高壓斷路器電機操動機構(gòu)模糊控制研究
李春澔,鐘建英,王奕飛,劉洋,韓東鵬
(沈陽工業(yè)大學 電氣工程學院,遼寧 沈陽 110870)
摘 要:根據(jù)高壓斷路器電機操動機構(gòu)運動過程非線性特點,提出模糊 PI 控制方法,可隨時更改控制參數(shù)來適應斷路器不同運動狀態(tài)。介紹了操動機構(gòu)的動觸頭運動原理和系統(tǒng)控制原理;在 Simulink 環(huán)境下采用模糊 PI 控制方法,建立基于無刷直流電機系統(tǒng)的控制仿真模型,同時對模型進行分析。仿真結(jié)果表明,運用模糊 PI 控制方法,動觸頭速度與給定速度的誤差較小,超調(diào)量較低,速度曲線響應迅速,實現(xiàn)對高壓斷路器動觸頭的準確控制,可運用到電機操動機構(gòu)運動控制系統(tǒng)。
關(guān)鍵詞:高壓斷路器;電機操動機構(gòu);無刷直流電機;模糊 PI 控制
中圖分類號:TM561 文獻標識碼:A 文章編號:1007-3175(2021)12-0007-04
Research on Fuzzy Control of Motor Operating Mechanism of
High-Voltage Circuit Breaker
LI Chun-hao, ZHONG Jian-ying, WANG Yi-fei, LIU Yang, HAN Dong-peng
(School of Electrical Engineering, Shenyang University of Technology, Shenyang 110870, China)
Abstract: This paper proposed a fuzzy PI control method, which can change the control parameters at any time to adapt to the different motion states of the circuit breaker based on the nonlinear characteristics of the moving process of the high-voltage circuit breaker motor operating mechanism.It introduced the moving contact movement of the operating mechanism theory and the system control theory. This paper used the fuzzy PI control method to establish a control simulation model based on the brushless DC motor system under the Simulink condition and analyzed the model.The simulation results show that using the fuzzy PI control method, the error between the moving contact speed and the given speed is small, the overshoot is low, and the speed curve responds quickly. It can achieve accurate control of the moving contact of the high-voltage circuit breaker, which can be applied to the motor operating mechanism motion control system.
Key words: high-voltage circuit breaker; motor operating mechanism; brushless DC motor; fuzzy PI control
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