控制理论(社会学)
解调
转子(电动)
噪音(视频)
电压
极性(国际关系)
滤波器(信号处理)
计算机科学
信号(编程语言)
同步电动机
工程类
电气工程
计算机网络
频道(广播)
遗传学
控制(管理)
人工智能
生物
图像(数学)
计算机视觉
细胞
程序设计语言
标识
DOI:10.1016/j.dt.2023.07.020
摘要
High frequency pulsating voltage injection method is a good candidate for detecting the initial rotor position of permanent magnet synchronous motor. However, traditional methods require a large number of filters, which leads to the deterioration of system stability and dynamic performance. In order to solve these problems, a new signal demodulation method is proposed in this paper. The proposed new method can directly obtain the amplitude of high-frequency current, thus eliminating the use of filters, improving system stability and dynamic performance and saving the work of adjusting filter parameters. In addition, a new magnetic polarity detection method is proposed, which is robust to current measurement noise. Finally, experiments verify the effectiveness of the method.
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