WO2023082642A1

WO2023082642A1 - Anti-electromagnetic-interference module control system for modular pulsed power supply

Info

Publication number: WO2023082642A1
Application number: PCT/CN2022/099998
Authority: WO
Inventors: 鄂鹏; 关键; 马勋; 李洪涛; 邓维军; 丁明军; 康传会; 李松杰; 肖金水; 赵娟; 万杰; 谭力; 李立毅
Original assignee: 哈尔滨工业大学
Priority date: 2021-11-12
Filing date: 2022-06-21
Publication date: 2023-05-19
Also published as: CN114094813A; CN114094813B

Abstract

The present invention relates to the technical field of pulsed power. Disclosed is an anti-electromagnetic-interference module control system for a modular pulsed power supply, which system aims to achieve the purposes of ensuring, by means of the anti-electromagnetic-interference module control system, that in a high-voltage large-current complex electromagnetic environment, 129 modules of the modular pulsed power supply can stably and reliably execute an instruction that is sent by the control system, and upload state parameters of all discharging modules and chargers to the control system, so that excitation currents that have various types of output time sequences and are flexibly adjustable can be provided for 18 coils. The system comprises: a remote control system, a data storage system, an optical fiber switch, an uninterruptible power supply, a local controller, a discharging module controller and a charger controller. By means of the present invention, a modular pulsed power supply has a good electromagnetic compatibility in a high-voltage large-current complex electromagnetic environment.

Description

Anti-electromagnetic interference module control system for modular pulse power supply

This application claims the priority of the Chinese patent application submitted to the China Patent Office on November 12, 2021 with the application number 202111342158.3 and the title of the invention "An anti-electromagnetic interference module control system for a modular pulse power supply", the entire content of which Incorporated in this application by reference.

technical field

The invention relates to the technical field of pulse power, in particular to an anti-electromagnetic interference module control system for a modular pulse power supply.

Background technique

"Space plasma environment simulation and research system" is one of the sub-systems of "Space environment ground simulation device", which is one of the key points of the national major scientific and technological infrastructure construction in the long-term planning and construction. It mainly studies the relevant content of plasma in space environment factors , to reveal the distribution and evolution of space plasma and the physical mechanism of its interaction with spacecraft, and improve the understanding and prevention and control capabilities of extreme space environments. The near-Earth space plasma environment simulation system is one of the important experimental research subsystems. This system is used to simulate the earth's magnetosphere environment to study two main aspects: (1) to study the basic physical process of the space plasma environment, specifically related to Three-dimensional magnetic reconnection physics issues related to magnetopause magnetic reconnection, so as to deepen the understanding of space plasma environment, and provide theoretical guidance for spacecraft design and safe operation; (2) Study the characteristics of extreme space plasma environment and related physics The process will deepen the understanding of disastrous space environments such as magnetic storms and high-energy particle storms, and provide guidance for improving the model of high-energy particles in the radiation belt and spacecraft safety evaluation and design.

In the near-Earth space plasma environment simulation system, in order to realize the above research content, a complex set of magnet coils is used in the system to simulate the magnetic field structure and plasma environment of the earth's magnetosphere. The magnet coil set includes 4 magnetic sheaths Pole field coils, 4 magnetic sheath toroidal field coils, 6 magnetic top configuration control coils, 1 dipole field coil, 1 magnetic disturbance type 1 coil, 1 magnetic disturbance type 2 coil, 1 magnetic The mirror field coil has 18 coils in total. Each coil is provided with an excitation current by a set of pulsed power supplies to generate a magnetic field. There are 18 sets of pulsed power supplies in total. By selecting the number of pulsed power supplies put into use and setting the discharge timing of the pulsed power supplies put into use, the magnetic field structure of the earth’s magnetosphere is simulated. And plasma environment, as well as the magnetic field topology of various other physical experimental conditions. The 18 sets of pulse power supplies adopt a modular design. Each set of power supplies is composed of several modules and a local controller. Each module includes a charger and a discharge module. The structure and function of each charger and discharge module are basically the same. There are 129 modules in 18 sets of pulse power supplies. Each module includes a discharge module and a charger. Its rated operating voltage is 20kV. Due to the different load coil parameters of each set of power supplies, the output pulse current is also different. The largest one is The peak output pulse current can reach 570kA.

It can be seen from the above that the number of modules that make up 18 sets of pulse power supplies is large and the working modes are diverse. To complete the integration, orderly and flexible control of all modules requires a control system to complete this function. In the pulse power supply control system adopting the distributed control system structure, each module of the 18 sets of pulse power supply is its basic component, and it is the minimum integrated control object for the control system to realize its functions, including the charging of each module, Discharge, discharge, voltage setting, status parameter monitoring and other functions. Compared with the charger, which only needs to realize the function of receiving the voltage set by the control system and charging instructions, the discharge module is the main body of the output current and has a relatively complicated structure, and its internal controlled and monitored objects are more numerous. At the same time, in order to increase the discharge module The integration level reduces the volume of the discharge module. The discharge module places the module controller integrating functions such as discharge, discharge, and state parameter monitoring inside the discharge module, which is used to receive control commands sent by the control system and upload the discharge module. The state parameter information of . During the discharge process of the pulse power supply, the environment around the power supply is a complex electromagnetic environment with high voltage and high current. The control and data acquisition circuits inside the module controller and local control are sensitive equipment, which will not work normally due to strong electromagnetic interference. There is even a risk of damage, so it is necessary to design a modular control system with anti-electromagnetic interference to ensure that the modular pulse power supply can stably and reliably provide 18 coils with a variety of output timings in a strong electromagnetic interference environment. Flexible and adjustable the excitation current.

Contents of the invention

The purpose of the present invention is to design a modular control system with anti-electromagnetic interference to ensure that the 129 modules of the modular pulse power supply can stably and reliably execute the instructions sent by the control system and upload The state parameters of each discharge module and charger are given to the control system, which can then provide flexible and adjustable excitation currents with various output timings for the 18 coils.

Technical scheme of the present invention is as follows:

An anti-electromagnetic interference module control system for modular pulse power supplies. There are 18 sets of pulse power supplies. Each set of pulse power supplies consists of N discharge modules and M chargers. Both N and M are positive integers. , and use a local controller (3) as the communication center between the remote control system, the discharge module and the charger, and each discharge module and charger contains a charger controller (4) and a discharge module controller (5 ), the anti-electromagnetic interference module control system includes a remote control system (1) and two optical fiber switches (2);

The remote control system (1) is connected to the optical fiber switch (2) through a network cable, and is used to issue control commands and receive the states of each discharge module (5), charger controller (4) and local controller (3);

The two optical fiber switches are connected through optical fibers, one of which is placed in the control room and connected to the remote control system (1) through a network cable, and the other is placed in the power supply room and connected to the local controllers (3) of 18 sets of power supplies through optical fibers. Connection, the local controller of each set of pulse power supply is connected with all discharge module controllers (5) and charger controllers (4) of the set of pulse power supply using optical fiber;

The functions of the 18 sets of local controllers (3) are the same, and they are all used to receive various parameters and instructions sent by the remote control system, send parameters and instructions to the charger controller (4) and discharge module controller (5), receive Collect the voltage, current and temperature data uploaded by the discharge module controller (5), work status information, receive the voltage, current and work status information uploaded by the charger controller (4), collect the corresponding pulse power output current and the corresponding load coil The voltage on the system, as well as the fusion processing of various data and states and storage and sending to the remote control system according to the corresponding requirements (1);

The charger controller (4) is located in the charger, and each charger controller has the same function, including receiving various parameters and instructions sent by the local controller (3), collecting voltage and current data of the corresponding charger, and controlling the charger The charging process and the triggering process of the inverter switch feed back the working data and status information of the charger to the local controller (3);

There are 129 discharge module controllers (5) located in each power supply module. Each discharge module controller (5) has the same function, including receiving various parameters and instructions sent by the local controller, and collecting the data of the corresponding discharge module. Voltage, freewheeling current and temperature data, control the discharge switch, grounding switch and charging switch of the discharge module, control the triggering process of the thyristor and feed back the working data and status information of the discharge module to the local controller (3).

Optionally, the anti-electromagnetic interference module control system also includes a data storage system;

The data storage system is used to store the data of each discharge of the pulse power supply, and provide the function of querying the data of one discharge.

Optionally, the anti-electromagnetic interference module control system also includes two uninterruptible power supplies, one of which is used to supply power to the discharge module controller (5) and 18 sets of local controllers (3), and the other is for remote control The system (1), the data storage system and the two optical fiber switches (2) are powered. By using the uninterruptible power supply to supply power to the control system, the interference of the ground loop can be reduced and the stable and reliable operation of the control system can be ensured when the grid power supply system is abnormal.

Optionally, each local controller (3) includes an FPGA device, a power management circuit, a local memory, a clock management circuit, a photoelectric converter, an Ethernet PHY chip, a gigabit photoelectric converter, an operational amplifier, an integrator and Analog-to-digital converter, FPGA device as the core processing unit of the local controller executes the control instructions issued by the remote control system and uploads and collects data; the power management circuit provides stable power for the module controller; the remote control system can access the local memory to obtain data ; The photoelectric converter is used to convert the electrical signal generated by the FPGA device into an optical signal, and then connect the remote control system and the discharge module and charger of the pulse power supply through the optical fiber; the Ethernet PHY chip is used as a network with the remote control system The physical interface of communication is connected to the remote control system through optical fiber and optical fiber switch through the gigabit photoelectric converter; the operational amplifier is used to amplify the voltage signal obtained by the output current of the pulse power supply measured by the Rogowski coil 2; the integrator is used to restore The current waveform measured by the Rogowski coil 2; the analog-to-digital converter is used to convert the analog signal of the current data restored by the integrator into a digital signal and then send it to the FPGA device for processing; the output current of each set of pulse power supply is placed on the busbar In order to suppress the interference of the ground loop on the measurement signal, the Rogowski coil 2 is connected with the operational amplifier and integrator in the local controller through the choke coil, and then connected with the processing in the local controller through the analog-to-digital converter chip connection.

Optionally, each local controller (3) also includes a local memory;

The local memory is used to temporarily store the measured output current, load voltage data, and the state parameters of each discharge module and charging of itself and its associated pulse power supply.

Optionally, each local controller (3) also includes a clock management circuit;

Described clock management circuit is used for providing clock signal for FPGA device;

The output current of each set of pulse power supply is measured by the Rogowski coil placed in the busbar.

Optionally, each discharge controller (3) also includes a discharge module controller power supply, a signal isolation device, another operational amplifier, two analog-to-digital converters, and a relay controller; the FPGA device is the core of the discharge module controller The processing unit executes the remote control system through the control command issued by the local controller and uploads and collects data; the power supply of the discharge module controller obtains 5V DC power through the isolation transformer, switching power supply, high-frequency inverter, magnetic ring and rectifier, respectively FPGA Power supply with signal isolation equipment; the signal isolation equipment converts the voltage analog signal collected by the voltage divider into a digital signal through a voltage-frequency converter, transmits it to a frequency-voltage converter through an optical fiber, and then converts it into an analog signal. Isolation eliminates electromagnetic interference; the operational amplifier is used to amplify the collected signal; an analog-to-digital converter is used to convert the measured freewheeling current through the signal isolation device to convert the analog signal into a digital signal and send it to the FPGA device; the relay The communication between the controller and the FPGA device uses a photocoupler to suppress the interference of the ground loop, so that the charging switch, the discharge switch and the fan are reliably controlled during the charging and discharging process; the freewheeling current inside the discharging module is measured through the Rogowski coil 1 measurement, the voltage signal output by the Rogowski coil 1 is amplified by the operational amplifier 1, and then restored to the measured current waveform by the integrator, and then the current waveform of the analog signal is converted into a digital signal by the analog-to-digital converter and sent to For the FPGA device, in order to reduce the interference of the ground loop to the integrator, the integrator is also powered by the 5V DC power output from the power supply of the discharge module controller.

Optionally, each discharge module controller (5) also includes two infrared temperature sensors;

The two infrared temperature sensors are both used to collect temperature data of the power module;

Another analog-to-digital converter is used to convert the temperature analog signals measured by the two infrared temperature sensors into digital signals and send them to the PFGA device.

Optionally, each discharge module controller (5) also includes a photoelectric coupler, and the communication between the relay controller and the FPGA device uses a photoelectric coupler to suppress the interference of the ground loop.

Optionally, the freewheeling current is measured using a Rogowski coil.

Compared with the prior art, the present invention has the advantages of:

(1) The system can be used to control 129 modules (including chargers and discharge modules) of 18 sets of pulse power supplies, so that it can provide flexible and adjustable excitation currents with various output timings for 18 coils.

(2) Through the anti-electromagnetic interference design, the system can stably and reliably execute the instructions sent by the control system and upload the status parameters of each module to the control system in a complex electromagnetic environment with high voltage and high current.

(3) The discharge module controller uses isolation transformers, magnetic rings, photoelectric couplers, optical fibers and other means to achieve electrical isolation of signals, which can suppress ground loops and conduction and radiation coupling interference, and realize the freewheeling current and discharge resistance inside the discharge module Stable acquisition and upload of temperature, freewheeling resistor temperature, capacitor voltage, discharge switch state, freewheeling switch state, and reliable control of fans, discharge switches, and charging switches.

(4) For the measurement of the output current of each set of pulse power power supply, in order to effectively suppress the interference of the ground loop, the Rogowski coil is connected to the current measurement equipment in the local controller through the choke coil. This method can effectively solve the problem of the discharge process. Inaccurate output current acquisition, damage to current measurement equipment, etc.

Instructions attached

The present invention will be further described below in conjunction with accompanying drawing:

Fig. 1 is a schematic diagram of the topology structure of a modular pulse power supply module control system and the data acquisition and control functions of the module;

Figure 2 is a schematic diagram of the principle of the local controller;

Fig. 3 is a schematic structural diagram of the discharge module;

Figure 4 is a schematic diagram of the anti-electromagnetic interference design of the data acquisition and control functions of the discharge module controller.

Detailed ways

Below in conjunction with the drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention are described in detail. Obviously, the described embodiments are only part of the embodiments of the present invention, not all embodiments; based on the present invention Embodiments, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 1. This embodiment will be specifically described with reference to FIGS. system), which includes a remote control system 1, a data storage system, an optical fiber switch 2, an uninterruptible power supply, a local controller, a discharge module controller, and a charger controller.

The remote control system 1 is connected to the optical fiber switch 2 through a network cable to issue control commands and receive the status of each discharge module, charger and local controller.

The data storage system is used to store the data of each discharge of the pulse power supply, and provides the function of querying any discharge data.

There are two optical fiber switches, one is placed in the control room and connected to the remote control system 1 and the data storage system through a network cable, and the other is placed in the power supply room to connect to the local controller 3 of 18 sets of power supplies through optical fibers. The two optical fiber switches pass through fiber optic connection. The local controller of each set of pulse power supply is connected with all discharge module controllers 5 and charger controllers 4 of the set of pulse power supply using optical fibers. The use of optical fiber for signal transmission can achieve complete electrical isolation of the signal, thereby eliminating ground loops, conduction and radiation coupling interference.

There are two uninterruptible power supplies, one for the module controller and the local controller, and the other for the remote control system, data storage system and fiber optic switch. By using the uninterruptible power supply to power the control system, the ground loop can be reduced interference and ensure the stable and reliable operation of the control system under abnormal conditions of the grid power supply system.

There are 18 local controllers 3 in total, and their functions include receiving various parameters and instructions sent by the remote control system, sending parameters and instructions to the discharge module controller 5 and charger controller 4, receiving the voltage uploaded by the discharge module controller 5, Current and temperature collection data, as well as working status information, receive the voltage, current and working status information uploaded by the charger controller 4, collect the output current of the corresponding pulse power supply and the voltage on the corresponding load coil, fuse and process various data and status and Stored and sent to the remote control system according to the corresponding requirements.

The discharge module controller 5 is located in each discharge module, a total of 129, and each discharge module controller 5 has the same function, including receiving various parameters and instructions sent by the local controller, and collecting the voltage, current, temperature, etc. of the corresponding discharge module Data, control the discharge switch, grounding switch and charging switch of the discharge module, control the triggering process of the thyristor, and feed back the working data and status information of the discharge module to the local controller.

The charger controller 4 is located in the charger, and each charger controller has the same function, including receiving various parameters and instructions sent by the local controller 3, collecting data such as voltage and current of the corresponding charger, and controlling the charging process of the charger and the triggering process of the inverter switch, and feed back the working data and status information of the charger to the local controller 3 .

In this embodiment, there are 18 sets of the pulse power supply, each set of pulse power supply consists of a number of discharge modules and chargers to form the main body of the power supply, and a local controller 3 is used as a remote control system, discharge modules, and charger The communication center of each discharge module and charger includes a discharge module controller 5 and a charger controller 4.

Embodiment 2. This embodiment is a further description of Embodiment 1. In this embodiment, as shown in FIG. converters, Ethernet PHY chips, gigabit optical-to-optical converters, operational amplifiers, integrators, and analog-to-digital converters. As the core processing unit of the local controller, the FPGA device executes the control instructions issued by the remote control system and uploads and collects data; the power management circuit provides a stable power supply for the module controller; the local memory is used to temporarily store the measured output current and load voltage data As well as the status parameters of each discharge module and charging of itself and its own pulse power supply, the remote control system can access the local memory to obtain data; the clock management circuit is used to provide clock signals for the FPGA device; the photoelectric converter is used to convert the electrical signal generated by the FPGA device It is an optical signal, and then connected to the remote control system and the discharge module and charger of the pulse power supply through the optical fiber; the Ethernet PHY chip is used as a physical interface for network communication with the remote control system, and is passed through a gigabit photoelectric converter. The optical fiber and optical fiber switch are connected to the remote control system; the operational amplifier is used to amplify the voltage signal obtained from the output current of the pulse power supply measured by the Rogowski coil 2; the integrator is used to restore the current waveform measured by the Rogowski coil 2; the analog-to-digital converter is used To convert the current data analog signal restored by the integrator into a digital signal and then send it to the FPGA device for processing. The output current of each set of pulse power supply is measured by the Rogowski coil 2 placed in the busbar. In order to suppress the interference of the ground loop on the measurement signal, the Rogowski coil 2 is connected to the operational amplifier and integrator in the local controller through a choke coil. It then interfaces with the processing chip in the local controller through an analog-to-digital converter.

Specific Embodiment 3. This embodiment is a further description of Embodiment 1. In this embodiment, as shown in FIG. 3 , the controller of the discharge module is located inside the discharge module. The complex electromagnetic environment of current, so it is necessary to do a good job in anti-electromagnetic interference design.

Embodiment 4. This embodiment is a further description of the discharge module controller described in Embodiment 3. In this embodiment, as shown in FIG. 4 , the discharge module controller is designed based on an FPGA device and also includes a discharge module controller Power supply, signal isolation device, operational amplifier, analog-to-digital converter 1, analog-to-digital converter 2, optocoupler, and relay controller. As the core processing unit of the discharge module controller, the FPGA device executes the control instructions issued by the remote control system through the local controller and uploads and collects data; the power supply of the module controller passes through the isolation transformer, switching power supply, high-frequency inverter, magnetic ring and The rectifier obtains a 5V DC power supply for the FPGA and the signal isolation device respectively; the signal isolation device converts the voltage analog signal collected by the voltage divider into a digital signal through a voltage-frequency converter and transmits it to the frequency-voltage converter through an optical fiber. The analog signal is used to eliminate electromagnetic interference through the electrical isolation of the optical fiber; the operational amplifier is used to amplify the collected signal; the analog-to-digital converter 1 is used to convert the freewheeling current measured by the Rogowski coil 1 to the analog value converted by the signal isolation device The signal is converted into a digital signal and sent to the FPGA device; the analog-to-digital converter 2 is used to convert the temperature analog signal measured by the infrared temperature sensor 1 and the infrared temperature sensor 2 into a digital signal and sent to the FPGA device; the relay controller and FPGA Communication between devices uses optocouplers to suppress interference from ground loops, allowing reliable control of charge switches, bleed switches, and fans during charging and discharging. The freewheeling current inside the module is measured by the Rogowski coil 1, the voltage signal output by the Rogowski coil 1 is amplified by the operational amplifier 1, and then restored to the measured current waveform by the integrator, and then converted into an analog signal by the analog-to-digital converter The current waveform is converted into a digital signal and sent to the FPGA device. In order to reduce the interference of the ground loop on the integrator, the integrator is also powered by the 5V DC power output from the power supply of the discharge module controller.

The temperature of the discharge resistor and the freewheeling resistor in the discharge module are measured by infrared temperature sensor 1 and infrared temperature sensor 2 respectively, and both temperature sensors use the SMB line and the analog-to-digital converter 2 of the FPGA device of the discharge module connect.

The trigger control of the discharge switch, the upload of the state parameters of the discharge switch and the freewheeling switch all communicate with the FPGA device of the discharge module controller through optical fiber.

The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and can also be made without departing from the gist of the present invention within the scope of knowledge possessed by those of ordinary skill in the art. Various changes.

Claims

An anti-electromagnetic interference module control system for modular pulse power supplies. There are 18 sets of pulse power supplies. Each set of pulse power supplies consists of N discharge modules and M chargers. Both N and M are positive integers. , and use a local controller (3) as the communication center between the remote control system, the discharge module and the charger, and each discharge module and charger contains a charger controller (4) and a discharge module controller (5 ), it is characterized in that, described anti-electromagnetic interference module control system comprises remote control system (1) and two optical fiber switches (2);

The remote control system (1) is connected to the optical fiber switch (2) through a network cable, and is used to issue control commands and receive the states of each discharge module (5), charger controller (4) and local controller (3);

The two optical fiber switches are connected through optical fibers, one of which is placed in the control room and connected to the remote control system (1) through a network cable, and the other is placed in the power supply room and connected to the local controllers (3) of 18 sets of power supplies through optical fibers. Connection, the local controller of each set of pulse power supply is connected with all discharge module controllers (5) and charger controllers (4) of the set of pulse power supply using optical fiber;

The functions of the 18 sets of local controllers (3) are the same, and they are all used to receive various parameters and instructions sent by the remote control system, send parameters and instructions to the charger controller (4) and discharge module controller (5), receive Collect the voltage, current and temperature data uploaded by the discharge module controller (5), work status information, receive the voltage, current and work status information uploaded by the charger controller (4), collect the corresponding pulse power output current and the corresponding load coil The voltage on the system, as well as the fusion processing of various data and states and storage and sending to the remote control system according to the corresponding requirements (1);

The charger controller (4) is located in the charger, and each charger controller has the same function, including receiving various parameters and instructions sent by the local controller (3), collecting voltage and current data of the corresponding charger, and controlling the charger The charging process and the triggering process of the inverter switch feed back the working data and status information of the charger to the local controller (3);

There are 129 discharge module controllers (5) located in each power supply module. Each discharge module controller (5) has the same function, including receiving various parameters and instructions sent by the local controller, and collecting the data of the corresponding discharge module. Voltage, freewheeling current and temperature data, control the discharge switch, grounding switch and charging switch of the discharge module, control the triggering process of the thyristor and feed back the working data and status information of the discharge module to the local controller (3).
The anti-electromagnetic interference module control system for a modular pulse power supply according to claim 1, wherein the anti-electromagnetic interference module control system also includes a data storage system;

The data storage system is used to store the data of each discharge of the pulse power supply, and provide the function of querying the data of one discharge.
The anti-electromagnetic interference module control system for modular pulse power supply according to claim 2, wherein the anti-electromagnetic interference module control system also includes two uninterruptible power supplies, one of which is used for the discharge module The controller (5) and 18 sets of local controllers (3) supply power, and the other one supplies power to the remote control system (1), data storage system and two optical fiber switches (2), and the control system can be powered by using an uninterruptible power supply Reduce the interference of the ground loop and ensure the stable and reliable operation of the control system under abnormal conditions of the grid power supply system.
The anti-electromagnetic interference module control system for modularized pulse power supply according to claim 3, wherein each local controller (3) includes an FPGA device, a power management circuit, a local memory, a clock management circuit, Photoelectric converters, Ethernet PHY chips, gigabit photoelectric converters, operational amplifiers, integrators and analog-to-digital converters, FPGA devices as the core processing unit of the local controller to execute control instructions issued by the remote control system and upload and collect data ;The power management circuit provides a stable power supply for the module controller; the remote control system can access the local memory to obtain data; the photoelectric converter is used to convert the electrical signal generated by the FPGA device into an optical signal, and then communicate with the remote control system and its pulse power through the optical fiber The discharge module of the power supply is connected to the charger; the Ethernet PHY chip is used as a physical interface for network communication with the remote control system, and is connected to the remote control system through a gigabit photoelectric converter through an optical fiber and an optical fiber switch; the operational amplifier is used for The voltage signal obtained by the output current of the pulse power supply measured by the Rogowski coil 2 is amplified; the integrator is used to restore the current waveform measured by the Rogowski coil 2; the analog-to-digital converter is used to convert the analog signal of the current data restored by the integrator into a digital quantity The signal is then sent to the FPGA device for processing; the output current of each set of pulse power supply is measured by the Rogowski coil 2 placed in the busbar. In order to suppress the interference of the ground loop on the measurement signal, the Rogowski coil 2 communicates with the local controller through a choke The operational amplifier in the circuit, the integrator is connected, and then connected with the processing chip in the local controller through the analog-to-digital converter.
The anti-electromagnetic interference module control system for modular pulse power supply according to claim 4, wherein each local controller (3) also includes a local memory;

The local memory is used to temporarily store the measured output current, load voltage data, and the state parameters of each discharge module and charging of itself and its associated pulse power supply.
The anti-electromagnetic interference module control system for modular pulse power supply according to claim 5, wherein each local controller (3) also includes a clock management circuit;

Described clock management circuit is used for providing clock signal for FPGA device;

The output current of each set of pulse power supply is measured by the Rogowski coil placed in the busbar.
The anti-electromagnetic interference module control system for modular pulse power supply according to claim 6, characterized in that, each discharge controller (3) also includes a discharge module controller power supply, signal isolation equipment, another computing Amplifier, two analog-to-digital converters, and a relay controller; the FPGA device is used as the core processing unit of the discharge module controller to execute the control commands issued by the remote control system through the local controller and upload and collect data; the power supply of the discharge module controller is isolated Transformer, switching power supply, high-frequency inverter, magnetic ring and rectifier obtain 5V DC power supply for FPGA and signal isolation equipment respectively; the signal isolation equipment converts the voltage analog signal collected by the voltage divider into digital by voltage-frequency converter The quantity signal is transmitted to the frequency-voltage converter through the optical fiber and then converted into an analog signal, and the electromagnetic interference is eliminated through the electrical isolation of the optical fiber; the operational amplifier is used to amplify the collected signal; an analog-to-digital converter is used to convert the measured freewheeling current After the current is converted by the signal isolation device, the analog signal is converted into a digital signal and sent to the FPGA device; the communication between the relay controller and the FPGA device uses a photocoupler to suppress the interference of the ground loop, so that it is reliable during charging and discharging. ground control the charge switch, discharge switch and fan; the measurement of the freewheeling current inside the discharge module is measured by the Rogowski coil 1, and the voltage signal output by the Rogowski coil 1 is amplified by the operational amplifier 1, and then restored to the measured current waveform by the integrator , and then the analog-to-digital converter will convert the current waveform of the analog signal into a digital signal and send it to the FPGA device. In order to reduce the interference of the ground loop on the integrator, the integrator is also powered by the 5V DC power output of the discharge module controller. powered by.
The anti-electromagnetic interference module control system for modular pulse power supply according to claim 7, wherein each discharge module controller (5) also includes two infrared temperature sensors;

The two infrared temperature sensors are both used to collect temperature data of the power module;

Another analog-to-digital converter is used to convert the temperature analog signals measured by the two infrared temperature sensors into digital signals and send them to the PFGA device.
The anti-electromagnetic interference module control system for modularized pulse power supply according to claim 8, characterized in that, each discharge module controller (5) also includes a photocoupler, the connection between the relay controller and the FPGA device Communication uses optocouplers to suppress interference from ground loops.
The anti-electromagnetic interference module control system for a modular pulse power supply according to claim 9, wherein the freewheeling current is measured by a Rogowski coil.