Probabilistic Reliability Assessment of Power System Operations

Abstract Although considerable efforts have been devoted to reliability evaluation methods for power system planning in past years, very limited research work has been done for the probabilistic reliability assessment of power system operations. There are fundamental differences between reliability assessments for system planning and operations. After introducing the basic concepts, this article presents 25 subjects, proposes an index system, and discusses special issues for system operation reliability assessment. The major challenges in this area include probabilistic simulations of system dynamics, various operation measures and remedial actions in different timescales, and special requirements in input data and computing speed. The probabilistic reliability assessment of power system operations is an important task for power system researchers and engineers today and in the future.

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