Coal-fired generation in a privatised electricity supply industry

By applying the conventional technique of damping torque analysis, this paper investigates the effect of STATCOM AC and DC voltage regulator on power system oscillation damping and demonstrates the design of STATCOM damping controller by using the phase compensation method. The investigation reveals the negative influence of STATCOM AC and DC voltage regulator on power system oscillation damping which is confirmed by the results of eigenvalue computation and non-linear simulation of an example power system. The effectiveness of STATCOM damping controller designed by the phase compensation method to damp power system oscillations is also illustrated by the example power system.