CN-116643520-B - Digital monitoring device for particle accelerator power supply

CN116643520BCN 116643520 BCN116643520 BCN 116643520BCN-116643520-B

Abstract

The invention relates to a digital monitoring device for a particle accelerator power supply, which comprises a main control core board, a core backboard, an optical fiber transmitting board, an optical fiber receiving board, a high-speed DAC (digital to analog converter) sub-board and a high-speed ADC sub-board, wherein the core control board is provided with a network interface and an optical fiber interface which are in communication connection with a remote control system and is used for transmitting power supply control information of the remote control system to the particle accelerator power supply through the optical fiber transmitting board and generating a preset voltage given signal of the particle accelerator power supply through the high-speed DAC sub-board, the core control board is also used for receiving state information fed back by the particle accelerator power supply through the optical fiber receiving board and feeding back to the remote control system through the network interface, and the core control board is also provided with an FMC interface which is connected with an external timing system and is used for receiving time information data transmitted by the external timing system and carrying out charge and discharge control on the particle accelerator power supply and recording of the state information based on the time information data.

Inventors

HUANG YUZHEN
GAO DAQING
WANG XIAOJUN
LI JIQIANG
SHANGGUAN JINGBIN
ZHANG HUAJIAN
GAO JIE
ZHU FANGFANG
TAN YULIAN
WU FENGJUN

Assignees

中国科学院近代物理研究所

Dates

Publication Date: 20260512
Application Date: 20230526

Claims (8)

1. The digital monitoring device for the particle accelerator power supply is characterized by comprising a main control core board, a core backboard, an optical fiber transmitting board, an optical fiber receiving board, a high-speed DAC (digital to analog converter) sub-board and a high-speed ADC sub-board, wherein the main control core board is connected with the core backboard; The core control board is provided with a network interface and an optical fiber interface which are in communication connection with a remote control system, and is used for transmitting power control information of the remote control system to the particle accelerator power supply through the optical fiber transmitting board, generating a trigger signal of the particle accelerator power supply charging and discharging operation according to the power control information, and generating a preset voltage given signal of the particle accelerator power supply through the high-speed DAC sub-board; The core control board is also provided with an FMC interface connected with an external timing system, so as to receive time information data issued by the external timing system, and carry out charge and discharge control and recording of state information on the particle accelerator power supply based on the time information data; The module of the particle accelerator power supply comprises a high-voltage charging power supply, a filament, a hydrogen voltage power supply and a thyristor trigger, wherein the core control board is communicated with the remote control system based on UDP protocol, the network protocol distinguishes different modules through ADR, and the high-voltage charging power supply, the filament and the hydrogen voltage power supply are distinguished through a device identification code CID 1; the high-speed ADC daughter board collects the output waveform of a particle accelerator power supply based on a 12-bit ADC chip supporting a JESD204B interface and a sampling rate of 2.5 Gsps; The functional module of the main control core board is developed based on a pure hardware description language verilog, and the functional module and a data processing flow thereof comprise: a1, a time processing module receives time information from a white rabbit timing system, takes the time information as standard time and adds time after data acquisition and state data acquisition; a2, the network data receiving and transmitting module receives the command and data from the remote control system through the gigabit network port, analyzes and verifies the command and data through the network data analyzing module, processes the obtained effective command and data as A3, and forms a response message according to the format of the network communication protocol and transmits the response message back to the remote control system; A3, the high-speed acquisition module acquires power supply load output waveforms according to a working flow, firstly completes configuration of front-end voltage attenuation times, sampling clock frequencies and digital controllable gain amplification times of front-end parameters of a high-speed ADC sub-board, then establishes a JESD204B transmission link with the high-speed ADC sub-board, and after the link is established, receives sampling data of the high-speed ADC sub-board by using a JESD204 IP core; A4, after the command and the data issued by the remote control system are analyzed through network data, classifying the target object according to the content of the equipment identification code; If the target is a high-voltage charging power supply, transmitting the command and the data to a high-voltage charging power supply data analysis module for processing, wherein the processing is divided into two types, namely, transmitting a preset voltage given value to a high-precision DAC voltage given module, controlling the DAC voltage given value to convert the digital voltage given value into analog quantity according to the DAC working time sequence, and docking with the high-voltage charging power supply through a BNC interface; And B2, if the target is a filament and a hydrogen power supply, transmitting all commands and data to a filament and hydrogen power supply data analysis module for analysis, transmitting to a filament and hydrogen power supply optical fiber serial communication module for packaging according to a protocol format, and finally transmitting to the filament and the hydrogen power supply for execution through an optical fiber; B3, if the target is to set the charge and discharge parameters, the charge and discharge parameters obtained through analysis are sent to a charge and discharge time sequence control module; If the aim is to set the trigger case code, the network data analysis module sends the trigger case code with the 32bit width obtained by analysis to the case code detection module, the case code detection module receives and detects the trigger case code input by an external optical fiber, and when the trigger case code input by the external is consistent with the trigger case code with the 32bit width issued by the control system, a charging enabling signal is generated, the charging and discharging time sequence control module is triggered to generate a charging trigger signal meeting the requirement, the charging trigger signal is transmitted to a high-voltage charging power supply through the optical fiber, and the high-voltage power supply is controlled to output, so that the charging action is completed; If the target is to set a discharge frequency value, the network data analysis module sends the discharge frequency value with the 32bit width obtained by analysis to the frequency monitoring module, the frequency detection module receives and detects a high-frequency square wave signal input by an external optical fiber, a direct frequency measurement method is used for calculating the frequency of a high-frequency sweep signal, when the detected high-frequency Fang Bopin value is consistent with the discharge frequency value issued by a control system, a discharge enabling signal is generated according to a charge-discharge parameter issued by the control system, the rising edge of the signal is used as a delay reference, six discharge trigger signals with adjustable pulse width, delay and period are output, and the discharge trigger signals are transmitted to a thyristor switch through the optical fiber so that the thyristor switch is opened, and thus the discharge action is completed; If the target is to set the preset output time, the network data analysis module sends the preset output time value with the width of 64 bits obtained by analysis to the timing output module, the timing output module receives the time of the timing system as the current time, and calculates and regularly generates charge and discharge enabling signals according to the preset output time value, and the two signals trigger the charge and discharge timing control module to generate charge and discharge triggering signals meeting the requirements; and B7, if the target is to inquire the running state of the power supply, inquiring the following three states: c1, inquiring about the running state of the high-voltage charging power supply; c2, inquiring about the running state of the filament and the hydrogen voltage power supply; c3, inquiring the waveform data of the output current of the related power supply.
2. The digitized monitoring device for a particle accelerator power supply of claim 1 wherein the network interface is a gigabit network interface for enabling the core control board to communicate with the remote control system via ethernet to complete command issuing and power status information feedback for the particle accelerator power supply.
3. The digitized monitoring device for the particle accelerator power supply of claim 1, wherein the main control core board receives and analyzes the trigger case code issued by the remote control system through the optical fiber interface, detects the frequency of the high-frequency signal input through the optical fiber interface when the received trigger case code is judged to be consistent with the pre-stored working case code of the particle accelerator power supply, and generates the charge-discharge trigger signal when the frequency meeting the requirement is detected.
4. The digitized monitoring device for a particle accelerator power supply of claim 1 wherein the core control board receives time information data from a rabbit timing system via the FMC interface.
5. The digital monitoring device for a particle accelerator power supply of claim 1, wherein the core control board further has a JTAG interface for debugging the particle accelerator power supply.
6. The digitized monitoring apparatus for particle accelerator power supply of claim 1 wherein said high speed DAC sub-board performs a given operation of a preset voltage of the particle accelerator power supply by means of an on-board 16-bit high speed digital to analog conversion device DAC.
7. The digital monitoring device for a particle accelerator power supply of claim 1, wherein the core control board adds a time stamp to the data collected by the high-speed ADC sub-board based on time information data of a timing system.
8. The digital monitoring device for a particle accelerator power supply of claim 7, wherein the remote control system further stores, analyzes and graphically displays the time stamped data.

Description

Digital monitoring device for particle accelerator power supply Technical Field The invention relates to the technical field of fast pulse power supply control, in particular to a digital monitoring device for a particle accelerator power supply. Background The Kicker power supply is one of key devices for realizing rapid extraction of a main ring of a Lanzhou heavy ion accelerator cooling storage ring (HIRFL), and has the main function of providing exciting current for a kick magnet to generate a rapid pulse magnetic field so as to realize rapid extraction of a particle beam group. The Kicker power supply consists of 6 modules, and each module consists of a high-voltage charging power supply, an energy storage system, a thyratron, an auxiliary power supply, a high-voltage coaxial cable and a matching resistor box. In order to achieve synchronous output of quasi-rectangular current pulses by 6 modules, it is required to strictly control the charge and discharge signals of each module. However, the inventors of the present application have found in research that prior art monitoring of Kicker power supplies exposes the following disadvantages: Firstly, the existing monitoring mode cannot remotely control the high-voltage charging power supply and the thyristor filament of each module, and can only manually switch on and off on site, thereby bringing inconvenience to debugging and operation and maintenance. Meanwhile, when a certain module fails, the module cannot be accurately checked in time, so that the working efficiency is low; Secondly, the existing Kicker power supply control device completes monitoring of power supply output waveforms through a built-in TEK oscilloscope, only a schematic diagram of the waveforms can be output, and key indexes such as rising time, flat top width, falling time, synchronism and the like of the waveforms cannot be monitored accurately; thirdly, the timing output function of the power supply, the function of recording the data and state quantity change time, have yet to be further improved. Disclosure of Invention Aiming at the problems, the application aims to provide a digital monitoring device for a particle accelerator power supply, which is used for realizing full digital control of a high-voltage charging power supply, a filament, a hydrogen voltage power supply and a thyratron trigger of each module of the Kicker power supply, realizing high-speed acquisition and dynamic display of a fast pulse output current waveform, realizing synchronous timing output of the power supply by utilizing time information of a timing system, recording accurate time of data acquisition and state change, and further improving the automation, digitization and intelligent management level of the power supply. In order to achieve the above purpose, the present application adopts the following technical scheme: The application provides a digital monitoring device for a particle accelerator power supply, which comprises a main control core board, a core backboard, an optical fiber transmitting board, an optical fiber receiving board, a high-speed DAC (digital to analog converter) sub-board and a high-speed ADC sub-board, wherein the main control core board is connected with the core backboard; The core control board is provided with a network interface and an optical fiber interface which are in communication connection with a remote control system, and is used for transmitting power control information of the remote control system to the particle accelerator power supply through the optical fiber transmitting board, generating a trigger signal of the particle accelerator power supply charging and discharging operation according to the power control information, and generating a preset voltage given signal of the particle accelerator power supply through the high-speed DAC sub-board; The core control board is also provided with an FMC interface connected with an external timing system, so as to receive time information data issued by the external timing system, and charge and discharge control and state information recording are performed on the particle accelerator power supply based on the time information data. In one implementation of the present application, the network interface is a gigabit network interface, which is used for the core control board and the remote control system to perform ethernet communication, so as to complete the command issuing of the particle accelerator power supply and the feedback work of the power supply state information. In one implementation of the application, the core control board communicates with the remote control system based on a UDP protocol. In one implementation of the present application, the master control core board receives and analyzes the trigger case code issued by the remote control system through the optical fiber interface, and detects the frequency of the high-frequency signal input through the optical fiber interface when the recei