摘要
传统转子磁链观测器受直流扰动和谐波扰动的影响无法准确估计转子磁链,进而基于转子磁链的永磁同步电动机无位置传感器控制方法无法准确估计转子位置。针对该问题,提出了一种基于三阶广义积分磁链观测器的刮板输送机永磁同步电动机无位置传感器控制策略。通过引入三阶广义积分磁链观测器,能有效抑制高次谐波分量,稳态时可完全消除转子磁链中的直流分量,且对基波的幅值和相位没有任何影响,从而准确估计转子磁链,提高转子位置估计精度。仿真结果验证了该控制策略的正确性和有效性。
Traditional rotor flux observers cannot accurately estimate rotor flux due to influence of DC disturbance and harmonic disturbance,and then sensorless control method of permanent magnet synchronous motor(PMSM) based on rotor flux cannot accurately estimate rotor position.In order to solve the above problem,a sensorless control strategy for PMSM of scraper conveyor based on third-order generalized integral flux observer(TOGIFO) was proposed.By introducing the TOGIFO,high-order harmonic component can be effectively suppressed,and DC component in rotor flux can be completely eliminated in steady state without amplitude attenuation and phase delay of fundamental wave,so as to accurately estimate rotor flux and improve accuracy of rotor position estimation.The simulation results verify correctness and effectiveness of the control strategy.
作者
胡文彬
王玉娟
张传金
HU Wenbin;WANG Yujuan;ZHANG Chuanjin(Department of Intelligent Manufacturing,Tangshan Vocational College of Science and Technology,Tangshan 063000,China;School of Intelligent Manufacturing,Jiangsu Vocational Institute of Architectural Technology,Xuzhou 221116,China)
出处
《工矿自动化》
北大核心
2019年第10期61-67,共7页
Journal Of Mine Automation
基金
江苏省高等学校自然科学研究面上项目(18KJB470009)
作者简介
胡文彬(1981-),女,河北唐山人,讲师,主要研究方向为电气控制,E-mail:tangshanhuwenbin@sina.com。
