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Research on DC Electronic Load System Based on PSO-PID Algorithm

Author

Listed:
  • Liwei Jiang

    (School of Microelectronics and Control Engineering, Changzhou University, Changzhou 213164, China)

  • Keren He

    (School of Microelectronics and Control Engineering, Changzhou University, Changzhou 213164, China)

Abstract

At present, the control part of the DC electronic load is mainly based on analog control, that is, the control loop is controlled by an operational amplifier. Therefore, it is easy to cause slow response speed and overshoot in the process of current rise, and the improvement of response speed is of great significance to the test link. Therefore, this paper studies the digital control of DC electronic load. The DC electronic load control system has the characteristics of nonlinearity, and it is difficult to complete the theoretical modeling. Therefore, the MATLAB system identification toolbox is used to obtain the mathematical model. The traditional PID tuning method has a long time and poor effect. This paper adopts a parameter self-tuning PID controller based on particle swarm optimization algorithm. Through MATLAB simulation, the traditional PID control and particle swarm optimization PID control are simulated and compared. The results show that the digital controller has faster response speed and smaller overshoot than the conventional controller, and the system performance is significantly improved.

Suggested Citation

  • Liwei Jiang & Keren He, 2022. "Research on DC Electronic Load System Based on PSO-PID Algorithm," Journal of Progress in Engineering and Physical Science, Pioneer Academic Publishing Limited, vol. 1(1), pages 1-5, November.
    • Handle: RePEc:cvg:jpepsc:v:1:y:2022:i:1:p:1-5
    DOI: 10.56397/JPEPS.2022.11.01
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