Current Sensorless Algorithm of PMSM Drive for Current Fault Tolerant

고장허용 운전을 위한 영구자석동기전동기의 전류센서리스 알고리즘

Motor drive has used in many industrial application. In this situation the motor performance reliability has been more and more important. Sensor fault is critical defect to motor performance especially current sensor. Therefore this paper is dealing with SPMSM current sensorless algorithm in Luenberger estimation method with only a phase current information for current sensor fault situation. And the algorithm is verified with experimental results.