Power systems analog simulation enhancement using a new programmable electronic model

A microcomputer-based hybrid model that performs real-time simulation of power system equipment, such as linear or nonlinear resistors and inductors, converter stations, and static VAR compensators, is presented. Designed to be coupled to power system analog simulators, the model can generate voltage or current waveforms, store and process simulation results, and perform closed-loop network simulation. A detailed analysis shows that the system operates within the tolerance limits allowed for power system simulators. A prototype has already been implemented, showing it high flexibility and value for power system planning and operation studies