Abstract：The working principle of single phase series motor is described, and the corresponding mathematical model is established, also the expression of electromagnetic torque is deduced. The torsional vibration of single phase series motor is detected under various operating conditions, the torsional vibration-load characteristics and torsional vibration-voltage characteristics are obtained. The theoretical analysis is carried out to obtain the corresponding conclusion, according to the torque expression and torque balance equation of single-phase series motor, which provides an technical support for the torsional vibration suppression of single phase series motor.
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2017, Vol. 38 
