因現今產業中，以感應馬達取代藉由燃燒燃料做為動力源的傳統引擎，已漸發展為未來趨勢。如能預先安排適當的保養及維修時程，將可大幅減低感應馬達故障之風險。換言之，若能預知感應馬達將發生故障之時間，進而在工期空檔排入保養或更換即將故障之零組件，以避免馬達的突然故障而造成停工。本文應用Simulink 來模擬比較感應馬達於正常運轉與轉子偏心情況之電流訊號的差異，期能作為感應馬達故障偵測之參考。

Induction motors are the workhorses of industry instead of the conventional combustion engine nowadays. To essentially reduce the risk of motor failure, it is important to perform regular maintenance of motors. This means one may avoid very costly expensive downtime from plant by proper time-scheduling of motor replacement or repair if impending failure can be known in advance. It is simulated and compared
the difference of the current signal between normally operated and the eccentric rotor of motors in this paper. Hopefully, the results can be used as a reference for diagnosing motor fault in the future.