Compact super-capacity valve control system and method for network-forming type converter valve

Abstract

The invention provides a compact super-capacity valve control system and method for a network construction type converter valve. The compact super-capacity valve control system comprises a plurality of valve control hosts; a plurality of valve control hosts are integrated in a case; each valve control host comprises a valve control host core board and a plurality of interface boards; the valve control host core board is respectively connected with each interface board, and each interface board is respectively connected with part of the super-capacity sub-modules in all the super-capacity sub-modules; the valve control host core board is used for processing the collected state data of each super-capacity sub-module to obtain a processing result of each super-capacity sub-module; generating a control signal of each super-capacitance sub-module according to the processing result of each super-capacitance sub-module; a control signal of each super-capacity sub-module is distributed to the corresponding interface board; and the interface board is used for controlling the super-capacitance sub-module corresponding to the control signal according to the received control signal. And a plurality of valve control hosts form a case, so that the overall link delay is shortened, and the reliability of normal operation of equipment is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of HVDC transmission and power electronics, and particularly relates to a compact ultra-capacitance valve control system and method for a network-forming converter valve. Background Art

[0002] To fill the technical gap in the active inertia support of advanced technical equipment in the power industry, network-forming control and protection devices have emerged as the times require. Network-forming control and protection devices mainly include, but are not limited to, control devices such as network-forming SVG (static var generator) and network-forming energy storage devices.

[0003] The grid-side ultra-capacitance network-forming SVG device is the latest cutting-edge technology in the field of flexible DC that adopts the topology of "modular multilevel converter + super capacitor". Its core is that the super capacitor can store energy during steady-state operation and provide inertia support and active / reactive support during transient processes. Therefore, the valve control of the super capacitor valve is the top priority of this technology.

[0004] Traditional valve control of modular multilevel converters, such as the relatively mainstream modular multilevel converter valve control in recent years, adopts a multi-layer design of valve control host + arm control chassis + interface chassis + sub-module central control board, as Figure 1 shown. The advantage of this design is that the functions of each layer are clearly divided and each performs its own duties. However, for some scenarios with relatively few module numbers and relatively low voltage levels, the multi-layer design of the valve control system architecture is not very necessary, which will not only lead to a huge increase in cost, but also increase the overall link delay and reduce the reliability of the normal operation of the equipment. Summary of the Invention

[0005] To overcome the deficiencies of the above-mentioned prior art, in a first aspect, the present invention proposes a compact ultra-capacitance valve control system for a network-forming converter valve, including: a plurality of valve control hosts, a plurality of ultra-capacitance sub-modules, and a chassis; a plurality of the valve control hosts are integrated in one chassis and then connected to external network-forming devices; a plurality of the ultra-capacitance sub-modules are connected to the external power grid;

[0006] Each of the valve control hosts includes: a valve control host core board and a plurality of interface boards; the valve control host core board is respectively connected to each of the interface boards, and each of the interface boards is respectively connected to some of the ultra-capacitance sub-modules among all the ultra-capacitance sub-modules;

[0007] The valve control host core board is configured to process the status data of each of the ultra-capacitance sub-modules collected to obtain a processing result of each of the ultra-capacitance sub-modules; generate a control signal for each of the ultra-capacitance sub-modules according to the processing result of each of the ultra-capacitance sub-modules; and distribute the control signal of each of the ultra-capacitance sub-modules to the corresponding interface board;

[0008] The interface board is used to control the supercapacitor sub-module corresponding to the received control signal according to the received control signal.

[0009] Preferably, the system further includes: a plurality of monitoring hosts, and the valve control host core board in each valve control host is respectively connected to one of the monitoring hosts.

[0010] Preferably, the system further includes: a plurality of supercapacitor clusters, and each interface board is respectively connected to some of the supercapacitor clusters in all the supercapacitor clusters; each supercapacitor cluster is respectively connected to all the monitoring hosts.

[0011] Preferably, the system further includes: a converter;

[0012] Each supercapacitor sub-module is respectively connected to the converter, and the converter is connected to the power grid;

[0013] The supercapacitor sub-module is used to store the energy of the converter in each supercapacitor cluster respectively when the converter provides energy; when the converter needs energy, it absorbs energy from each supercapacitor cluster and sends it to the converter.

[0014] Preferably, the supercapacitor cluster is used to send its own status information to each monitoring host and each valve control host core board respectively;

[0015] The supercapacitor sub-module is further used to send its own status information to each valve control host core board respectively;

[0016] The valve control host core board is further used to convert the status information of each supercapacitor cluster and / or each supercapacitor sub-module into the status data of the corresponding supercapacitor sub-module after receiving the status information of each supercapacitor cluster and / or each supercapacitor sub-module;

[0017] The monitoring host is used to monitor the status information of each supercapacitor cluster received;

[0018] The status data of the supercapacitor sub-module includes: the voltage status data of the supercapacitor sub-module and the temperature status data of the supercapacitor sub-module.

[0019] Preferably, the converter includes: a plurality of insulated gate bipolar transistors, and the plurality of insulated gate bipolar transistors are connected in a bridge connection manner.

[0020] Preferably, the system further includes: a plurality of supercapacitors, and each supercapacitor sub-module is connected in parallel with one of the supercapacitors;

[0021] The super capacitor is used to store the energy of the super capacitor sub-module connected in parallel with it.

[0022] Preferably, each of the super capacitor sub-modules is further configured to absorb the voltage of the power grid when all the super capacitor sub-modules are locked; the multiple super capacitor sub-modules are further configured to perform equalizing charging after the voltage absorbed by each super capacitor sub-module is stabilized.

[0023] In a second aspect, the present invention application also proposes a compact super capacitor valve control method for a network-forming converter valve, which is applied to the compact super capacitor valve control system of the network-forming converter valve. The method includes:

[0024] Using the valve control host core board in the compact super capacitor valve control system of the network-forming converter valve to process the status data of each super capacitor sub-module in the compact super capacitor valve control system of the network-forming converter valve, and obtaining the processing result of each super capacitor sub-module; generating a control signal for each super capacitor sub-module according to the processing result of each super capacitor sub-module; distributing the control signal of each super capacitor sub-module to the interface board in the corresponding compact super capacitor valve control system of the network-forming converter valve;

[0025] Using the interface board to control the super capacitor sub-module corresponding to the received control signal according to the received control signal.

[0026] In a third aspect, the present invention application also proposes an electronic device, including: at least one processor and a memory; the memory and the processor are connected by a bus;

[0027] The memory is used to store one or more programs;

[0028] When the one or more programs are executed by the at least one processor, the above-mentioned compact super capacitor valve control method for a network-forming converter valve is implemented.

[0029] In a fourth aspect, the present invention application also proposes a readable storage medium, on which an execution program is stored. When the execution program is executed, the above-mentioned compact super capacitor valve control method for a network-forming converter valve is implemented.

[0030] Compared with the closest prior art, the beneficial effects of the present invention application are as follows:

[0031] Compactified Supercapacitor Valve Control System and Method for a Network-Forming Converter Valve of the Present Invention, including: multiple valve control hosts, multiple supercapacitor sub-modules, and a chassis; multiple of the valve control hosts are integrated in one chassis and then connected to an external network-forming device; multiple of the supercapacitor sub-modules are connected to an external power grid; each of the valve control hosts includes: a valve control host core board and multiple interface boards; the valve control host core board is respectively connected to each of the interface boards, and each of the interface boards is respectively connected to some of the supercapacitor sub-modules among all the supercapacitor sub-modules; the valve control host core board is used to process the status data of each of the supercapacitor sub-modules collected to obtain a processing result for each of the supercapacitor sub-modules; generate a control signal for each of the supercapacitor sub-modules according to the processing result of each of the supercapacitor sub-modules; distribute the control signal of each of the supercapacitor sub-modules to the corresponding interface board; the interface board is used to control the supercapacitor sub-module corresponding to the control signal according to the received control signal. Multiple valve control hosts are in one chassis, reducing the usage cost, and shortening the overall link delay, increasing the reliability of the normal operation of the device. Description of the Drawings

[0032] Figure 1 Architecture diagram of the traditional modular multilevel converter valve control for the background technology;

[0033] Figure 2 Architecture diagram of a compactified supercapacitor valve control system for a network-forming converter valve provided by the present application;

[0034] Figure 3 Structure diagram of the valve control host of a compactified supercapacitor valve control system for a network-forming converter valve provided by the present application;

[0035] Figure 4 Structure diagram of the converter of a compactified supercapacitor valve control system for a network-forming converter valve provided by the present application;

[0036] Figure 5 Structure diagram of the supercapacitor sub-module of a compactified supercapacitor valve control system for a network-forming converter valve provided by the present application;

[0037] Figure 6 Workflow diagram of the supercapacitor sub-module of a compactified supercapacitor valve control system for a network-forming converter valve provided by the present application;

[0038] Figure 7 Startup flowchart of the supercapacitor of a compactified supercapacitor valve control system for a network-forming converter valve provided by the present application;

[0039] Figure 8 Flowchart of a compactified supercapacitor valve control method for a network-forming converter valve provided by the present application;

[0040] Figure 9 Schematic diagram of the operation of an electronic device provided for this invention application. Specific embodiments

[0041] The following further elaborates in detail on the specific embodiments of this invention application in conjunction with the attached drawings.

[0042] Embodiment 1:

[0043] As Figure 2 、 Figure 3 shown, this invention proposes a compact super-capacitor valve control system for a network-forming converter valve, including: a plurality of valve control hosts, a plurality of super-capacitor sub-modules, and a chassis; a plurality of the valve control hosts are integrated in one of the chassis and then connected to an external network-forming device; a plurality of the super-capacitor sub-modules are connected to an external power grid;

[0044] Each of the valve control hosts includes: a valve control host core board and a plurality of interface boards; the valve control host core board is respectively connected to each of the interface boards, and each of the interface boards is respectively connected to some of the super-capacitor sub-modules among all the super-capacitor sub-modules;

[0045] The valve control host core board is used to process the status data of each of the super-capacitor sub-modules collected to obtain the processing result of each of the super-capacitor sub-modules; generate a control signal for each of the super-capacitor sub-modules according to the processing result of each of the super-capacitor sub-modules; distribute the control signal of each of the super-capacitor sub-modules to the corresponding interface board;

[0046] The interface board is used to control the super-capacitor sub-module corresponding to the control signal according to the received control signal.

[0047] As described above, the network-forming device is used to control the valve control host so that the valve control host controls all the super-capacitor sub-modules to be put into or cut out; when the super-capacitor sub-module needs to be charged, the power grid charges the super-capacitor sub-module; the compact super-capacitor valve control system of the network-forming converter valve may include two completely identical valve control hosts that are backup to each other, and a single valve control host is composed of a valve control host core board and a plurality of interface boards;

[0048] Furthermore, the system further includes: a plurality of monitoring hosts, and the valve control host core board in each of the valve control hosts is respectively connected to one of the monitoring hosts.

[0049] The design architecture of the present invention optimizes the traditional four - layer design of the valve control of the modular multilevel converter into a two - layer design with the valve control host as one layer and the supercapacitor sub - module as one layer, which is applied to the control of the compact supercapacitor valve control system of the network - forming converter valve, greatly reducing the hardware requirements of the chassis and the hardware cost. At the same time, since a backplane with wire routing can be provided on the back of a chassis, multiple valve control host core boards can communicate with each other through the backplane, increasing the reliability of communication and the synchronization between the valve control host core boards. The link delay of data transmission is greatly reduced. The complexity of the overall system is reduced, the probability of hardware problems is decreased, and the reliability of the system is improved.

[0050] Furthermore, the system further includes: multiple supercapacitor clusters, each of the interface boards is respectively connected to some of the supercapacitor clusters in all of the supercapacitor clusters; each of the supercapacitor clusters is respectively connected to all of the monitoring hosts.

[0051] As described above, the valve control host communicates with the supercapacitor sub - modules and the supercapacitor clusters respectively through the interface board; both the supercapacitor sub - modules and the supercapacitor clusters send their own status information to the interface board and receive control commands from the interface board. After receiving the information of the supercapacitor sub - modules and the supercapacitor clusters, the interface board sends the data to the valve control host core board for processing; the valve control host core board sends the processed commands to the interface board, and the interface board then distributes them to each supercapacitor sub - module and supercapacitor cluster. The compact supercapacitor valve control system of the network - forming converter valve refers to the design idea of the traditional modular multilevel converter valve control (MMC valve) in design, and at the same time optimizes its complex control layer. The main difference between the compact supercapacitor valve control system of the network - forming converter valve and the traditional MMC valve is that supercapacitor clusters are connected in parallel in the compact supercapacitor valve control system of the network - forming converter valve. Therefore, during control, the system not only needs to monitor and control the supercapacitor sub - modules, but also needs to monitor and control the supercapacitor clusters.

[0052] Furthermore, the system further includes: a converter;

[0053] Each of the supercapacitor sub - modules is respectively connected to the converter, and the converter is connected to the power grid;

[0054] The supercapacitor sub - module is used to store the energy of the converter in each of the supercapacitor clusters respectively when the converter provides energy; when the converter needs energy, it absorbs energy from each of the supercapacitor clusters and sends it to the converter.

[0055] As described above, such as Figure 4As shown in the figure, the converter can be composed of multiple sub-modules, and each sub-module is an H-bridge device composed of 4 IGBTs (Insulated Gate Bipolar Transistors). T1 - T4 are transistors, D1 - D4 are diodes, SM is the sub-module, and C is the capacitor.

[0056] Further, the supercapacitor cluster is used to send its own status information to each of the monitoring hosts and each valve control host core board respectively;

[0057] The supercapacitor sub-module is also used to send its own status information to each valve control host core board respectively;

[0058] The valve control host core board is further used to convert the status information of each supercapacitor cluster and / or each supercapacitor sub-module into the status data of the corresponding supercapacitor sub-module after receiving the status information of each supercapacitor cluster and / or each supercapacitor sub-module;

[0059] The monitoring host is used to monitor the status information of each supercapacitor cluster received;

[0060] The status data of the supercapacitor sub-module includes: the voltage status data of the supercapacitor sub-module and the temperature status data of the supercapacitor sub-module.

[0061] As described above, the monitoring host receives the information sent by the valve control host and the information sent by all supercapacitor clusters through optical fibers at the same time. The monitoring host respectively receives data and monitors the status from the supercapacitor sub-module and the supercapacitor cluster. It not only needs to receive the status information related to the supercapacitor sub-module from the valve control host, but also needs to monitor the status of the supercapacitor cluster.

[0062] Further, the converter includes: multiple insulated gate bipolar transistors, and the multiple insulated gate bipolar transistors are connected in a bridging manner.

[0063] Further, as Figure 5 shown, the system further includes: multiple supercapacitors, and each supercapacitor sub-module is connected in parallel with one supercapacitor;

[0064] The supercapacitor is used to store the energy of the supercapacitor sub-module connected in parallel with it.

[0065] As described above, both the monitoring host and the valve control host are configured with dual power supplies. When one power supply fails, the other power supply can still ensure the normal operation of the monitoring host and the valve control host. The valve control host can implement the startup strategy of the supercapacitor through software. The chassis of the compact supercapacitor valve control system of the network-forming converter valve can be equipped with a dual power supply configuration of a first power supply board and a second power supply board. The two power supplies use independent power supply wiring. When one of the power supplies loses power due to other factors, the remaining power supply can still ensure the normal operation of this chassis, improving the reliability of the system operation. Multiple supercapacitor sub-modules are connected to the external power grid, and the power grid is used to supply power to the supercapacitor sub-modules, realizing the storage of energy of multiple supercapacitor sub-modules and supercapacitors, which is convenient for the stable operation of the system.

[0066] Further, each of the supercapacitor sub-modules is further configured to absorb the voltage of the power grid when all the supercapacitor sub-modules are blocked; the multiple supercapacitor sub-modules are further configured to perform equalizing charging when the voltages absorbed by each of the supercapacitor sub-modules are stable.

[0067] The core control part of the system architecture is the valve control host, which is designed with multiple redundancies that are exactly the same for multiple valve control hosts. The pole control that participates in the power system control is coordinated with the compact supercapacitor valve control system of the network-forming converter valve of the present invention. The valve control host mainly consists of two types of boards, namely a valve control host core board and an interface board. Among them, the valve control host core board is responsible for data transmission with the pole control through optical fibers, and the communication protocol is the gigabit Ethernet protocol. It mainly receives the modulation wave and other control signals issued by the pole control. After the valve control host core board analyzes the modulation wave data, through algorithms such as equalizing algorithm, NLM (Nearest Level Modulation) algorithm, and circulating current suppression, it calculates the on / off states required for each supercapacitor sub-module and each IGBT at this time, packages these states according to the converter bridge arm and the corresponding supercapacitor sub-module, and distributes them to the corresponding interface board. After receiving the data, the interface board directly sends it to the supercapacitor sub-module through optical fibers for IGBT on / off control, and the supercapacitor cluster performs protection control. The valve control host needs to receive the status information reported by the supercapacitor sub-module and the supercapacitor cluster in a timely manner for control. Therefore, both the supercapacitor sub-module and the supercapacitor cluster send the status quantity data through the interface board, and the interface board integrates the data and then sends it to the valve control host core board for data processing.

[0068] As Figure 6 shown, when the direction of the input DC voltage is fixed, both the input state and the blocked state charge the supercapacitor sub-module and the supercapacitor, and the cut-out state stops charging. That is, when IGBT1 is turned on and IGBT2 is turned off, the supercapacitor sub-module and the supercapacitor can be charged, and when IGBT1 is turned off and IGBT2 is turned on, the charging stops.

[0069] When using the system of the present invention, the input conditions are first designed. The branch where the supercapacitor is located can have a total of N supercapacitor submodules and connected supercapacitors. The target operating voltage of a single supercapacitor is Upu, and the total input DC voltage is Udc.

[0070] Therefore, it can be concluded that if you want to use the total DC voltage Udc to charge a single supercapacitor to the target operating voltage Upu, you need to put n = (Udc / Upu) supercapacitor modules into charging. When designing, please note that N needs to be greater than n.

[0071] According to the above principle, if Figure 7 As shown, the startup process of the supercapacitor is as follows: First, under the condition that the compact supercapacitor valve control system of the grid-type converter valve under the control of the grid-type device provides a stable and improved DC voltage input, the valve control host controls all supercapacitor modules to lock, and the supercapacitor modules and supercapacitors absorb the DC bus voltage of the power grid for charging. When the DC input voltage is stable, the valve control host starts the active charging control strategy, puts N supercapacitor modules into charging, and starts the voltage balancing strategy at the same time, by putting the supercapacitor modules with lower voltage into charging, and cutting out the supercapacitor modules with higher voltage, and continuously rotates until the voltages of all supercapacitor modules are relatively close, and the voltage value is within ±5% of the target working voltage Upu, at this time, it is considered that the supercapacitor modules and supercapacitors are charged and have the conditions for unlocking and use, and the supercapacitor startup process ends. The monitoring host receives the information sent by multiple valve control hosts and all supercapacitor clusters at the same time to monitor the entire system. The information of the supercapacitor cluster is sent to the interface board through the supercapacitor module, and after the interface board is summarized to the valve control host core board, the valve control host core board sends it to multiple monitoring hosts.

[0072] The system of the present invention refers to the design ideas of traditional modular multi-level converter valve control and solves its main shortcomings at the same time, and provides a compact super-capacity valve control system design for a mesh-type converter valve. The compact super-capacity valve control system design for a mesh-type converter valve combines the traditional valve control host, bridge arm control chassis and interface chassis into one chassis, and the boards of the valve control host core board and the interface board no longer communicate through optical fiber, but through the differential signal of the backplane, thereby reducing the design in hardware. In terms of software, the main control and protection functions such as circulating current suppression, phase balance, NLM algorithm, bridge arm protection, etc. are implemented by the valve control host core board, and the interface board is responsible for realizing the control and status upload of the super-capacity sub-module and super-capacity cluster.

[0073] The core function of the valve control host to control the supercapacitor is to implement the startup strategy of the supercapacitor, that is, to make the voltage of the supercapacitor sub-module and the supercapacitor reach the target value. The prerequisite for the supercapacitor to start running is that a stable DC voltage has been connected to both the positive and negative terminals of the supercapacitor. In the embodiment of the present invention, the MMC valve has converted the AC power supply into a stable DC power, and then delivered it to the supercapacitor valve.

[0074] After the supercapacitor obtains a stable DC power, when the valve control host receives a startup signal, it starts to control the supercapacitor to charge. During charging, the valve control host switches between two states of input and cut-out of the supercapacitor sub-module, so that each supercapacitor sub-module and the connected supercapacitor are charged and discharged, so that the supercapacitor sub-module and the supercapacitor reach the target voltage.

[0075] Those skilled in the art should know that: the complexity of the four-layer design of the prior art will greatly increase the probability of problems in the R & D stage and on-site commissioning stage, and reduce the reliability of the normal operation of the equipment. By referring to the traditional modular multilevel converter valve control design, the multi-layer design is streamlined, greatly reducing the complexity of the valve control system, saving the hardware cost and on-site space cost, and improving the economy and reliability of the valve control design. At the same time, due to the reduction of the number of layers of the architecture, the overall link delay of the valve control is greatly reduced. Compared with the traditional architecture, the internal link delay of the valve control is reduced by about 60-70%. The overall control cycle is greatly reduced, and the control effect of the valve control system is improved. And in the design, the particularity of the supercapacitor sub-module is taken into account, and it is designed to send the supercapacitor cluster information to the valve control host through optical fiber for control and protection. Ensure the safe and stable operation of the supercapacitor cluster. The startup strategy of the supercapacitor is designed so that the supercapacitor can be safely and stably put into operation. In terms of chassis power supply, dual power supply configuration is considered, and the two power supplies use independent power supply wiring. When other factors cause one of the power supplies to lose power supply, the remaining power supply can still ensure the normal operation of this chassis, improving the reliability of the system operation. At the monitoring level, the status of the supercapacitor cluster is monitored and displayed separately, which is convenient for equipment operation and maintenance personnel to master the status of the supercapacitor cluster.

[0076] Embodiment 2:

[0077] As Figure 8 shown, the present invention also provides a compact supercapacitor valve control method for a network-forming converter valve, which is applied to the compact supercapacitor valve control system of the network-forming converter valve. The method may include the following steps:

[0078] Step 1: Use the valve control host core board in the compact ultra-capacitance valve control system of the network-forming type converter valve to process the status data of each ultra-capacitance sub-module in the compact ultra-capacitance valve control system of the network-forming type converter valve, and obtain the processing results of each ultra-capacitance sub-module; generate control signals for each ultra-capacitance sub-module according to the processing results of each ultra-capacitance sub-module; distribute the control signals of each ultra-capacitance sub-module to the interface board in the corresponding compact ultra-capacitance valve control system of the network-forming type converter valve.

[0079] Step 2: Use the interface board to control the ultra-capacitance sub-module corresponding to the received control signal according to the received control signal.

[0080] Embodiment 3:

[0081] As Figure 9 shown, the present invention also provides an electronic device, which may be a computer device, a single-chip microcomputer device, a smart mobile device, etc. The electronic device in this embodiment may include a processor, a memory, a transceiver component, etc. The memory, the processor, and the transceiver component are connected by a bus; the memory can be used to store an execution program, and the exemplary execution program may include instructions; the processor is used to execute the instructions stored in the memory. The memory can also be used to store data, and the data can be called and / or modified when the instructions are executed.

[0082] The processor may be a Central Processing Unit (CPU), or may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field-Programmable Gate Arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. It is the computing core and control core of the terminal, and is suitable for implementing one or more instructions, specifically suitable for loading and executing one or more instructions in the storage medium to implement the corresponding method flow or corresponding function, so as to implement the steps of a compact ultra-capacitance valve control method for a network-forming type converter valve in the above embodiment.

[0083] Embodiment 4:

[0084] Based on the same inventive concept, the present invention also provides a readable storage medium, specifically an electronic device-readable storage medium (Memory). The electronic device-readable storage medium is a memory device in the electronic device and is used to store programs and data. It can be understood that the storage medium here can include both the built-in storage medium in the electronic device and, of course, the extended storage medium supported by the electronic device. The storage medium provides a storage space, and this storage space stores the operating system of the terminal. And, in this storage space, there are also stored one or more instructions suitable for being loaded and executed by the processor. These instructions can be one or more execution programs (including program codes). It should be noted that the storage medium here can be a high-speed RAM memory or a non-volatile memory, such as at least one disk memory. By the processor loading and executing one or more instructions stored in the storage medium, the steps of the compacted super-capacity valve control method of a network-forming type converter valve in the above embodiments can be realized.

[0085] Those skilled in the art should understand that the embodiments of the present invention application can be provided as a method, a system, or a computer program product. Therefore, the present invention application can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memories, CD-ROMs, optical memories, etc.) containing computer-usable program codes.

[0086] The present invention application is described with reference to the flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the present invention application. It should be understood that each flow and / or block in the flowchart and / or block diagram, as well as the combination of flows and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing devices generate a device for realizing the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0087] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, such that the instructions stored in the computer-readable memory generate a manufactured article including an instruction device, and the instruction device realizes the functions in Figure 1 one flow or multiple flows and / or blocks Figure 1The functions specified in one or more boxes.

[0088] These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process. Thus, the instructions executed on the computer or other programmable device provide for implementing the steps of the functions specified in Figure 1 one or more processes and / or boxes Figure 1 the functions specified in one or more boxes.

[0089] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention application and not to limit the scope of its protection. Although the present invention application has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that after reading the present invention application, various changes, modifications or equivalent replacements can still be made to the specific implementation manners of the application. However, these changes, modifications or equivalent replacements are all within the scope of protection of the pending claims of the application.

Claims

1. A compact super-capacity valve control system for a network-type converter valve, characterized in that: include: Multiple valve-controlled hosts, multiple super-capacitor modules and chassis; multiple valve-controlled hosts are integrated in one chassis and then connected to external networking devices; A plurality of said ultra-capacitor modules are connected to an external power grid; Each of the valve-controlled hosts comprises: a valve-controlled host core board and a plurality of interface boards; the valve-controlled host core board is respectively connected to each of the interface boards, and each of the interface boards is respectively connected to some of the super-capacitor sub-modules in all of the super-capacitor sub-modules; The valve control host core board is used to process the collected state data of each super-capacitor module to obtain the processing result of each super-capacitor module; generate the control signal of each super-capacitor module according to the processing result of each super-capacitor module; distribute the control signal of each super-capacitor module to the corresponding interface board; The interface board is used to control the supercapacitor module corresponding to the control signal according to the received control signal.

2. The system according to claim 1, characterized in that Also includes: A plurality of monitoring hosts, wherein the valve control host core board in each valve control host is respectively connected to one of the monitoring hosts.

3. The system according to claim 1 or 2, characterized in that: Also includes: There are multiple super-capacity clusters, each of the interface boards is respectively connected to part of the super-capacity clusters in all the super-capacity clusters; and each of the super-capacity clusters is respectively connected to all the monitoring hosts.

4. The system according to claim 3, characterized in that Also includes: Inverter; Each of the ultracapacitor modules is respectively connected to the converter, and the converter is connected to the power grid; The supercapacitor submodule is used to store the energy of the converter in each of the supercapacitor clusters when the converter provides energy; When the converter needs energy, energy is absorbed from each of the supercapacitor clusters and sent to the converter.

5. The system according to claim 4, characterized in that The super capacity cluster is used to send its own status information to each of the monitoring hosts and each of the valve control host core boards respectively; The super-capacitor module is also used to send its own status information to each of the valve-controlled host core boards; The valve control host core board is further used for converting the status information of each super-capacity cluster and / or each super-capacity submodule into the status data of the corresponding super-capacity submodule after receiving the status information of each super-capacity cluster and / or each super-capacity submodule; The monitoring host is used to monitor the received status information of each super-capacity cluster; The state data of the supercapacitor module includes: voltage state data of the supercapacitor module and temperature state data of the supercapacitor module.

6. The system according to claim 4, characterized in that The converter comprises: a plurality of insulated gate bipolar transistors, wherein the plurality of insulated gate bipolar transistors are connected in a bridge manner.

7. The system according to claim 5, characterized in that Also includes: A plurality of supercapacitors, each of the supercapacitor submodules is connected in parallel with one supercapacitor; The supercapacitor is used to store energy of the supercapacitor submodule connected in parallel with the supercapacitor.

8. The system according to claim 7, characterized in that Each of the super-capacitor modules is further used to absorb the voltage of the power grid when all the super-capacitor modules are locked; and the plurality of super-capacitor modules are further used to perform voltage-balanced charging after the voltage absorbed by each of the super-capacitor modules is stabilized.

9. A compact over-capacity valve control method for a network-type converter valve, applied to the compact over-capacity valve control system for a network-type converter valve as described in any one of claims 1 to 8, characterized in that: The method comprises: Using the valve control host core board in the compact super-capacity valve control system of the meshed converter valve, the collected state data of each super-capacity sub-module in the compact super-capacity valve control system of the meshed converter valve is processed to obtain the processing result of each super-capacity sub-module; a control signal of each super-capacity sub-module is generated according to the processing result of each super-capacity sub-module; and the control signal of each super-capacity sub-module is distributed to the corresponding interface board in the compact super-capacity valve control system of the meshed converter valve; The interface board is used to control the supercapacitor module corresponding to the control signal according to the received control signal.

10. An electronic device, characterized in that: include: at least one processor and memory; The memory and the processor are connected via a bus; The memory is used to store one or more programs; When the one or more programs are executed by the at least one processor, a compact over-capacity valve control method for a network-type converter valve as described in claim 9 is implemented.

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