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所属单位：自动化学院
发表刊物：Zhongguo Dianji Gongcheng Xuebao
摘要：The performance of sensor-less control for permanent magnet synchronous motors (PMSMs) at low speeds mainly depends on the detection precision of rotor position. This paper focused on high-frequency pulsating voltage injection. Firstly, it was pointed out that the estimated position includes a significant 2nd harmonic error considering motor parameter asymmetry and current detection error. This harmonic error was theoretically analyzed. Secondly, a dual filter compensation method with an initial phase angle was proposed to eliminate the error. Yet not enough the initial phase angle is hard to be calculated, and then an improved method is put forward. Lastly, the validity of the proposed compensation method is verified by experiments on the platform for a 1.5kW PMSM drive. © 2018 Chin. Soc. for Elec. Eng.
ISSN号：0258-8013
是否译文：否
发表时间：2018-11-20
合写作者：周波
通讯作者：刘冰