OPTIMAL POWER FLOW EXPERIENCE IN AN ENERGY MANAGEMENT SYSTEM

Abstract

With central processor costs falling rapidly, more powerful processors are available for an energy management system (EMS) of an electric utility. As a result, the addition of optimal power flow (OPF) to the traditional power system analysis functions – network model update, state estimator, load flow and security (contingency) analysis – is gaining importance for improving the performance of the power system security functions in an EMS. This paper discusses the implementation of OPF in an EMS and the on-line experience of OPF results to assist the dispatcher in determining the operating strategies of the power system.