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임태훈(Tae-Hun Lim),정복만(Bok-Mahn Jung),정재훈(Jea-Hoon Jung),최유림(You-Rim Choi),김용하(Yong-Ha Kim) 한국조명·전기설비학회 2019 조명·전기설비학회논문지 Vol.33 No.11
Estimation of interruption costs is indispensable to determine the optimal facility investment scale and optimum reliability level at the time of distribution system planning. For this, in this paper, we calculate interruption costs by microscopic method, which reflects the pattern of power consumption by customers. For continuity with past research results, based on “Assessment of Interruption Costs on the Industry Load through Using the Microscopic Method”[1], we conducted a direct visit survey on five industries that are practically applied in NDIS(New Distribution Information System) of KEPCO: industry, commercial companies, companies and institutions, agricultural fishery products, and houses. We obtained 2,500 valid data and performed Tobit Regression based on this data to calculate domestic interruption costs in and significant data was produced when compared with the results of the interruption costs in 2008 and 2013.
집단에너지설비의 최적운영을 반영한 신재생에너지원의 열적투입한계용량 산정
임태훈(Tae-Hun Lim),이혜선(Hye-Seon Lee),정재훈(Jea-Hoon Jung),최유림(You-Rim Choi),한상화(Sang-Hwa Han),김용하(Yong-Ha Kim) 한국조명·전기설비학회 2020 조명·전기설비학회논문지 Vol.34 No.1
In response to recent energy and environmental issues, countries around the world have announced climate change policies and are working to reduce greenhouse gases. As a result, many investments are being made to expand renewable energy. Considering domestic and foreign policies and changes in the environment, it is considered to be the most popular in the future, and district heating and cooling facility that combines the energy facilities of existing groups and renewable energy sources. Therefore, in this paper, considering the optimal operation of the heat load of the energy equipment of the existing group, when new thermal load is introduced and is in charge of supplying the heat load from the existing district heating and cooling facility, renewable thermal limit capacity algorithm for calculating the heat input limit capacity is presented.
주파수 안정도 측면에서 풍력 및 태양광발전 투입을 위한 ESS 용량 산정에 관한 연구
김용하(Yong-Ha Kim),박종민(Jong-Min Park),이혜선(Hye-Seon Lee),한상화(Sang-Hwa Han),정재훈(Jea-Hoon Jung),최유림(You-Rim Choi),임태훈(Tae-Hun Lim) 한국조명·전기설비학회 2019 조명·전기설비학회논문지 Vol.33 No.2
In the future, wind power and solar power, which are major renewable energy sources in Korea, have intermittent output characteristics. Accordingly, if the proportion of renewable energy sources input to the power system increases, various problems arise in adjusting power supply and demand in real time, and the quality of electric power may also be degraded. Therefore, the capacity of an energy storage device (ESS) was calculated in this paper to accommodate all planned new and renewable energy sources to solve problems that may arise in the power system under the premise of “A Study on the Wind &Solar Power Acceptable Capacity of Korea Electric Power System on Frequency Stability”, “A Study on the Local Characteristics by Wind&Solar Power on Korea Electric Power System”, and “A Study on the Wind &Solar Power Acceptable Capacity of Korea Electric Power System according to System Operation Reserve”.