Sensorless Control of Brushless Doubly Fed Induction Generator with Nonlinear Loads for Stand-Alone Power Generation Systems

Figure 10

Experimental results with and without the activation of the PW harmonic-voltage controller at the rotor speed of 600 rpm. (a) PW line voltage (1 p u= 500 V) and CW phase current (1 p u = 60 A). (b) Amplitude of PW harmonic voltage. (c) Reference, feedback, and error of the q-component of the CW current. (d) Harmonic spectrum of PW voltage before activation of the PW harmonic-voltage controller. (e) Harmonic spectrum of PW voltage after activation of the PW harmonic-voltage controller.

(a)

(b)

(c)

(d)

(e)