Rotor Position Detection Method for Permanent Magnet Synchronous Motors Based on Search Coil Mutual Inductance

IF 1.5 4区 工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC
Xinmin Li, Junjie Peng, Chenfeng Sun, Fengjun Gong, Wei Chen, Yan Yan
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引用次数: 0

Abstract

This paper addresses the problem of traditional search coils being unable to detect the rotor position of permanent magnet synchronous motors (PMSMs) in low-speed regions. A rotor position detection method based on the mutual inductance effect of search coils is proposed. By designing the structure of the search coils, the mutual inductance effect of the armature winding on the search coils and the influence of the coil's back electromotive force on rotor position detection is eliminated. An ultrahigh-frequency sinusoidal voltage signal with a frequency of 100 kHz is injected into the search coils. The rotor position is calculated by extracting the effective value of the mutual inductance voltage, achieving rotor position detection across the full speed range of the motor. An experimental prototype containing search coils was fabricated, and the experimental results verified the correctness of the theoretical analysis and the effectiveness of the proposed method.

Abstract Image

基于搜索线圈互感的永磁同步电机转子位置检测方法
本文解决了传统搜索线圈在低速区域无法检测永磁同步电机转子位置的问题。提出了一种基于搜索线圈互感效应的转子位置检测方法。通过对搜索线圈结构的设计,消除了电枢绕组对搜索线圈的互感效应和线圈反电动势对转子位置检测的影响。将频率为100khz的超高频正弦电压信号注入到搜索线圈中。通过提取互感电压有效值计算转子位置,实现电机全转速范围内转子位置检测。制作了包含搜索线圈的实验样机,实验结果验证了理论分析的正确性和所提方法的有效性。
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来源期刊
Iet Electric Power Applications
Iet Electric Power Applications 工程技术-工程:电子与电气
CiteScore
4.80
自引率
5.90%
发文量
104
审稿时长
3 months
期刊介绍: IET Electric Power Applications publishes papers of a high technical standard with a suitable balance of practice and theory. The scope covers a wide range of applications and apparatus in the power field. In addition to papers focussing on the design and development of electrical equipment, papers relying on analysis are also sought, provided that the arguments are conveyed succinctly and the conclusions are clear. The scope of the journal includes the following: The design and analysis of motors and generators of all sizes Rotating electrical machines Linear machines Actuators Power transformers Railway traction machines and drives Variable speed drives Machines and drives for electrically powered vehicles Industrial and non-industrial applications and processes Current Special Issue. Call for papers: Progress in Electric Machines, Power Converters and their Control for Wave Energy Generation - https://digital-library.theiet.org/files/IET_EPA_CFP_PEMPCCWEG.pdf
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