Recent Trend of Electromagnetic Transient Programs for Power System Analysis

Abstract

Power system simulations are roughly classified into the two categories, effective-value-based simulations and electromagnetic transient simulations. The former are usually long-term simulations of a large power system considering the electro-mechanical dynamics and include for instance transient stability simulations. On the other hand, the latter are basically short-term simulations of a small portion of a power system, and surge simulations and power-quality simulations are included. However, for simulations which contain power-electronics controllers, electromagnetic transient simulation methods are often used even for long-term simulations.
This paper first reviews various programs for electromagnetic transient simulations, and then the recent trend of related simulation techniques is summarized.