes:

[0080] A charging pile determination submodule, used to determine an idle shared charging pile within a range of a preset distance as a radius centered on the current location of the user terminal;

[0081] A path planning submodule, used to plan an optimal path from the current location of the user terminal to the shared charging pile for each idle shared charging pile;

[0082] The shortest path determination submodule is used to determine the shortest path from the optimal paths of each idle shared charging pile;

[0083] The target charging pile determination submodule is used to take the shared charging pile corresponding to the shortest path as the target charging pile.

[0084] In some embodiments of the present invention, the three-phase unbalance management device based on the shared single-phase charging pile further includes:

[0085] The maintaining module is used to maintain the state of the target phase-changing switch when the difference between the load of the target phase connected to the target charging pile and the load of any other phase is not greater than the critical value of the three-phase imbalance.

[0086] In some embodiments of the present invention, the switching module 203 includes:

[0087] A lowest phase determination submodule, used for determining the lowest load phase with the lowest load from the three phases;

[0088] The first switching submodule is used to control the target phase-changing switch action to switch the target charging pile to the phase with the lowest load.

[0089] In some embodiments of the present invention, the switching module 203 further includes:

[0090] The second switching submodule sends a switching instruction to the substation master controller, and the substation master controller controls the target phase-changing switch in response to the switching instruction. The substation master controller communicates with the target phase-changing switch through a power line carrier.

[0091] In some embodiments of the present invention, the three-phase unbalance management device based on the shared single-phase charging pile further includes:

[0092] The access application sending module is used to send a temporary access application to the property management platform to which the target charging pile belongs after sending the charging navigation guidance to the user terminal. When the user vehicle arrives at the gate of the parking lot where the target charging pile is located, the property management platform controls the gate to open.

[0093] In some embodiments of the present invention, the three-phase unbalance management device based on the shared single-phase charging pile further includes:

[0094] The guidance video invention module is used to send a pre-recorded guidance video of the owner of the target charging pile to the user terminal when the user vehicle arrives at the gate of the parking lot where the target charging pile is located, so as to guide the user vehicle to find the target charging pile in the underground parking lot.

[0095] The above-mentioned three-phase imbalance control device based on a shared single-phase charging pile can execute the three-phase imbalance control method based on a shared single-phase charging pile provided in the aforementioned embodiment of the present invention, and has the corresponding functional modules and beneficial effects for executing the three-phase imbalance control method based on a shared single-phase charging pile.

[0096] Figure 4A schematic diagram of the structure of an electronic device provided by the present invention. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device may also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or required herein.

[0097] like Figure 4 As shown, the electronic device includes at least one processor 11, and a memory connected to the at least one processor 11, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 to the random access memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other through a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0098] A number of components in the electronic device are connected to the I / O interface 15, including: an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0099] The processor 11 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as a three-phase unbalance management method based on a shared single-phase charging pile.

[0100] In some embodiments, a three-phase unbalanced governance method based on a shared single-phase charging pile can be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 18. In some embodiments, part or all of the computer program can be loaded and / or installed on an electronic device via ROM 12 and / or a communication unit 19. When the computer program is loaded into RAM 13 and executed by the processor 11, one or more steps of the three-phase unbalanced governance method based on a shared single-phase charging pile described above can be performed. Alternatively, in other embodiments, the processor 11 can be configured to execute a three-phase unbalanced governance method based on a shared single-phase charging pile in any other appropriate manner (for example, by means of firmware).

[0101] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0102] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0103] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in combination with an instruction execution system, device or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0104] To provide interaction with a user, the systems and techniques described herein may be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices may also be used to provide interaction with the user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0105] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0106] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The client and server relationship is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services.

[0107] An embodiment of the present invention also provides a computer program product, including a computer program, which, when executed by a processor, implements a three-phase imbalance control method based on a shared single-phase charging pile as provided in any embodiment of the present application.

[0108] In the process of implementation, the computer program product can be written in one or more programming languages ​​or a combination thereof to perform the computer program code of the present invention, including object-oriented programming languages, such as Java, Smalltalk, C++, and conventional procedural programming languages, such as "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer can be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or can be connected to an external computer (for example, using an Internet service provider to connect through the Internet).

[0109] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0110] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A three-phase imbalance control method based on a shared single-phase charging pile, characterized in that: Applied to charging pile sharing platform, including: In response to a charging request sent by a user terminal, searching for a target charging pile matching the user vehicle from idle shared charging piles based on the current location of the user terminal; Determine whether the difference between the load of the target phase connected to the target charging pile and the load of any other phase is greater than a critical value of three-phase imbalance; If yes, control the target phase-changing switch connected to the target charging pile to switch the target charging pile to other phases, wherein each of the shared charging piles is connected to the three-phase power grid via a phase-changing switch; Send charging navigation instructions to the user terminal to guide the user's vehicle to charge at the target charging station.

2. The three-phase unbalance treatment method based on a shared single-phase charging pile according to claim 1 is characterized in that: Searching for a target charging pile matching the user vehicle from idle shared charging piles based on the current location of the user terminal, including: Determine an idle shared charging pile within a range of a preset distance as a radius centered on the current location of the user terminal; For each idle shared charging pile, planning an optimal path from the current location of the user terminal to the shared charging pile; Determine the shortest path from the optimal paths of each idle shared charging pile; The shared charging pile corresponding to the shortest path is used as the target charging pile.

3. The three-phase unbalance treatment method based on a shared single-phase charging pile according to claim 1 is characterized in that: Also includes: When the difference between the load of the target phase connected to the target charging pile and the load of any other phase is not greater than the critical value of three-phase imbalance, the state of the target phase-changing switch is maintained.

4. The three-phase unbalance treatment method based on a shared single-phase charging pile according to claim 1 is characterized in that: Controlling the target phase-changing switch connected to the target charging pile to switch the target charging pile to another phase, including: Determine the lowest loaded phase with the lowest load from the three phases; The target phase-changing switch action is controlled to switch the target charging pile to the phase with the lowest load.

5. The three-phase imbalance control method based on a shared single-phase charging pile according to any one of claims 1 to 4, characterized in that: Controlling the target phase-changing switch action connected to the target charging pile includes: A switching instruction is sent to the substation master controller, and the substation master controller controls the target phase-changing switch in response to the switching instruction. The substation master controller communicates with the target phase-changing switch via a power line carrier.

6. The three-phase imbalance control method based on a shared single-phase charging pile according to any one of claims 1 to 4, characterized in that: After sending the charging navigation guidance to the user terminal, the method further includes: A temporary access application is sent to the property management platform to which the target charging pile belongs. When the user vehicle arrives at the gate of the parking lot where the target charging pile is located, the property management platform controls the gate to open.

7. The three-phase unbalance treatment method based on a shared single-phase charging pile according to claim 6 is characterized in that: When the user vehicle arrives at the gate of the parking lot where the target charging pile is located, the method further includes: A guidance video pre-recorded by the owner of the target charging pile is sent to the user terminal to guide the user vehicle to find the target charging pile in the underground parking lot.

8. A three-phase unbalance management device based on a shared single-phase charging pile, characterized in that: Applied to charging pile sharing platform, including: A matching module, configured to respond to a charging request sent by a user terminal and search for a target charging pile that matches the user vehicle from idle shared charging piles based on the current location of the user terminal; A judgment module, used to judge whether the difference between the load of the target phase connected to the target charging pile and the load of any other phase is greater than a critical value of three-phase imbalance; A switching module, used to control the action of a target phase-changing switch connected to the target charging pile to switch the target charging pile to other phases when the difference between the load of the target phase connected to the target charging pile and the load of any other phase is greater than a critical value of three-phase imbalance, wherein each of the shared charging piles is connected to the three-phase power grid via a phase-changing switch; The guidance module is used to send charging navigation guidance to the user terminal to guide the user's vehicle to charge at the target charging pile.

9. An electronic device, characterized in that: include: one or more processors; A storage device for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the three-phase imbalance control method based on a shared single-phase charging pile as described in any one of claims 1-7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, a three-phase imbalance control method based on a shared single-phase charging pile is implemented as described in any one of claims 1-7.

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