Relianility Assessment for Electric Power System Considering System and Loadpoints

Composite power system (CPS) reliability evaluation involves the analysis of the combined generation and transmission system in regard to its ability to serve the system load and load points. This paper presents reliability evaluation of (CPS) operating economically the reliability evaluation and economic dispatch as well as conducted using the optimal flow (OF) and probabilistic method. The reliability evaluation includes system evaluation and load pointʹs. the basic types indices are probability of failure, frequency of failure, and those are used in derive many other reliability indices for the system and load points. The investigated reliability indices are used in design flexible system and Avery useful to long-term system capacity expansion planning of electric power systems. Method of solution first the (OPF) analysis then following indices computed based on the result of (OPF) analysis. Appropriate load curtailment is performed if the load demand is unable to be fully satisfied.consequequently; a pertinent load shedding strategy is introduced. Finally the proposed methods are verified by an application system