基于矢量投影和共轭误差消去法的同步磁阻电机无位置传感器控制策略

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关键词：同步磁阻电机;无转子位置传感器控制；自适应投影矢量;位置预测;电流－磁链模型检测DOI：10. 15938/j. emc.2025.09.001中图分类号：TM921.2 文献标志码：A 文章编号：1007-449X（2025）09-0001-13

Abstract：A rotor position prediction method based on magnetic flux observation was proposed to address the issues of large rotor position prediction errors and weak stability in the control system of a sensorless synchronous reluctance motor（SynRM）under dynamic conditions.Within the framework of the SynRM flux model，the generalized position estimation error was expressed by an adaptive projection vector （APV）.Then，the dynamic model between the position estimation error and the flux observer error can be obtained.By analyzing the unstable region of the system，the flux linkage observer is designed to effectively enhance dynamic performance and robustness. Moreover，the proposed conjugate-error-elimination（CEE）method increases the current-magnetic model detection accuracy by eliminating the error caused by inverter nonlinear and resistance temperature rise which improved the position estimation accuracy effectively. Finaly，the performance and stability of the proposed scheme was validated with experiments on a 0.55kW SynRM drive platform.

Keywords：synchronous reluctance motors； sensorless control； adaptive projection vector； position esti-mation；current-magnetic model detection

0引言

同步磁阻电机（synchronousreluctance motor，SynRM）转子无需永磁体及绕组，其结构更为简单、制造成本更低。（剩余15625字）