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首页> 外文会议>IEEE Industry Applications Society Annual Meeting >Sensorless control of surface-mounted permanent-magnet synchronous machines for low-speed operation based on high-frequency square-wave voltage injection
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Sensorless control of surface-mounted permanent-magnet synchronous machines for low-speed operation based on high-frequency square-wave voltage injection

机译：基于高频方波电压注入的表面安装式永磁同步电机低速运行的无传感器控制

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摘要

This paper proposes a high-frequency signal injection-based position estimation scheme for surface-mounted permanent-magnet synchronous machines (SPMSM) operating in the low-speed range. A square-wave voltage vector is injected in the estimated rotating reference frame. The rotor position information is then extracted from the envelopes of the resulting induced high-frequency currents in the stationary reference frame. The proposed position estimation method has almost no dependence on machine asymmetric properties and, therefore, is well suited for SPMSM applications. Simulation results are provided to verify the effectiveness of the proposed method from 1 Hz to 50 Hz electric fundamental frequency under all load conditions. Experimental results on a 2.4-kW SPMSM in both sensorless speed and torque controls are also provided to validate the proposed method. The sensorless speed control can be achieved as low as 0.3 Hz electric fundamental frequency.
机译：本文提出了一种基于高频信号注入的位置估计方案，用于在低速范围内运行的表面安装永磁同步电机（SPMSM）。方波电压矢量被注入到估计的旋转参考系中。然后从静止参考系中所产生的感应高频电流的包络中提取转子位置信息。所提出的位置估计方法几乎不依赖于机器的不对称特性，因此非常适合SPMSM应用。仿真结果提供了验证方法在所有负载条件下从1 Hz到50 Hz电基频的有效性。还提供了在2.4 kW SPMSM的无传感器速度和转矩控制方面的实验结果，以验证所提出的方法。无传感器速度控制可实现低至0.3 Hz的电基频。

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