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单相交流串励电机无传感器转速测量方法
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大小:178 |
2009-07-01
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分析了电机无传感器测速方法,给出了采用STFT 解决这一问题的具体方法,并与采用小波分析的方法进行了实验比较。从实验结果看, STFT 计算时间短,精度高。
关键词:单相串励电机;电机测试;无传感器测速
Abstract : The sensorless speed detection during the motor testing is analysed. The method to solve this problem based on STFT is worked out . The comparison between the two methods using STFT and wavelet is also given out . The comparison shows that the method using STFT is better than that using wavelet both in calculation time and precision.
Keywords :single - phase AC series - excited motor ; motor testing ;sensorless speed detection
关键词:单相串励电机;电机测试;无传感器测速
Abstract : The sensorless speed detection during the motor testing is analysed. The method to solve this problem based on STFT is worked out . The comparison between the two methods using STFT and wavelet is also given out . The comparison shows that the method using STFT is better than that using wavelet both in calculation time and precision.
Keywords :single - phase AC series - excited motor ; motor testing ;sensorless speed detection
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