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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低速运行的表面安装永磁同步机的无传感器控制

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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基于高频信号喷射的位置估计方案，用于在低速范围内操作的表面安装的永磁同步机（SPMSM）。在估计的旋转参考框架中注入方波电压矢量。然后从静止参考帧中从所得诱导的高频电流的信封中提取转子位置信息。所提出的位置估计方法几乎没有对机器不对称性质的依赖性，因此非常适用于SPMSM应用。提供了仿真结果以在所有负载条件下验证所提出的方法从1 Hz到50 Hz电力基波频率的有效性。还提供了在无传感器速度和扭矩控制中的2.4kW SPMSM上的实验结果以验证所提出的方法。无传感器速度控制可以低至0.3 Hz电力基波频率。

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