Motor fault detection method based on actual state

The invention provides a motor fault detection method based on an actual state. The motor fault detection method comprises the following steps: step (1), collecting working information of a motor; (2) carrying out preliminary fault judgment on the motor; (3) calculating the angular frequency of a motor voltage signal; (4) whether the motor is abnormal or not is judged according to the angular frequency, and if yes, an alarm is given; (5) whether the motor is abnormal or not is judged according to the excitation voltage, and if yes, an alarm is given out; if not, the motor works normally. The invention provides a motor fault detection method based on an actual state, which can timely discover the abnormity of a motor and improve the working reliability of the motor. 本发明提供了一种基于实际状态的电机故障检测方法，包括以下步骤：步骤(1)：采集电机工作信息；步骤(2)：对电机进行初步故障判断；步骤(3)：计算电机电压信号角频率；步骤(4)：根据角频率判断电机是否存在异常，若是，发出报警；若不是，进入步骤(5)：步骤(5)：根据励磁电压判断电机是否存在异常，若是，发出报警；若不是，电机工作正常。本发明提供一种基于实际状态的电机故障检测方法，能够及时发现电机存在的异常，提高其工作的可靠性。