Control method and device based on current type multi-port flexible interconnection system

Abstract

The invention belongs to the field of flexible interconnection system control, and particularly discloses a control method based on a current type multi-port flexible interconnection system, the method is applied to the flexible interconnection system, and the method comprises the following steps: detecting first electrical load data of each port of the system, transmitting the first electrical load data to an energy management system for storage for user reference; first power utilization load data are read from the energy management system, calculation is carried out based on a control algorithm and the first power utilization load data, control parameters of each port are obtained, and the control algorithm is set by a user based on requirements of a power distribution and utilization system; according to the control parameters, current type converters of all the ports are controlled to operate, so that flexible interconnection between all the ports is achieved; and performing analysis according to the real-time electric energy flexible scheduling data and the control parameters of each port to obtain information required by the power distribution and utilization system. Multi-port electric energy flexible scheduling is achieved through the current type multi-port flexible interconnection system, and the electric energy requirement of a power distribution and utilization system is met.

Description

Technical Field

[0001] The present application belongs to the field of flexible interconnection system control, and more specifically, to a control method and device based on a current-type multi-port flexible interconnection system. Background Art

[0002] Under the background of "dual carbon" goals and the construction of new power systems, the traditional distribution network grid structure can no longer meet the requirements of the flexible interconnection of the new distribution system. The current-type multi-terminal flexible interconnection system connecting the power supply feeders of different substations is the inevitable development stage of the evolution of the traditional distribution network to the advanced form of the new distribution system. The current-type multi-terminal flexible interconnection system can accurately control the transmission of active power from multiple different substations and provide reactive power support. Compared with the traditional substation-level interconnection switch, it significantly improves the substation-level flow transfer capacity and enhances the flexibility of the grid structure. At the same time, in response to the low-carbon development of the source side, a large number of distributed photovoltaics are connected to the distribution network in a decentralized manner.

[0003] However, the high proportion of distributed photovoltaic power generation and the differentiated distribution of load demand have led to the source-load imbalance of the distribution network, resulting in the problems of abandoned photovoltaic power generation and loss of load. In addition, solving the problem of flexible dispatch of electric energy is also a major challenge at present.

[0004] Therefore, how to achieve flexible scheduling of electric energy to meet the electric energy demand of the power distribution system is a technical problem that urgently needs to be solved. Summary of the invention

[0005] In view of the defects of the prior art, the purpose of the present application is to provide a control method and device based on a current-type multi-port flexible interconnection system, aiming to solve the problem caused by flexible scheduling of electric energy.

[0006] The present application provides a control method based on a current-type multi-port flexible interconnection system, which is applied to the flexible interconnection system. The method includes:

[0007] Detecting first power load data of each port of the system, and transmitting the first power load data to the energy management system for storage for user reference;

[0008] Reading first power load data from the energy management system, and performing calculation based on a control algorithm and the first power load data to obtain a control parameter of each port, wherein the control algorithm is set by a user based on power distribution system requirements;

[0009] Controlling the operation of the current source converter of each port according to the control parameter to achieve flexible interconnection between the ports;

[0010] Detect and obtain the real-time flexible energy dispatching data of each port of the flexible interconnection system, analyze the real-time flexible energy dispatching data and control parameters of each port of the flexible interconnection system, and obtain the information required by the power distribution system.

[0011] Optionally, after controlling the operation of the current source converter of each port according to the control parameter to achieve flexible interconnection between the ports, the method further includes:

[0012] When the interconnection function is running, the second power load data of the port is obtained through real-time monitoring;

[0013] The second power load data is saved in the energy management system to update and save the control parameters according to the second power load data. The control parameters are updated on a daily basis. The control parameters are used for the operation of the current source converter to realize flexible scheduling of multi-port power in the flexible interconnection system.

[0014] Optionally, the setting method according to the control algorithm includes:

[0015] Receiving a first input from a user, wherein the first input is an operation of selecting a control algorithm based on a demand of a power distribution system;

[0016] In response to the first input, a control algorithm is set to match the power distribution system requirements.

[0017] Optionally, the control parameter is obtained by:

[0018] receiving a second input from a user, where the second input is a data reading operation;

[0019] reading an energy management system in response to the second input to obtain the first power load data;

[0020] receiving a third input from a user, wherein the third input is a data calculation operation;

[0021] In response to the third input, a calculation is performed based on the control algorithm and the first power load data to obtain a control parameter of each port.

[0022] Optionally, the current-source converter has the function of controlling the bidirectional flow of electric energy in the flexible interconnection system. The current-source converter includes a rectifier and an inverter. Both the rectifier and the inverter use a three-phase bridge circuit, and the control device uses a thyristor.

[0023] Optionally, it also includes:

[0024] The electric energy flexible scheduling data is visualized to show the energy-saving performance of the flexible interconnection system to the user. In a second aspect, the present application also provides a control device based on a current-type multi-port flexible interconnection system, which is applied to a flexible interconnection system, and the device includes:

[0025] A storage module, used for detecting first power load data of each port of the system, and transmitting the first power load data to the energy management system for storage for user reference;

[0026] A reading module, used for reading the first power load data from the energy management system, and performing calculation based on the control algorithm and the first power load data to obtain the control parameters of each port, wherein the control algorithm is set by the user based on the demand of the power distribution system;

[0027] A control module, used for controlling the operation of the current source converter of each port according to the control parameters, so as to realize flexible interconnection between the ports;

[0028] The energy-saving analysis module is used to detect and obtain the real-time flexible energy dispatching data of each port of the flexible interconnection, and analyze the real-time flexible energy dispatching data and control parameters of each port of the flexible interconnection system to obtain the information required by the power distribution system.

[0029] In a third aspect, the present application provides an electronic device comprising: at least one memory for storing programs; and at least one processor for executing the programs stored in the memory. When the program stored in the memory is executed, the processor is used to execute the method described in the first aspect or any possible implementation of the first aspect.

[0030] In a fourth aspect, the present application provides a computer-readable storage medium, which stores a computer program. When the computer program runs on a processor, the processor executes the method described in the first aspect or any possible implementation of the first aspect.

[0031] In a fifth aspect, the present application provides a computer program product. When the computer program product runs on a processor, the processor executes the method described in the first aspect or any possible implementation of the first aspect.

[0032] It can be understood that the beneficial effects of the second to fifth aspects mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here.

[0033] In general, the above technical solutions conceived by this application have the following beneficial effects compared with the prior art:

[0034] (1) This application monitors the power load data of each port in real time, so that the system can accurately control the current source converter, optimize the flow of power, and minimize unnecessary power loss; the control parameters calculated by the control algorithm can achieve accurate control of the current source converter to ensure that the power flows to the port where it is most needed; further, through flexible interconnection and multi-break power flexible scheduling, the optimal power distribution plan can be found to meet the power demand of the power distribution system. By analyzing the power flexible scheduling data in real time, the system can quickly adjust the power flow direction to ensure that the energy is distributed more efficiently between the ports and improve the efficiency of flexible power scheduling.

[0035] (2) This application supports users to customize control algorithms according to actual needs, thereby achieving flexible and efficient flexible dispatch of electric energy to meet the specific needs of the power distribution system. Further, by implementing flexible interconnection and precise flexible dispatch of electric energy, the electricity cost of the power distribution system can be effectively reduced, thereby reducing the overall operating cost.

[0036] (3) The real-time data collection and monitoring capabilities of the system of this application provide data support for subsequent energy-saving improvements. The power distribution system can conduct in-depth analysis based on the scheduling data and continuously optimize the control strategy. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is one of the flow charts of a control method based on a current-type multi-port flexible interconnection system provided in an embodiment of the present application;

[0038] Figure 2 This is a second flow chart of a control method based on a current-type multi-port flexible interconnection system provided in an embodiment of the present application;

[0039] Figure 3 It is a structural schematic diagram of a control device based on a current-type multi-port flexible interconnection system provided in an embodiment of the present application;

[0040] Figure 4 It is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0042] The term "and / or" in this article is a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The symbol " / " in this article indicates that the associated objects are in an or relationship, for example, A / B means A or B.

[0043] The terms "first" and "second" in the specification and claims herein are used to distinguish different objects rather than to describe a specific order of the objects. For example, the first power load data and the second power load data are used to distinguish different power load data rather than to describe a specific order of the power load data.

[0044] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0045] In the description of the embodiments of the present application, unless otherwise specified, "multiple" means two or more than two. For example, multiple processing units refer to two or more processing units, etc.; multiple elements refer to two or more elements, etc.

[0046] Next, the technical solutions provided in the embodiments of the present application are introduced.

[0047] Reference Figure 1 The present application provides a control method based on a current-type multi-port flexible interconnection system, which is applied to the flexible interconnection system. The method includes:

[0048] S101. Detecting the first power load data of each port of the system, transmitting the first power load data to the energy management system for storage for user reference;

[0049] S102. Reading the first power load data from the energy management system, performing calculations based on the control algorithm and the first power load data to obtain control parameters for each port, wherein the control algorithm is set by the user based on the power distribution system requirements;

[0050] S103. Controlling the operation of the current source converter of each port according to the control parameter to achieve flexible interconnection between the ports;

[0051] S104. Detect and obtain the real-time flexible power dispatching data of each port of the flexible interconnection system, analyze the real-time flexible power dispatching data and control parameters of each port of the flexible interconnection system, and obtain the information required by the power distribution system.

[0052] Specifically, through the above step S101, firstly, in the flexible interconnection system, the first power load data of each port of the system is detected in real time using the power meter. The power data of each port is recorded and quickly transmitted to the energy management system (EMS) through the network for archiving. This step ensures that the required data is available to support subsequent decisions and timely reflect the actual load status of each port.

[0053] It should be supplemented that, in the embodiment of the present application, by effectively storing the first power load data in the EMS as historical data for reference, the user can better understand the power demand, setting and adjustment control algorithm of the power distribution system.

[0054] Then, through the above step S102, the first power load data saved is read from the EMS. The control parameters between each two ports are calculated by combining the read data with the preset control algorithm. The control algorithm is set according to the user's power distribution system requirements to ensure flexible adaptation to different scenarios and operation requirements of the power distribution system.

[0055] Furthermore, through the above step S103, the operation of the current source converter is controlled according to the calculated control parameters to achieve flexible interconnection between the ports. Through precise control of the current source converter, the effective flow of electric energy between different ports is ensured, thereby improving the overall economy and flexibility of the system.

[0056] Finally, through the above step S104, the analysis based on the acquired real-time power data and control parameters can help the power distribution system understand the current power flow, resource utilization efficiency and potential risk failures, etc. The power distribution system includes enterprises, power plants, power stations, etc.

[0057] Furthermore, the power distribution system can more effectively respond to market fluctuations and reduce operating costs through the analysis of real-time dispatch data. By effectively managing and dispatching electric energy, the competitiveness of the power distribution system in the power market can be enhanced.

[0058] This application monitors the power load data of each port in real time, so that the system can accurately control the current-source converter, optimize the flow of power, and minimize unnecessary power loss; the control parameters calculated by the control algorithm can achieve accurate control of the current-source converter to ensure that power flows to the port where it is most needed; further, through flexible interconnection and multi-break power flexible scheduling, the optimal power distribution plan can be found to meet the power demand of the power distribution system. By analyzing the power flexible scheduling data in real time, the system can quickly adjust the power flow direction to ensure that the energy is distributed more efficiently between the ports and improve the efficiency of flexible power scheduling.

[0059] This application can achieve higher energy-saving benefits by reducing power losses and unnecessary power consumption. After analyzing the flexible power dispatch data, the main energy consumption points and loss sources can be identified, and targeted optimization can be carried out to improve overall energy efficiency.

[0060] Optionally, after controlling the operation of the current source converter of each port according to the control parameter to achieve flexible interconnection between the ports, the method further includes:

[0061] When the interconnection function is running, the second power load data of the port is obtained through real-time monitoring;

[0062] The second power load data is saved in the energy management system to update and save the control parameters according to the second power load data. The control parameters are updated on a daily basis. The control parameters are used for the operation of the current source converter to realize flexible scheduling of multi-port power in the flexible interconnection system.

[0063] Specifically, in the embodiment of the present application, while the interconnection function is running, the system can obtain comprehensive power consumption information by monitoring the second power load data of the port. Through real-time monitoring, the system can timely reflect the actual power consumption of each port, providing basic data for subsequent decision-making.

[0064] Saving the second power load data to the EMS means that the control parameters can be dynamically updated based on the latest power load information. This update is performed on a daily basis to ensure that the control parameters can reflect the daily power consumption trend and adapt to the power demand in different time periods.

[0065] It should be noted that the second power load data saved in this embodiment is not only used to optimize the control parameters, but also can provide data support for fault analysis when a fault occurs. By comparing the load data during normal operation with the data during the fault, it can help technicians quickly locate the problem and reduce downtime and maintenance costs.

[0066] The updated control parameters will be used for the operation of the current source converter to ensure the reasonable distribution of power among different ports. Through real-time monitoring and analysis of port loads, the system can intelligently adjust the flow of power, optimize resource allocation, and avoid overloading or idleness of certain ports.

[0067] The embodiment of the present application can achieve more efficient power management by acquiring the second power load data of the port through real-time monitoring when running the interconnection function, and saving it to the energy management system for dynamic update. It not only improves the flexibility and adaptability of the system, optimizes the power utilization efficiency, but also enhances the fault handling capability and promotes the realization of energy conservation and emission reduction goals.

[0068] Optionally, the setting method according to the control algorithm includes:

[0069] Receiving a first input from a user, wherein the first input is an operation of selecting a control algorithm based on a demand of a power distribution system;

[0070] In response to the first input, a control algorithm is set to match the power distribution system requirements.

[0071] Accordingly, the control parameter acquisition method includes:

[0072] receiving a second input from a user, where the second input is a data reading operation;

[0073] reading an energy management system in response to the second input to obtain the first power load data;

[0074] receiving a third input from a user, wherein the third input is a data calculation operation;

[0075] In response to the third input, a calculation is performed based on the control algorithm and the first power load data to obtain a control parameter of each port.

[0076] Specifically, this embodiment is an interaction process between a user and a flexible connection system.

[0077] In this embodiment, by receiving the first input from the user (engineer), the user is allowed to select an appropriate control algorithm based on the power distribution system requirements, so that the control strategy can match the specific business requirements and power characteristics of the power distribution system, which helps to improve the pertinence and effectiveness of the control system. After receiving the first input, the system can set the corresponding control algorithm in time. This flexible response mechanism enables the power distribution system to continuously adjust its power management strategy according to real-time needs.

[0078] Furthermore, the system receives the second input from the user and performs a data reading operation, which means that the user can actively obtain the first power load data in real time or history. The system can interact with the EMS based on the second input from the user to obtain the required power data, ensuring the timeliness and accuracy of information transmission.

[0079] Furthermore, the system receives a third input from the user to perform data calculation, which indicates that the user can actively participate in the calculation process of the control parameters. By combining the control algorithm with the first power load data, accurate control parameters are generated to optimize the power distribution between the ports.

[0080] Optionally, the current-source converter has the function of controlling the bidirectional flow of electric energy in the flexible interconnection system. The current-source converter includes a rectifier and an inverter. Both the rectifier and the inverter use a three-phase bridge circuit, and the control device uses a thyristor.

[0081] It should be noted that a thyristor is a semiconductor device that can control the conduction and shutdown of current and is widely used in flexible scheduling and conversion of electric energy. Its advantages include high power handling capability and high switching efficiency.

[0082] The mechanism of reducing power loss by the current type transformer in this embodiment is reflected in that during the flexible dispatch of power, the thyristor controls the current with lower conduction loss and smaller switching loss. Due to its efficient switching characteristics, it can significantly reduce power loss in energy transmission and conversion links and improve the overall efficiency of the power grid.

[0083] Optionally, it also includes:

[0084] The electric energy flexible scheduling data is presented in a visualized manner to demonstrate the energy-saving performance of the flexible interconnection system to users.

[0085] By effectively visualizing the flexible dispatching data of electric energy, the energy-saving characteristics and effectiveness of the flexible interconnection system can be clearly demonstrated to users. The use of appropriate visualization tools and methods can not only improve users' understanding and participation, but also support more comprehensive data-driven decision-making. Continuous visualization analysis will help the distribution and utilization system achieve higher energy efficiency and sustainable development goals.

[0086] Refer to 2, Figure 2 : is a flow chart of a control method based on a current-type multi-port flexible interconnection system provided in an embodiment of the present application, comprising the following steps:

[0087] (1) Before using the flexible interconnection system, engineers will set different control system algorithms based on the power distribution system's requirements for the flexible interconnection system;

[0088] (2) Using an electric energy meter to detect electric energy data at each port in the flexible interconnection system;

[0089] (3) according to step (2), the data detected by the electric energy meter is transmitted to the EMS system for uploading and storage;

[0090] (4) Engineers read data from the EMS system and calculate the system control parameters based on the system control algorithm and the detected port power load. The control parameters should be updated frequently.

[0091] (5) The flexible interconnection system controls the current source converter according to the obtained system control parameters to realize the flexible interconnection function;

[0092] (6) When the flexible interconnection system runs the interconnection function, it will simultaneously detect the power data of the port. The power meter needs to record the data frequently and upload the recorded data to the EMS system. At the same time, the control parameters need to be saved for fault detection.

[0093] (7) According to step (6), the engineer will adjust the system control parameters based on the new data;

[0094] (8) Analyze the energy-saving efficiency of the flexible system by detecting the interconnected power data through the power meter.

[0095] Reference Figure 3 The present application also provides a control device based on a current-type multi-port flexible interconnection system, which is applied to a flexible interconnection system, and the device includes:

[0096] A storage module 310 is used to detect first power load data of each port of the system, and transmit the first power load data to the energy management system for storage for user reference;

[0097] A reading module 320 is used to read the first power load data from the energy management system, and to calculate based on the control algorithm and the first power load data to obtain the control parameters of each port, wherein the control algorithm is set by the user based on the demand of the power distribution system;

[0098] A control module 330, configured to control the operation of the current source converter of each port according to the control parameter, so as to realize flexible interconnection between the ports;

[0099] The energy-saving analysis module 340 is used to detect and obtain the real-time flexible power dispatching data of each port flexible interconnection, and analyze the real-time flexible power dispatching data and control parameters of each port of the flexible interconnection system to obtain the information required by the power distribution system.

[0100] Optionally, an update module is also included, and the update module is used to:

[0101] When the interconnection function is running, the second power load data of the port is obtained through real-time monitoring;

[0102] The second power load data is saved in the energy management system to update and save the control parameters according to the second power load data. The control parameters are updated on a daily basis. The control parameters are used for the operation of the current source converter to realize flexible scheduling of multi-port power in the flexible interconnection system.

[0103] Optionally, the setting method according to the control algorithm includes:

[0104] Receiving a first input from a user, wherein the first input is an operation of selecting a control algorithm based on a demand of a power distribution system;

[0105] In response to the first input, a control algorithm is set to match the power distribution system requirements.

[0106] Optionally, the control parameter is obtained by:

[0107] receiving a second input from a user, where the second input is a data reading operation;

[0108] reading an energy management system in response to the second input to obtain the first power load data;

[0109] receiving a third input from a user, wherein the third input is a data calculation operation;

[0110] In response to the third input, a calculation is performed based on the control algorithm and the first power load data to obtain a control parameter of each port.

[0111] Optionally, the current-source converter has the function of controlling the bidirectional flow of electric energy in the flexible interconnection system. The current-source converter includes a rectifier and an inverter. Both the rectifier and the inverter use a three-phase bridge circuit, and the control device uses a thyristor.

[0112] Optionally, a visualization module is further included, wherein the visualization module is used to:

[0113] The electric energy flexible scheduling data is presented in a visualized manner to demonstrate the energy-saving performance of the flexible interconnection system to users.

[0114] It can be understood that the detailed functional implementation of each of the above-mentioned units / modules can be found in the introduction of the aforementioned method embodiment, and will not be repeated here.

[0115] It should be understood that the above-mentioned device is used to execute the method in the above-mentioned embodiment. The implementation principle and technical effect of the corresponding program module in the device are similar to those described in the above-mentioned method. The working process of the device can refer to the corresponding process in the above-mentioned method, which will not be repeated here.

[0116] Reference Figure 4 Based on the method in the above embodiment, the embodiment of the present application provides an electronic device, which may include: a processor (processor) 410, a communication interface (CommunicationsInterface) 420, a memory (memory) 430 and a communication bus 440, wherein the processor 410, the communication interface 420, and the memory 430 communicate with each other through the communication bus 440. The processor 410 can call the logic instructions in the memory 430 to execute the method in the above embodiment.

[0117] In addition, the logic instructions in the above-mentioned memory 430 can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application.

[0118] Based on the method in the above embodiment, an embodiment of the present application provides a computer-readable storage medium, which stores a computer program. When the computer program runs on a processor, the processor executes the method in the above embodiment.

[0119] Based on the method in the above embodiment, an embodiment of the present application provides a computer program product. When the computer program product runs on a processor, the processor executes the method in the above embodiment.

[0120] It is understandable that the processor in the embodiment of the present application can be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. The general-purpose processor can be a microprocessor or any conventional processor.

[0121] The method steps in the embodiments of the present application can be implemented by hardware or by a processor executing software instructions. The software instructions can be composed of corresponding software modules, and the software modules can be stored in random access memory (RAM), flash memory, read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), registers, hard disks, mobile hard disks, CD-ROMs, or any other form of storage medium known in the art. An exemplary storage medium is coupled to a processor so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and the storage medium can be located in an ASIC.

[0122] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted through the computer-readable storage medium. The computer instructions may be transmitted from a website site, a computer, a server or a data center to another website site, a computer, a server or a data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server or a data center that includes one or more available media integrated. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid state disk (SSD)), etc.

[0123] It should be understood that the various numerical numbers involved in the embodiments of the present application are only used for the convenience of description and are not used to limit the scope of the embodiments of the present application.

[0124] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A control method based on a current-type multi-port flexible interconnection system, characterized in that: Applied to a flexible interconnection system, the method comprises: Detecting first power load data of each port of the system, and transmitting the first power load data to the energy management system for storage for user reference; Reading first power load data from the energy management system, and performing calculation based on a control algorithm and the first power load data to obtain a control parameter of each port, wherein the control algorithm is set by a user based on power distribution system requirements; Controlling the operation of the current source converter of each port according to the control parameter to achieve flexible interconnection between the ports; Detect and obtain the real-time flexible power dispatching data of each port flexible interconnection, analyze the real-time flexible power dispatching data and control parameters of each port of the flexible interconnection system, and obtain the information required by the power distribution system.

2. The control method according to claim 1, characterized in that: After controlling the operation of the current source converters of each port according to the control parameters to realize flexible interconnection between the ports, the method further includes: When the interconnection function is running, the second power load data of the port is obtained through real-time monitoring; The second power load data is saved in the energy management system to update and save the control parameters according to the second power load data. The control parameters are updated on a daily basis. The control parameters are used for the operation of the current source converter to realize flexible scheduling of multi-port power in the flexible interconnection system.

3. The control method according to claim 1, characterized in that: The setting method according to the control algorithm includes: Receiving a first input from a user, wherein the first input is an operation of selecting a control algorithm based on a demand of a power distribution system; In response to the first input, a control algorithm is set to match the power distribution system requirements.

4. The control method according to claim 1, characterized in that: The control parameter acquisition method includes: receiving a second input from a user, where the second input is a data reading operation; reading an energy management system in response to the second input to obtain the first power load data; receiving a third input from a user, wherein the third input is a data calculation operation; In response to the third input, a calculation is performed based on the control algorithm and the first power load data to obtain a control parameter of each port.

5. The control method according to claim 1, characterized in that: The current-source converter has the function of controlling the bidirectional flow of electric energy in the flexible interconnection system. The current-source converter includes a rectifier and an inverter. Both the rectifier and the inverter use a three-phase bridge circuit, and the control device uses a thyristor.

6. The control method according to claim 1, characterized in that: Also includes: The electric energy flexible scheduling data is presented in a visualized manner to demonstrate the energy-saving performance of the flexible interconnection system to users.

7. A control device based on a current-type multi-port flexible interconnection system, characterized in that: Applied to a flexible interconnection system, the device comprises: A storage module, used for detecting first power load data of each port of the system, and transmitting the first power load data to the energy management system for storage for user reference; A reading module, used for reading the first power load data from the energy management system, and performing calculation based on the control algorithm and the first power load data to obtain the control parameters of each port, wherein the control algorithm is set by the user based on the demand of the power distribution system; A control module, used for controlling the operation of the current source converter of each port according to the control parameters, so as to realize flexible interconnection between the ports; The energy-saving analysis module is used to detect and obtain the real-time flexible energy dispatching data of each port of the flexible interconnection, and analyze the real-time flexible energy dispatching data and control parameters of each port of the flexible interconnection system to obtain the information required by the power distribution system.

8. A computer-readable storage medium storing a computer program, characterized in that: When the computer program runs on a processor, the processor is caused to execute the method according to any one of claims 1 to 6.

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