Phase-locked-loop rotor position observer for IPMSM considering inverter nonlinearity

被引：0

作者：

Wang, Gaolin ^{[1
]}

Li, Zhuomin ^{[1
]}

Zhan, Hanlin ^{[1
]}

Li, Tielian ^{[1
]}

Li, Gang ^{[1
]}

Xu, Dianguo ^{[1
]}

机构：

[1] Harbin Institute of Technology, Harbin 150001, China

来源：

Diangong Jishu Xuebao/Transactions of China Electrotechnical Society | 2014年 / 29卷 / 03期

关键词：

Locks (fasteners) - Sensorless control - Synchronous motors - Electromotive force - Error compensation - Vector control (Electric machinery) - Electric inverters - Permanent magnets - Sliding mode control;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

An electromotive force (EMF) based rotor position observer using a quadrature phase-locked loop (PLL) is proposed to improve the performance of the sensorless interior permanent magnet synchronous motor (IPMSM) drive. A sliding mode observer based on extended EMF model is designed. On this basis, the position information is obtained using the software quadrature PLL with the estimated EMF. The noise influence can be eliminated, and the observer parameter selection can be simplified. The dynamic response and the robustness to load disturbance is analyzed. The parameter of the position observer is designed adopting the pole assignment method. The negative effect on the position observer due to the stator current distortion is analyzed. A dead-time compensation method based on a saturation function is adopted to reduce the position estimation error. The experimental results demonstrate the feasibility of the sensorless control strategy by an IPMSM vector controlled system.

引用

页码：172 / 179