Simulation of Static-Var System (SVS) Performance on a Transient Network Analyzer

A real-time hybrid static-var system model designed to aid in efficiently analyzing the performance of static, thyristor-controlled compensation schemes on a transient network analyzer is described. The types of studies required to develop a static-var system specification are outlined. Use of the real-time, hybrid model to evaluate different compensation schemes, including thyristor-controlled reactors and thyristor-switched capacitors, and to optimize control system characteristics based on the response to system disturbances is delineated. Results of transient network analyzer simulations for tra nsmission system application are presented in the form of plots of the controlled bus voltage, the controlled reactor currents, the error voltage calculated by the control system, and the control system output. A parametric anaylsis of the control system response for a particular system disturbance is also illustrated.