Applications of damping torque analysis to STATCOM control

By applying the conventional technique of damping torque analysis. this pap er investigates the effect of STATCOM AC and DC voltage regulator on power system oscillation damping and demonstrates the design of STATCOM damping c ontroller by using the phase compensation method. The investigation reveals the negative influence of STATCOM AC and DC voltage regulator on power sys tem oscillation damping which is confirmed by the results of eigenvalue com putation and non-linear simulation of an example power system. The effectiv eness of STATCOM damping controller designed by the phase compensation meth od to damp power system oscillations is also illustrated by the example pow er system. (C) 2000 Elsevier Science Ltd. All rights reserved.