期刊
IEEE TRANSACTIONS ON POWER ELECTRONICS
卷 33, 期 8, 页码 7083-7093出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPEL.2017.2753289
关键词
High-speed motor (HSM); permanent magnet synchronous motor (PMSM); phase-locked loop (PLL); rotor position detection; sensorless drive
资金
- National Key Research and Development Program of China [2016YFB0500804]
- National Major Project for the Development and Application of Scientific Instrument Equipment of China [2012YQ040235]
- National Natural Science Foundation of China [61421063]
In order to improve the performance of surface permanent magnet synchronousmotor drives, a novel sensorless drive scheme is proposed in this paper, which is based on the virtual thirdharmonic back EMF incorporating a fractional-N phase-locked loop (FN-PLL) and a synchronous frequency-extract filter (SFF). A simple low-pass filter based circuit is used to obtain the commutation points through the virtual third-harmonic back EMF. After that, an FN-PLL is applied to obtain continuous rotor position angles. On this basis, the SFF-based compensation is proposed to compensate the detecting error adaptively. Meanwhile, the field vector control loop for surface PM motor is proposed, which is based on the proposed rotor position detection link and compensation link. An experimental high-speed magnetically suspended blower platform is built. The effectiveness and the feasibility of the proposed method are validated with experimental results.
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