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首页> 外文期刊>IEEJ Journal of Industry Applications >Position Sensorless Control System within Over-modulation Range Based on Mathematical Model Robust against Magnetic Saturation of IPMSMs
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Position Sensorless Control System within Over-modulation Range Based on Mathematical Model Robust against Magnetic Saturation of IPMSMs

机译：基于IPMSM的磁饱和鲁棒数学模型的过调制范围内无位置传感器控制系统

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摘要

This paper proposes a position sensorless control system for interior permanent magnet synchronous motors (IPMSMs) within the inverter over-modulation range. In general, using the position sensorless control method in the middle- and high-speed regions requires q -axis inductance, which varies significantly owing to magnetic saturation. Therefore, parameter mismatch may occur, which decreases the motor efficiency and causes control system instability. Furthermore, in the inverter over-modulation range, the performance of the auto current regulator deteriorates significantly because disturbance components, which consist of low-order harmonic current components, are fed back to the controller. As a result, the operation range is not appropriately expanded if no measurements are obtained for these components. First, the robustness against magnetic saturation is increased by constructing a position sensorless control system based on the L_(d) model. Next, a comb-filter-based harmonic current countermeasure method is proposed. The position sensorless control system can expand the operation range in this method. Finally, the effectiveness of the proposed control system is confirmed by several experiments.
机译：本文提出了一种用于逆变器过调制范围内的内部永磁同步电动机（IPMSM）的无位置传感器控制系统。通常，在中高速区域中使用无位置传感器控制方法需要q轴电感，该电感由于磁饱和而显着变化。因此，可能会发生参数不匹配，从而降低电动机效率并导致控制系统不稳定。此外，在逆变器过调制范围内，由于包含低阶谐波电流分量的干扰分量会反馈到控制器，因此自动电流调节器的性能会大大降低。结果，如果未获得这些组件的测量值，则操作范围将无法适当扩展。首先，通过构造基于L_（d）模型的无位置传感器控制系统，提高了抗磁饱和的鲁棒性。接下来，提出了一种基于梳状滤波器的谐波电流对策方法。无位置传感器控制系统可以通过这种方法扩展操作范围。最后，通过几个实验证实了所提出的控制系统的有效性。

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