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      Suzhou Electric Appliance Research Institute
      期刊號: CN32-1800/TM| ISSN1007-3175

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      基于改進指數趨近律和擾動觀測器的PMSM滑??刂?/h3>
      來源:電工電氣發布時間:2024-03-11 10:11 瀏覽次數:16

      基于改進指數趨近律和擾動觀測器的PMSM滑??刂?/strong>

      陳德海1,2,賴正貴1,李志遠1,李明1,陳志文1
      (1 江西理工大學 電氣工程與自動化學院,江西 贛州 341000;
      2 中國科學院贛江創新研究院,江西 贛州 341000)
       
          摘 要:為改善永磁同步電機速度環上傳統滑??刂?SMC)中響應速度較慢、抖振較大等不足,提出了一種基于改進指數趨近律和滑模擾動觀測器(SMDO)的滑??刂品桨?。采用連續函數代替符號函數并設計改進指數趨近律以提高系統響應速度,增加以觀測誤差為變量的滑模擾動觀測器來強化系統抗擾能力,基于觀測擾動與改進指數趨近律相結合的方法設計了改進的滑??刂破?。通過 MATLAB/Simulink 搭建模型,結果表明改進的滑模速度控制配合滑模擾動觀測器可以有效改善系統的魯棒性和動態響應性能。
          關鍵詞: 永磁同步電機;滑??刂?;趨近律;滑模擾動觀測器
          中圖分類號:TM341 ;TM351     文獻標識碼:A     文章編號:1007-3175(2024)02-0008-07
       
      PMSM Sliding Mode Control Based on Improved Exponential
      Reaching Law and Disturbance Observer
       
      CHEN De-hai1, 2, LAI Zheng-gui1, LI Zhi-yuan1, LI Ming1, CHEN Zhi-wen1
      (1 School of Electrical Engineering and Automation, Jiangxi University of Science and Technology, Ganzhou 341000, China;
      2 Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341000, China)
       
          Abstract: In order to improve the shortcomings of the traditional Sliding Mode Control (SMC) on the speed loop of Permanent Magnet Synchronous Motor(PMSM), such as slow response speed and large jitter, a sliding mode control scheme based on improved exponential reaching law and Sliding Mode Disturbance Observer (SMDO) was proposed. The continuous function is used to substitute the symbolic function, the exponential reaching law is designed to improve the response speed of the system, and the sliding mode disturbance observer with the observation error as the variable is added to strengthen the anti-interference ability of the system, based on the method of combining the observed perturbation and the improved exponential reaching law, an improved sliding mode controller was designed. Finally, the model is built by MATLAB/Simulink, and the results show that the improved sliding mode velocity control combined with the sliding mode disturbance observer can effectively improve the robustness and dynamic response performance of the system.
          Key words: permanent magnet synchronous motor; sliding mode control; reaching law; sliding mode disturbance observer
       
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