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

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    一種分式指數趨近律電機SMC系統研究

    來源:電工電氣發布時間:2022-07-19 08:19 瀏覽次數:373

    一種分式指數趨近律電機SMC系統研究

    陳德海,邱福亮,楊程,曹永康
    (江西理工大學 電氣工程與自動化學院,江西 贛州 341000)
     
        摘 要:針對傳統控制器在永磁同步電機調速系統中轉速超調大、抗擾動能力不足等問題,在指數趨近律的基礎上添加了時變函數,提出了一種自適應能力更好的分式指數趨近律滑??刂?(SMC) 系統,并在 MATLAB/Simulink 上進行仿真,將該控制系統與傳統的 PI 控制系統和指數趨近律滑??刂葡到y進行對比分析,結果表明,分式指數趨近律在速度環控制上幾乎未發現超調問題,并且減少了電機的轉矩波動,提高了電機調速系統的抗干擾能力,在保持系統穩定,減少電機能源損耗,提升能源利用率方面有較大成效。
        關鍵詞: 指數趨近律;永磁同步電機;滑??刂葡到y;能源損耗
        中圖分類號:TM351     文獻標識碼:A     文章編號:1007-3175(2022)07-0001-05
     
    Research on a Fractional Exponential Reaching Law SMC
    System for the Electric Motor
     
    CHEN De-hai, QIU Fu-liang, YANG Cheng, CAO Yong-kang
    (School of Electrical Engineering and Automation, Jiangxi University of Science and Technology, Ganzhou 341000, China)
     
        Abstract: The traditional controller has many problems. For instance, the speed overshoot is over the given range. Another problem could be the anti-disturbance capability is not enough. This research added the real variable function based on the exponential approach law. It proposed a fractional exponential reaching law SMC system with better adaptive ability. In addition, simulation experiments have been conducted in MATLAB/Simulink. This paper compared the proposed control system, the traditional PI control system, and the exponential reaching law SMC system. The result shows that the controller with the fractional exponential approach law has better control ability of the speed loop. Moreover,it reduces the torque ripple of the electric motor and promotes the immunity of the speed governing system. The new design could help keep the stability, reduce the energy consumption of the electric motor, and increase energy efficiency.
        Key words: exponential reaching law; permanent magnet synchronous motor; sliding mode control system; energy consumption
     
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