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所属单位：自动化学院

发表刊物：IEEJ TRANSACTIONS ON ELECTRICAL AND ELECTRONIC ENGINEERING

关键字：improved SRFF SMO phase shift

摘要：In view of the relatively low estimation accuracy in the low-pass filter (LPF)-based sliding mode observer (SMO) method, synchronous reference frame filter (SRFF)-based SMO (without input LPF) method, and SRFF-based SMO (with input LPF) method, an improved SRFF-based SMO position sensorless method of the open-winding permanent magnet generator (OWPMG) system is presented. This improved SRFF consists of a programmable eighth-order low-pass filter (8th-PLPF), a traditional SRFF, and two phase-locked loops (PLL1 and PLL2). Based on the synchronous angular frequency obtained by PLL2, the 8th-PLPF together with the traditional SRFF can not only effectively filter out the harmonics in the output of the SMO but also achieve the fundamental back-EMF without magnitude and phase angle errors. Then, based on the obtained accurate back-EMF, the estimated rotor position angle can be obtained without phase shift. The OWPMG system using the improved method can work well in both steady-state and dynamic conditions, which is verified by experimental results. (c) 2019 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

ISSN号：1931-4973

是否译文：否

发表时间：2019-06-01

合写作者：Hao, Wenjuan

通讯作者：王宇