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

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一種分式指數(shù)趨近律電機(jī)SMC系統(tǒng)研究

來源:電工電氣發(fā)布時(shí)間:2022-07-19 08:19 瀏覽次數(shù):429

一種分式指數(shù)趨近律電機(jī)SMC系統(tǒng)研究

陳德海,邱福亮,楊程,曹永康
(江西理工大學(xué) 電氣工程與自動(dòng)化學(xué)院,江西 贛州 341000)
 
    摘 要:針對(duì)傳統(tǒng)控制器在永磁同步電機(jī)調(diào)速系統(tǒng)中轉(zhuǎn)速超調(diào)大、抗擾動(dòng)能力不足等問題,在指數(shù)趨近律的基礎(chǔ)上添加了時(shí)變函數(shù),提出了一種自適應(yīng)能力更好的分式指數(shù)趨近律滑??刂?(SMC) 系統(tǒng),并在 MATLAB/Simulink 上進(jìn)行仿真,將該控制系統(tǒng)與傳統(tǒng)的 PI 控制系統(tǒng)和指數(shù)趨近律滑??刂葡到y(tǒng)進(jìn)行對(duì)比分析,結(jié)果表明,分式指數(shù)趨近律在速度環(huán)控制上幾乎未發(fā)現(xiàn)超調(diào)問題,并且減少了電機(jī)的轉(zhuǎn)矩波動(dòng),提高了電機(jī)調(diào)速系統(tǒng)的抗干擾能力,在保持系統(tǒng)穩(wěn)定,減少電機(jī)能源損耗,提升能源利用率方面有較大成效。
    關(guān)鍵詞: 指數(shù)趨近律;永磁同步電機(jī);滑??刂葡到y(tǒng);能源損耗
    中圖分類號(hào):TM351     文獻(xiàn)標(biāo)識(shí)碼:A     文章編號(hào):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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