IEEE (2005) AC8B Model<br /></p><p><br /></p><p>The AVR in this model consists of PID<br /></p><p>control, with separate constants for the proportional (KPR), integral (KIR), and derivative (KDR) gains. The<br /></p><p>representation of the brushless exciter (TE, KE, SE, KC, KD) is similar to the model Type AC2A. The Type AC8B model can be used to represent static voltage<br /></p><p>regulators applied to brushless excitation systems. Digitally based voltage regulators feeding dc rotating<br /></p><p>main exciters can be represented with the AC Type AC8B model with the parameters KC and KD set to 0.<br /></p><p>For thyristor power stages fed from the generator terminals, the limits VRMAX and VRMIN should be a<br /></p><p>function of terminal voltage: VT x VRMAX and VT x VRMIN. <br /></p>