Sensorless control of SRM at standstill
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abstract
A method for sensorless control of SRM at standstill is presented in this paper. At standstill, each SRM phase is excited in sequence with a narrow voltage pulse. The most suitable phase to be excited first for starting the SRM can be detected by comparing the amplitudes of the resultant phase currents. Other sensorless control techniques, such as AM method, can be adopted to control the SRM during running condition. Simulation and experimental results are presented to verify the proposed method.
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APEC 2001. Sixteenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.01CH37181)