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Position Sensorless Control of Interior Permanent Magnet Synchronous Motors using Unknown Input Observer and High-frequency Signal Injection

机译:使用未知输入观测器和高频信号注入的内部永磁同步电动机的无位置传感器控制

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The position sensorless control method based on unknown input observer was proposed aiming at the Interior Permanent Magnet Synchronous Motor (IPMSM) in this study. Due to PWM inverter output voltage of the IPMSM inconsistent with input reference voltage and in order to eliminate the influence of input voltage to rotor position, this study use sampling current as another state variable of the observer to build the unknown input observer, thereby estimate the rotor position at the high-speed. Simulation results show that the composite control has good dynamic characteristics in the full speed range.
机译:针对室内永磁同步电动机(IPMSM),提出了一种基于未知输入观测器的无位置传感器控制方法。由于IPMSM的PWM逆变器输出电压与输入参考电压不一致,并且为了消除输入电压对转子位置的影响,本研究使用采样电流作为观测器的另一个状态变量来构建未知的输入观测器,从而估算转子位置处于高速状态。仿真结果表明,该复合控制在全速范围内具有良好的动态特性。

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