| 基于EKF PMSM定子磁链和转速观测直接转矩控制 |
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| 引用本文： | 刘英培,万健如,沈虹,李光叶,袁臣虎.基于EKF PMSM定子磁链和转速观测直接转矩控制[J].电工技术学报,2009,24(12). |
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| 作者姓名： | 刘英培 万健如 沈虹 李光叶 袁臣虎 |
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| 作者单位： | 天津大学电气与自动化工程学院,天津,300072 |
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| 基金项目： | 国家自然科学基金，高等学校博士学科点专项科研基金，质检公益性行业科研专项经费 |
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| 摘 要： | 针对传统直接转矩控制中存在电流、磁链和转矩脉动较大、及速度传感器的使用降低了系统可靠性、增加了系统成本等问题,提出基于扩展卡尔曼滤波器同时进行定子磁链和转速观测,实现了表面式永磁同步电动机无传感器直接转矩控制.该方法保持了直接转矩控制固有的转矩响应快和系统鲁棒性强的优点,降低了磁链和转矩脉动,并对电动机参数变化、负载扰动具有较强的鲁棒性,有效地改善了系统的动、静态运行性能,实验验证了该方法的可行性和有效性.
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| 关 键 词： | 扩展卡尔曼滤波器 直接转矩控制 永磁同步电动机 定子磁链观测 无传感器控制 |
Stator Flux Linkage and Rotor Speed Observation for PMSM DTC Based on EKF |
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| Liu Yingpei,Wan Jianru,Shen Hong,Li Guangye,Yuan Chenhu.Stator Flux Linkage and Rotor Speed Observation for PMSM DTC Based on EKF[J].Transactions of China Electrotechnical Society,2009,24(12). |
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| Authors: | Liu Yingpei Wan Jianru Shen Hong Li Guangye Yuan Chenhu |
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| Affiliation: | Liu Yingpei Wan Jianru Shen Hong Li Guangye Yuan Chenhu (Tianjin University Tianjin 300072 China) |
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| Abstract: | There are big ripples in motor drive on current and flux linkage and torque when using traditional direct torque control(DTC).System with speed sensor has lower reliability and higher system cost.To solve these problems,an extended Kalman filter(EKF) was established to estimate stator flux linkage and motor speed,thus speed sensorless direct torque control for surface permanent magnet synchronous motor(SPMSM) was realized.Rapid torque response and strong robustness of direct torque control method are still ... |
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| Keywords: | Extended Kalman filter (EKF) direct torque control (DTC) permanent magnet synchronous motor (PMSM) stator flux linkage observation speed sensorless control |
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