An On-line Electric Power Distribution System Simulator

The modern power system is currently undergoing a rapid transformation from centralized generation to decentralized and distributed generation. The distributed generation is connected at the distribution level and may consist of a large number of small generators with stochastic power output. Therefore, planning and operation of the future distribution grid requires new tools to ensure reliable and economical operation. One such tool is an on-line simulator. A system that uses an on-line simulator in the Energy Control Center (ECC) will enhance the operators' situational awareness as well as operational decision making. This paper proposes a framework for an on-line, close to real time simulator, connected to a graphical user interface emulating the Energy Control Center. The framework can be used for both planning and operation of the distribution grid. It can also be extended as an interface to other infrastructure simulators.