This thesis proposes a sensorless control method of an electrically excited synchronous machine (EESM). Due to the mutual induction of EESM, the field current contains the structural saliency of the machine. The position estimation method was derived from the geometric relationship between the stator voltage vector and the field current. By utilizing the fundamental PWM signal, the PWM-based sensorless control using mutual induction is proposed. Practical issues were analyzed, and the modification methods were suggested and verified with experimental results.
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This thesis proposes a sensorless control method of an electrically excited synchronous machine (EESM). Due to the mutual induction of EESM, the field current contains the structural saliency of the machine. The position estimation method was derived from the geometric relationship between the stator voltage vector and the field current. By utilizing the fundamental PWM signal, the PWM-based sensorless control using mutual induction is proposed. Practical issues were analyzed, and the modificati...
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