Online Identification of the Rotor Flux Linkage in Permanent Magnet Synchronous Motors With Position Triangular Signal Injection

被引：0
|
作者：
Jiang Y. [1 ]
Liu S. [1 ]
Wu X. [1 ]
Huang S. [1 ]
Huang K. [1 ]
Xiao S. [2 ]
机构：
[1] College of Electrical & Information Engineering, Hunan University, Changsha, 410082, Hunan
[2] Key Laboratory for Electric Drive Control and Intelligent Equipment of Hunan Province (Hunan University of Technology), Zhuzhou, 412007, Hunan
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2019年 / 39卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Inverter nonlinearities; Online flux linkage identification; Permanent magnet synchronous motors (PMSMs); Position triangular signal injection;
D O I：
10.13334/j.0258-8013.pcsee.180380
中图分类号：
学科分类号：
摘要：
To solve the rank-deficient problem of the permanent magnet synchronous motor (PMSM) mathematical model which caused the coupling between rotor flux and stator resistance, an online flux linkage identification method based on position triangular signal injection was proposed. The symmetrical triangular wave signal was added into the rotor position, and the rank-full equation of flux identification was obtained by subtracting d-axis voltage on the negative injection signals from d-axis voltage on the positive injection signals, and then combining with the extended Kalman filter algorithm, a flux observer was obtained to identify flux linkage. First, the disturbance of dq-axis currents and torque were very small after injecting the signal, so that it was suitable for surface-mounted PMSM (SPMSM) and interior PMSM (IPMSM). In addition, the nonlinearities of inverters were eliminated, which improved the performance of online flux linkage identification. Finally, the proposed approach was experimentally validated on a 1.5kW IPMSM system and a 2.2kW SPMSM system respectively. © 2019 Chin. Soc. for Elec. Eng.
引用
收藏
页码：845 / 856
页数：11
相关论文
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