Research on Variable Structure High Voltage Power Supply Control Strategy Based on Predictive PI control algorithm

2019 2nd International Conference on Advanced Materials, Intelligent Manufacturing and Automation

Li, Jiaqiang^1^2 ; Huang, Yiyun^1^2 ; Pan, Shengming^1 ; Feng, Hulin^1 ; Wang, Denghui^1 ; Lei, Hong^1^2

Institute of Plasma Physics, Chinese Academy of Sciences, Hefei

230031, China^1

University of Science and Technology of China, Hefei

230026, China^2

关键词: Control strategies;    Dynamic parameters;    Experimental identification;    FPGA architectures;    High voltage power supply;    High-voltage power-supply units;    Variable structure system;    Variable structures;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/569/4/042024/pdf
DOI  :  10.1088/1757-899X/569/4/042024

来源: IOP

【 摘 要 】

The research and verification of a variable structure high voltage power supply unit and its control strategy are introduced. According to the mathematical modeling method, the variable structure system is linearized equivalent analysis and closed-loop system design. The actual parameter verification and theoretical verification of the system are carried out by means of experimental identification, and the research of subsequent control strategies is guided. According to the analysis results and the dynamic parameters of the power supply, a control strategy based on Predictive PI is proposed and simulated. In addition, in order to realize the actual verification of the power supply control algorithm, a power controller based on the ARM and FPGA architecture is designed to be applied to the system. Experiments show that the control strategy can solve the complex variation of the nonlinear and variable structure of the power supply under dynamic conditions, and ensure that the system completes the established parameter indicators.