New Models and Concepts for Power System Reliability Evaluation Including Protection System Failures

作者：Jiang Kai^*; Singh Chanan

来源：IEEE Transactions on Power Systems, 2011, 26(4): 1845-1855.

DOI：10.1109/TPWRS.2011.2156820

• Failure analysis
• Markov processes
• power system modeling
• power system protection
• power system reliability
• power systems
• protection
• reliability
• reliability modeling

This paper develops new models and concepts for incorporating the effect of protection system failures into power system reliability evaluation. The two types of protection failures, i.e., undesired-tripping mode and fail-to-operate mode, and their impact on reliability modeling are discussed. A complete Markov model for current-carrying components is established and its simplified form appropriately describes the overall reliability situation of individual components. Concepts of self-down state and induced-down state are introduced and used to build the composite unit model for quantitatively assessing the influence of protection failures on modeling system states. Finally, a Markov model of power systems with protection failures is proposed for system reliability evaluation. The proposed methodology is then illustrated in detail.

• 出版日期2011-11