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박영신(Youngshin Park),전동훈(Donghun Jeon),박정제(Jeongje Park),오태곤(Taegon Oh),조경희(Kyeonghee Cho),최재석(Jaeseok Choi) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.7
The utilities have to integrate consumers' interruption cost representing reliability worth of electricity into the process of assessing investment level. In order to do so, the estimated outage cost must be included into quantitative index corresponding to system capital and operation investment cost to establish an optimal expansion plan. This paper is a study on the outage cost assessment by using macro approach for calculating IEAR(Interrupted Energy assessment Rates) and the TRELSS(Transmission Reliability Evaluation for Large-Scale Systems) program was used for EENS(Expected Energy Not Served)
Jeongje Park(박정제),Jaeseok Choi(최재석),Donghun Jeon(전동훈),Yeongsoo Jeon(전영수),Gyeuwon Jeong(정규원),Jaegul Lee(이재걸),Jino Kim(김진오),Hyeonil Son(손현일),Insoo Bae(배인수) 대한전기학회 2009 대한전기학회 학술대회 논문집 Vol.2009 No.11
This paper describes an alternative method for grid expansion planning considering construction cost, probabilistic production cost, congestion cost and outage cost of a grid at a composite power system derived from a simulation model. In this paper, a heuristic scenario method choosing a least cost solution(scenario) among various scenario combined from candidate new lines is used for deciding the best solution. The characteristics and effectiveness of this simulation model are illustrated by the several case studies of a test system.
두 종류의 부하곡선에 관한 공급지장시간기대치(LOLE)의 상호 변환관계성
이연찬(Yeonchan Lee),오웅진(Ungjin Oh),최재석(Jaeseok Choi),차준민(Junmin Cha),최홍석(Hongseok Choi),전동훈(Donghun Jeon) 대한전기학회 2017 전기학회논문지 Vol.66 No.3
This paper develops a conversion function and method transforming from daily peak load curve used LOLED [days/year] to hourly load curve used LOLEH[hours/year]and describes relationship between LOLED [days/year] and LOLEH [hours/year]. The indices can not only be transformed just arithmetically but also have different characteristics physically because of using their different load curves. The conversion function is formulated as variables of capacity and forced outage rate of generator, hourly load daily load factor and daily peak load yearly load factor, etc. Therefore, the conversion function (γ=φ(.)) cannot be simple. In this study, therefore, the function is formulated as linear times of separated two functions. One is an exponential formed conversion function of daily load factor. Another is formulated with an exponential typed conversion function of daily peak load yearly load factor. Futhermore, this paper presents algorithm and flow chart for transforming from LOLED[days/year] to LOLEH[hours/year]. The proposed conversion function is applied to sample system and actual KPS(Korea Power System) in 2015. The exponent coefficients of the conversion functions are assessed using proposed method. Finally, assessment errors using conversion function for case studies of sample system and actual system are evaluated to certify the firstly proposed method.