PMSM的高精度感應電勢狀態觀測器與位置估計

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An electromotive force observer and position estimation with high precision for a permanent magnet synchronous motor

1. Information Engineering School, University of Science and Technology Beijing, Beijing 100083, China;
2. School of Electronic and Information Engineering, Liaoning University of Science and Technology, Anshan 114044, China

摘要: 提出了永磁同步電動機考慮參數變化時精確的感應電勢關系式新模型,建立了微分型和非微分型兩種高精度感應電勢觀測器,證明了感應電勢觀測器的穩定性和收斂性,分析了參數變動對位置估計的影響.針對無位置傳感器矢量控制系統,以內埋式永磁同步電動機為例進行了仿真實驗研究,結果表明設計的感應電勢狀態觀測器具有優良的性能.
- 永磁同步電動機 /
- 感應電勢 /
- 觀測器 /
- 位置估計 /
- 參數變化
Abstract: Taking parameter variation into account, a new model of the induced electromotive force relation of a permanent magnet synchronous motor (PMSM) was presented. Two kinds of induced electromotive force observers with high precision, differential and non-differential, were established. The stability and astringency of the induced electromotive force observers was proved. The effect of parameter variation on their position estimation was analyzed. For a sensorless vector control system, the interior permanent magnet synchronous motor for instance was systematically simulated. The results show that the induced electromotive force observers have excellent performance.
- permanent magnet synchronous motor /
- induced electromotive force /
- observer /
- position estimation /
- parameter variation