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首页> 外文期刊>IEEE Transactions on Industry Applications >Initial Rotor Position Estimation of an Interior Permanent-Magnet Synchronous Machine Using Carrier-Frequency Injection Methods
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Initial Rotor Position Estimation of an Interior Permanent-Magnet Synchronous Machine Using Carrier-Frequency Injection Methods

机译:使用载频注入方法估算内部永磁同步电机的初始转子位置

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摘要

This paper presents a method using carrier-frequency injection to estimate the initial rotor position and magnetic polarity for an interior permanent-magnet synchronous machine. A nonsaturating inductance model of the machine provides no information about the polarity of the rotor magnet because the position observer based on this model is locally stable at both poles. To distinguish the polarity of the rotor magnet, the magnetic saturation effect can be used. The Taylor series can be used to describe the nonlinear magnetic saturation relationship between the current and the flux linkage in the d-axis rotor reference frame. The second-order term produces the second harmonic component of the carrier frequency, and the sign of its coefficient identifies the polarity of the rotor magnet being tracked. Both simulation and experimental results show good response of the position observer at several rotor electrical positions using either a rotating vector in the stationary reference frame or a oscillating vector in the estimated rotor reference frame.
机译:本文提出了一种使用载频注入来估计内部永磁同步电机的初始转子位置和磁极性的方法。电机的非饱和电感模型没有提供有关转子磁体极性的信息,因为基于该模型的位置观测器在两个极点上都是局部稳定的。为了区分转子磁体的极性,可以使用磁饱和效应。泰勒级数可用于描述d轴转子参考系中电流与磁链之间的非线性磁饱和关系。二次项产生载波频率的二次谐波分量,其系数的符号标识所跟踪的转子磁体的极性。仿真和实验结果均表明,使用静止参考系中的旋转矢量或估计的转子参考系中的振动矢量,位置观测器在几个转子电气位置上都具有良好的响应。

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