Wang Huabin

Initial rotor position estimation of BLDC based on inductance method

The inductance method is presented for initial rotor position estimation of brushless dc motor (BLDC) in the sensorless control. This method is based on the salient effect and magnetic saturation effect of the interior permanent magnet BLDC. The method includes two processes: one estimates the rotor position of magnetic pole; the other determines the direction of the magnetization at the estimated position at the same period. The experiment result is proved that the inductance method is effective.

Sensorless Vector Control System for Electrical Vehicle

In this paper, the sensorless torque robust tracking problem of the induction motor for Electric vehicle (EV) applications is addressed. It analyzes on the basic principles of the sensorless vector control and space vector pulse width modulation (SVPWM), and puts forward the voltage model with compensation flux estimation method. The experimental results show that the Sensorless Vector Control System is very successful for the Electrical Vehicle.