Some experiences in power system simulation using electromagnetic transient programs

In recent years, considerable progress in computer techniques has allowed power system engineers to perform complex transient analysis through the use of various available large scale power network simulation tools. New trends in control system design fully exploit the better capability of microprocessors to achieve advances in controlling power system networks. For example, the Hydro-Quebec-New England multiterminal DC transmission (HQ-NE) system is one excellent example of the success of such techniques. This paper presents some experiences of the simulation of the HQ-NE power system using EMTP. Some cases of numerical simulations, validated against simulator and field tests, are also included. Finally, a brief discussion on available commercial and noncommercial software is also given.