Title |
Impact of Maintenance Outage Rate Modeling on the Minimum Reserve Rate in Long-term Generation Expansion Planning |
Authors |
김형태(Kim, Hyoungtae) ; 이성우(Lee, Sungwoo) ; 김욱(Kim, Wook) |
DOI |
https://doi.org/10.5370/KIEE.2017.66.12.1712 |
Keywords |
Reliability ; Probabilistic simulation ; Maintenance outage ; Reserve rate |
Abstract |
In South Korea, minimum reserve rate, which is to satisfy reliability standard, has been determined by simulation result using WASP. But, it is still controversial whether the level of minimum reserve rate is adequate. Thus, in this study, various analyses of minimum reserve rate are being conducted. WASP uses the probabilistic simulation technique to evaluate whether reliability standard is satisfied. In this process, forced outage rate and maintenance periods of each generator play important roles. Especially, the long-term plan can be varied depending on how maintenance periods deal with. In order to model maintenance periods in the probabilistic simulation technique, WASP uses derating method. However, broad analyses have to be conducted because there are various ways including derating method to model maintenance periods which result in different results. Therefore, in this paper, 3 different maintenance outage rate modeling methods are applied to arbitrarily modeled system based on the basic plan for long-term electricity supply and demand of South Korea. Results show impact of each modeling method on minimum reserve rate. |