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ISO의 경제성 Demand Response 운영 계획
곽형근(Hyung-Geun Kwag),김진오(Jin-O Kim) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.11
수요반응 프로그램에 참여하는 수요 자원을 구분하기 위하여 등록 정보 및 참여 정보를 정의하며 이러한 정보를 이용하여 수요 자원의 가치를 평가한다. 참여량과 참여율에 따른 수요 자원의 가치는 개념적인 가상의 발전기로써 도입되어 시스템 해석을 실시하여 수요 반응의 합리적인 운영 계획을 모색한다.
가격 탄력성에 따른 경제성 수요 반응 프로그램의 최적 인센티브
곽형근(Hyung-Geun Kwag),김준호(Jun-Ho Kim),김진오(Jin-O Kim),신동준(Dong-Jun Shin),박종진(Jong-Jin Park) 대한전기학회 2009 대한전기학회 학술대회 논문집 Vol.2009 No.7
본 논문에서 전력 시스템 운영자의 trigger poin와 수요 반응 프로그램 참여자의 가격 탄력성에 따라 수요 반응 이후의 전기 가격을 예측하여 경제성 수요 반응 프로그램에 어떤 영향을 끼치는 지 살펴보고 운영자가 수요 반응 프로그램 반응 정보를 쉽게 파악할 수 있게 PR을 제안한다.
수요자원의 등록 정보 및 참여 정보를 이용한 수요 반응 모델링
곽형근(Hyung-Geun Kwag),김진오(Jin-O Kim),신동준(Dong-Joon Shin),이창호(Chang-Ho Rhee) 대한전기학회 2011 전기학회논문지 Vol.60 No.6
This paper proposes the registration information, the participation information for classifying demand resources participate in demand response program. Modeling demand resources from them, it evaluates values of demand resources. Specially assuming that ignore the loss in power system, they take a role as generation. This paper proposes how to evaluate demand resources’ values. Case study shows that demand response operators schedule efficiently demand response program by using index of such as the registration information the participation information of demand resource
곽형근(Hyung-Geun Kwag),김진오(Jin-O Kim) 대한전기학회 2011 전기학회논문지 Vol.60 No.5
Customers hardly change to electric prices in old days because electricity is essential commodity, while demand changes with price after deregulation. It's explained by price-based demand response with demand-elasticity matrix. Also all of the customers have had identical demand-price elasticity matrix till now. But in a practical power system, various customers are present with taking a variety of demand-price elasticity. Therefore this paper proposes demand-price sensitivity to represent different demand-price elasticity. Also as proposing demand-reliability sensitivity, it is modeling various customers’ characteristics to reliability. And then this paper calculates total expected interruption cost of customer from the customer interruption cost and the demand-reliability sensitivity. A total expected interruption cost of system is shown as opportunity cost of a generation cost.
소비자의 행동 패턴을 고려한 수요반응의 상태 천이 모델
곽형근(Hyung-Geun Kwag),이나은(Na-Eun Lee),김진오(Jin-O Kim) 대한전기학회 2013 전기학회논문지 Vol.62 No.8
Demand response(DR) is potential generation alternative to improve the reliability indices of system and load points. However, when demand resources scheduled in DR market fail to reduce demand, it can create new problems associated with maintaining a reliable supply. In this paper, a reliability model of demand resource is constructed considering customers" behaviors in the same form as conventional generation units, where availability and unavailability are associated with the simple two-state model. As a result, the generalized reliability model of demand resources is represented by multi-state model.
소규모 에너지 프로슈머를 위한 Pool 거래 기반 전력소매시장에 관한 연구
손은태(Eun-Tae Son),곽형근(Hyung-Geun Kwag),김성열(Sung-Yul Kim),김동민(Dong-Min Kim) 대한전기학회 2018 전기학회논문지 Vol.67 No.2
This paper presents a structure of the retail electricity market based on the local pool with LDERP(Local Distributed Energy Resource Provider) for small energy prosumers. LDERP is an operator for the proposed market, which conducts performance measurement and settlement by the distribution plan determined through contract with participants. The trading process is designed similarly to the negawatt market. In the case study, the many-sided conditions of the proposed market are comparatively analyzed with the existing prosumer programs. The results demonstrate the effectiveness of the proposed framework in determining the purpose of market operating for the benefit of participants according to the various situations.
김영현(Young-Hyun Kim),곽형근(Hyung-Geun Kwag),김진오(Jin-O Kim) 대한전기학회 2011 전기학회논문지 Vol.60 No.6
Currently, the concern about the environment is the issue all over the world, and in particular, carbon emissions of the power plants will not be able to disregard from the respect of generation cost. This paper proposes DR (demand response) as a method of reducing carbon emissions and therefore, carbon emissions cost. There are a number of studies considering DR, and in this paper, the effect of DR is focused on the side of carbon emission reduction effect considering Time-Of-Use (TOU) program, which is one of the most important economic methods in DSM. Demand-price elasticity matrix is used in this paper to model and analyze DR effect. Carbon emissions is calculated by using the carbon emission coefficient provided by IPCC (Intergovernmental Panel on Climate Change), and generator’s input-output characteristic coefficients are also used to estimate carbon emission cost as well as the amount of carbon emissions. Case study is conducted on the RBTS IEEE with six buses. For the TOU program, it is assumed that parameters of time period partition consist of three time periods (peak, flat, off-peak time period).