China motor protection technology is backward, for the early diagnosis of motor failure, a motor fault diagnosis Petri net model is proposed. The model based on the general motor failures and external signs, just through simple matrix operations the purpose of rapid analysis and detection of motor faults can be achieved. Than conventional motor fault detection method has the advantages of easy, fast and precise aspects, and finally proved that the method is indeed feasible.%目前我国电动机保护技术落后,针对电动机故障的早期诊断问题,提出了一种电动机故障诊断Petri网模型,该模型根据电动机一般故障和外在征兆,只需经过简单的矩阵运算,即可达到快速分析检测电动机故障的目的.该方法比传统的电动机故障检测方法,具有简单方便,快速精确等方面的优点,最后通过实验证明该方法是确实可行的.
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