标题：
Analysis and optimization on compound PWM control strategy of high-speed on/off valve
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所属单位：
机电学院
发表刊物：
Beijing Hangkong Hangtian Daxue Xuebao
摘要：
Aimed at slow response and high-power consumption of high-speed on/off valve (HSV) controlled by single PWM signal, a compound PWM control strategy proposed from the point of view of the digital signal generation mechanism, which consists of reference PWM, excitation PWM, high-frequency PWM and reverse PWM. First, mechanism and working principle of compound PWM control strategy are given. Next, the influence rules of duty cycle of excitation PWM, high-frequency PWM and reverse PWM signals on performance of HSV are studied by simulation under different boundary conditions. Finally, the closed-loop controllers of these PWM's duty cycle are designed based on state variable feedback. Simulation results show that the proposed compound PWM controller can reduce power consumption and closing time of HSV effectively. The coil current is reduced by 80% at maximum position of the ball valve, and closing time of HSV is shortened by 62.5% approximately, compared with single PWM control strategy. © 2019, Editorial Board of JBUAA. All right reserved.
ISSN号：
1001-5965
是否译文：
否
发表时间：
2019-06-01
合写作者：
Gao, Qiang,朱玉川,Luo, Zhang,骆长晟,陈晓明
通讯作者：
Gao, Qiang,高强
发表时间：
2019-06-01
学位：212
职称：副教授
所在单位：民航学院