电器与能效管理技术Issue(10)：1-6,71,7.DOI:10.16628/j.cnki.2095-8188.2024.10.001
基于无传感器的交流接触器位移控制策略
Displacement Control Strategy of AC Contactor Based on Sensorless Technology
摘要
Abstract
Aiming at the problems of low reliability and poor precision of traditional contactor control model,a dynamic simulation and analysis method of AC contactor suction process based on sensorless technology is proposed.Firstly,according to the magnetic circuit model of AC contactor,the displacement formula of moving iron core of AC contactor is deduced,and the displacement estimator is formed.Based on the displacement estimator,the suction force is predicted,and a closed-loop controller is designed according to the control model.Then,the dynamic closed-loop control simulation model of AC contactor is established,and the closing time of AC contactor in three modes of uncontrolled,PWM time-sharing control and displacement feedback closed-loop control is compared and analyzed,which proves that the displacement closed-loop control scheme has remarkable effectiveness.Finally,the experimental results confirm the accuracy of the model and the practicability of the control strategy,and provide some ideas for the intelligent control of AC contactor.关键词
交流接触器/动态特性仿真/吸力预测/PWM控制/闭环控制Key words
AC contactor/dynamic characteristic simulation/suction prediction/PWM control/closed-loop control分类
信息技术与安全科学引用本文复制引用
张军辉,刘树鑫,刘洋,邢朝健..基于无传感器的交流接触器位移控制策略[J].电器与能效管理技术,2024,(10):1-6,71,7.基金项目
辽宁省科技重大项目资助(2020H/10100012) （2020H/10100012）
辽宁省科技厅"揭榜挂帅"科技攻关专项资助(2022JHI/10800015) （2022JHI/10800015）
