전기학회논문지 (The Transactions of The Korean Institute of Electrical Engineers)

  • 제65권8호
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  • Pages.1347-1354
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  • 2016
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  • 1975-8359(pISSN)
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  • 2287-4364(eISSN)
대한전기학회 (The Korean Institute of Electrical Engineers)
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비주거용 소비자 전력요금최소화 목적 BESS 최적운영 및 경제성 평가

Electric Bill Minimization Model and Economic Assessment of Battery Energy Storage Systems Installed in a Non-residential Customer

  • 투고 : 2016.01.04
  • 심사 : 2016.04.01
  • 발행 : 2016.08.01
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초록

This paper presents optimal operational scheduling model and economic assessment of Li-ion battery energy storage systems installed in non-residential customers. The operation schedule of a BESS is determined to minimize electric bill, which is composed of demand and energy charges. Dynamic programming is introduced to solve the nonlinear optimization problem. Based on the optimal operation schedule result, the economics of a BESS are evaluated in the investor and the social perspective respectively. Calculated benefits in the investor or customer perspective are the savings of demand charge, energy charge, and related taxes. The social benefits include fuel cost savings of generating units, construction deferral effects of the generation capacity and T&D infra, and incremental CO2 emission cost impacts, etc. Case studies are applied to an large industrial customer that shows similarly repeated load patterns according to days of the week.

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