Jaeyoung Yoon’s scientific contributions

This paper presents possible interconnection scenarios and reliability analysis results on power exchange between "ROK- DPRK-RF". Four possible scenarios on power system interconnection between "ROK-DPRK-RF" are proposed to compare pre-feasibility study results in technical, economic and marketable viewpoints. Among these topics, this paper deals with the composite system reliability on interconnected power system. NEAREL(NEAREST-RELIABILITY) program, HLII level composite system reliability program, is developed to analyze the reliability index such as LOLP and EENS for this interconnected system. This paper specifies four possible interconnection scenarios and presents the study results for composite system reliability variations based on these scenarios on NEAREST(North East Asian Region Electrical System Ties) between "ROK-DPRK-RF".

This paper illustrates to determinate how much is the reasonable capacity of tie lines in view point of probabilistic reliability in the North East Asia by using the tie line constrained equivalent assisting generator model (TEAG), which has been already developed by authors. A reliability evaluation program, it is named, NEAREL, based on the TEAG model was made. The reliability evaluation results for an interconnection scenario of the actual power systems of three countries in the North East Asia is introduced. The reasonable capacities of the tie line for three countries interconnection scenario for two target years, 2010 and 2020, are suggested from sensitivity analysis

This paper describes the feasible power exchange model on NEAREST(Northeast Asian Electrical System Ties) . It contains the feasible scenario in technical, economical and marketable viewpoints between Russia, the DPRK and the ROK. Power exchange between Russia, the DPRK and the ROK is a part of NEAREST, which is expected to become a reality within the near future, as it offers great economic benefits, and contributes to peace in this region. This paper specifies basic conclusions for feasibility study on power system interconnection between Russia, the DPRK and the ROK, considering future power industry and electricity balances in each country. It will address the technical, economic and marketable study results

Power exchange between Russia, the DPRK and the ROK is a part of NEAREST (Northeast Asian Electrical System Ties), which is expected to become a reality within the near future, as it offers great economic benefits, and contributes to peace in this region. This paper specifies the prospects for power exchange between Russia, the DPRK and the ROK, considering power industry status and future electricity balances in each country. It addresses the technical, economic and marketable feasibility of realizing power exchange between participating countries. Among these factors, this paper examines technical and economic viewpoints, and estimates the excessive exportable power plants' capacity and energy that either exists, or can be constructed in the future. In addition, this paper specifies the future power demands and supply plans in each country to determine reasonable exchange capacity. Also, future power balances, and power plants' potential that can be constructed for power importing/exporting countries are studied. Combined with these results, this paper investigates the qualitative prospect of power exchange and estimates the possible interconnected capacity and exchange amounts between Russia, the DPRK and the ROK.

This paper provides rough estimates of the environmental benefits, from the standpoint of the Republic of Korea, of power system interconnection among Northeast Asian countries (referred to here as NEAREST for North East Asian Region Electrical System Ties). Emphasis is placed on potential "RFE-DPRK-ROK" (Russian Far East-Democratic Peoples' Republic of Korea-Republic of Korea) inter-ties. Estimates presented here are based on several previous specific case studies, including an earlier KERI interconnection scenario and a new scenario including the effect of the KEDO N/P (Korean Peninsula Development Organization nuclear power plants) that are being built in the DPRK. Generally, it is known that power system interconnections between countries, each one of which has their own seasonal load maximum, power mix, and electricity tariffs, has advantages from environmental as well as economic viewpoints. The environmental benefits of power system interconnection include the reduction, through the mechanism of intercountry electricity trading, of GHG (green house gas) emissions from electricity production in thermal power plants. The monetary value of the avoided emissions can be expressed as the total reduction in GHG emissions multiplied by CO₂ tax per TCE (tone of carbon equivalent). This paper describes analysis results of environmental benefits, including reductions in TCE and in CO₂ taxes, which could be obtained using intercountry electricity trading based on "RFE-DPRK-ROK" power system interconnection scenarios.