Title :
A New Position Sensorless Control Method for PM Brushless DC Propulsion Motor with Salient Pole Rotor
Author :
Lin-sen, Zhang ; Shun-yi, Xie ; Ping, Hu ; Xiao-hu, Liu
Author_Institution :
Dept. of Weaponry Eng., Naval Univ. of Eng., Wuhan, China
Abstract :
A new position sensorless control method is proposed in this paper based on analyzing the mathematical model of PMBLDCM propulsion motor with salient pole rotor. The instantaneous voltage of floating phase method is sampled at PWM_ON interval and PWM_OFF interval of per PWM cycle respectively to acquire the zero crossing points (ZCPs) of the back EMF indirectly. This approach, which not requiring low-pass filter, is very simple and easy to apply to DSP, and the simulation results confirm the validity of this new position sensorless control method.
Keywords :
brushless DC motors; permanent magnet motors; poles and zeros; position control; sensorless machine control; PM brushless DC propulsion motor; PWM_OFF interval; PWM_ON interval; floating phase method; mathematical model; position sensorless control; salient pole rotor; zero crossing points; Brushless DC motors; Permanent magnet motors; Propulsion; Rotors; Sensorless control; Brushless DC motor; Propulsion; Pulse-width modulation; Salient pole rotor; position sensorless;
Conference_Titel :
Electrical and Control Engineering (ICECE), 2010 International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-6880-5
DOI :
10.1109/iCECE.2010.776
