Simulation of sensorless operation of BLDCmotor based on the zero-cross detection fromthe line voltage

International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering

article

S. Tara Kalyani¹  Syfullah khan¹ 

[1] Dept of EEE, JNTUH College Of Engineering

关键词: BLDC motor;    simulation;    sensorless operation;    zero crossing;   

来源: Research & Reviews

【 摘 要 】

This paper presents the simulation of sensorless operation of permanent magnet brushless direct current (BLDC) motor. The position sensorless BLDC drive simulated, in this paper, is based on detection of zero crossing from the terminal voltages differences. This method relies on a difference of line voltages measured at the terminals of the motor. It is shown, in the paper, that this difference of line voltages provides an amplified version of an appropriate back EMF at its zero crossings. The commutation signals are obtained without the motor neutral voltage. The effectiveness of this method is demonstrated through simulation.

【 授权许可】

Unknown