송전계통의 열화 되고 있는 기기에 대한 신뢰도 기반 유지보수 계획수립 = Reliability Centered Approach To Make Maintenance Strategies For Aging Equipment In The Transmission System

다국어 초록 (Multilingual Abstract)

In deregulated power market, Transmission companies not only decrease their operation costs, but also take opportunities to maximize their profit. On the other hand, they should operate to meet customer needs for reliability. In this respect, they need to make the maintenance strategies considering the tradeoff between cost and reliability. This paper proposes the equipment state modeling through modified semi-Markov chain that has deterioration stages by considering characteristics of equipment. Besides, the effects of equipment failure on the system are presented in terms of a cost using the DC-Optimal Power Flow (OPF). The paper includes test the results using Genetic Algorithm (GA) on the IEEE 9-bus system. The results show the optimal maintenance strategy which minimizes operation costs.