• 한국시뮬레이션학회논문지
• /
• 제13권2호
• /
• pp.35-43
• /
• 2004

The purpose of this study is an economic analysis of power plant utilities by comparing electricity generating cost including environmental costs. Considering the enormous role of electricity in the national economy, it is very important to study the effect of environmental regulation on the electricity sector. Because power utilities need for large investment during construction, operation and maintenance, and also require much construction lead time. Economic analysis is the important process in the electric system expansion planning. This paper compares the costs of electricity generation including environmental costs between a coal-fired power plant and an LNG combined cycle power plants. With the simulation, this study surveys the sensitivity of fuel prices, interest rate and carbon tax. In each case, this sensitivity can help to decide which utility is economically better in environmental regulation circumstance.

• 한국시뮬레이션학회:학술대회논문집
• /
• 한국시뮬레이션학회 2003년도 춘계학술대회논문집
• /
• pp.149-154
• /
• 2003

경제성장과 더불어 발생되는 환경오염물질 배출의 증가로 인해 이를 규제하려는 세계적인 동향이 강화되어 이러한 환경문제를 경제 내적인 문제로 발전하고 있다. 특히 전력부문에 있어서 여러 가지 투자대안들이 환경에 미치는 영향을 고려할 경우, 각 대안들이 전력을 생산하기 위해 필요한 비용은 사회적 비용을 고려치 않는 사적인 비용과 커다란 차이가 생길 수 있다. 이에 본 연구에서는 균등화발전 원가법으로 유연탄과 LNG화력 발전의 경제성을 분석하였는데. 환경 규제상황에서 발전원간 평가를 위해 저감설비 도입비용, 탄소세, 연료비 인상, 할인율 변동에 따른 경제성 비교를 통하여 유연탄 및 LNG발전의 발전원가를 컴퓨터 시뮬레이션에 의한 민감도 분석을 통해 비교하였다.

• 대한전기학회:학술대회논문집
• /
• 대한전기학회 2006년도 제37회 하계학술대회 논문집 A
• /
• pp.196-197
• /
• 2006

Preventive maintenance can avail the generation utilities to reduce cost and gain more profit in a competitive supply-side power market. So, it is necessary to perform reliability analysis on the systems in which reliability is essential. In this paper, RCM (Reliability -Centered Maintenance) analytical method is adopted using real historical failure data in Korean power plants. Therefore, the reliability -based Probability model for predicting the failures of components in the power plant is also established, and application to FMECA(Failure Mode Effects and Critical Analysis) consideration of failure probability, Based on the weighting ranking of generating equipments which status to be probability estimation by FMECA. The FMECA is an engineering analysis and a core activity performed by reliability engineers to review the effects of probable failure modes of generating equipments and assemblies of the power system on system performance. The results of this paper show that application of FMECA with stochastic approach to the preventive maintenance can efficiently avail decreasing the cost on maintenance and hence improve the total benefit.