| Abstract |
This paper describes a method for simultaneous state variables and parameters estimation of a
brushless DC motor. The extended Kalman filter is applied for motor state variables and parameters
estimation using measured values of the stator line voltages and currents. The experimental results of
the speed, rotor position and stator resistance estimation are presented. The results are obtained using
two variants of the estimation algorithm. The first one deals with only state motor variables, and in the
other one the motor variables and stator resistance are estimated simultaneously. By introducing the
estimation of the stator resistance the speed estimation accuracy is increased, particularly at low
speed. |
