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Position Sensorless Control of Interior Permanent Magnet Synchronous Motors Using Unknown Input Observer for High-Speed Drives

机译:使用未知输入观察器的高速驱动器对内部永磁同步电动机进行无位置传感器控制

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摘要

This paper proposes a new position sensorless control for interior permanent-magnet synchronous motor (IPMSM) drives fed by overmodulation mode pulsewidth modulation (PWM) voltage source inverter. It is attractive to expand the speed range of the IPMSM for application to electric vehicles, electrical household appliances, and so on. An overmodulation mode PWM voltage-source inverter makes it possible to solve problems such as efficiency, wide speed range operation, and so on. Most position sensorless controls based on inverter output voltage knowledge, however, cannot directly be utilized because the voltage reference obtained by the controller is not equal to the inverter output voltage. This paper proposes unknown input observer to estimate rotor position without voltage knowledge, and investigates robustness to inductance variation.
机译:本文提出了一种新型的无位置传感器控制,用于由过调制模式脉冲宽度调制(PWM)电压源逆变器供电的内部永磁同步电动机(IPMSM)驱动器。扩展IPMSM的速度范围以应用于电动汽车,家用电器等具有吸引力。过调制模式PWM电压源逆变器可以解决效率,宽速度范围操作等问题。但是,大多数基于逆变器输出电压知识的无位置传感器控制都无法直接使用,因为控制器获得的参考电压不等于逆变器输出电压。本文提出了一个未知的输入观测器来估计没有电压知识的转子位置,并研究了对电感变化的鲁棒性。

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