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도시철도 시스템 전기요금 절감을 위한 혼합정수계획법 기반 ESS(에너지저장장치) 스케줄링 기법
고락경(Rakkyung Ko),공성배(Seongbae Kong),주성관(Sung-Kwan Joo) 대한전기학회 2015 전기학회논문지 Vol.64 No.7
Increasing peak load is one of the major concerns about operation of urban railroad systems. Since ESSs (Energy Storage Systems) have a great potential for shaving the peak load, there has been a growing interest in the use of ESS for peak load reduction. Also, ESS can be optimally scheduled to minimize the electricity purchasing cost under a given ToU (Time-of-Use) tariff by taking advantage of electricity price difference between peak and off-peak time. This paper presents a Mixed Integer Programming (MIP)-based ESS scheduling method to minimize the electricity purchasing cost under a ToU tariff for an urban railroad system.
공장 에너지관리 시스템(FEMS) 기반 동선 제작용 가스용해로 에너지 절감을 위한 공정 핵심모델 개발
홍종희(Hong Jongheui),고락경(Rakkyung Ko),송원준(Song WonJoon) 대한전자공학회 2023 대한전자공학회 학술대회 Vol.2023 No.6
This paper presents a study on FEMS-based process optimization and energy-saving technology for gas furnace of copper wire manufacturing. Realtime measurements and analyses were conducted on the energy supply, operation, and equipment information of the gas furnace melting process in order to establish a core process model. Based on this model, it is aimed to predict a holding furnace level and optimize the gas supply quantity to the gas burner within the melting process in order to reduce gas usage by tens of burners. The paper aims to research an optimized process technology that considers economic efficiency and ecofriendliness.