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stochastic multiperiod decision making framework of an electricity retailer considering aggregated optimal charging and discharging of electric vehicles
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نویسنده
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badri a. ,hoseinpour lonbar k.
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منبع
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journal of operation and automation in power engineering - 2015 - دوره : 3 - شماره : 1 - صفحه:34 -46
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چکیده
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This paper proposes a novel decision making framework for an electricity retailer to procure its electric demand in a bilateral-pool market in presence of charging and discharging of electric vehicles (evs). the operational framework is a two-stage programming model in which at the first stage, the retailer and ev aggregator do their medium-term planning. determination of retailer's optimum selling price and the amount of energy that should be purchased from bilateral contracts are medium-term decisions that are made one month prior to real-time market. at the second stage, market agents deal with their activities in the short-term period. in this stage the retailer may modify its preliminary strategy by means of pool market option, interruptible loads (ils), self-scheduling and evs charging and discharging (v2g). thus, a bi-level programming is introduced in which the upper sub-problem maximizes retailer profit, whereas the lower sub-problem minimizes the aggregated evs charging and discharging costs. final decision making is obtained in this stage that may be considered as a day-ahead market, keeping in mind the medium-term decisions. due to the volatility of pool price and uncertainties associated with the consumers and evs demand, the proposed framework is a mixed integer nonlinear stochastic optimization problem; therefore, monte carlo simulation (mcs) is applied to solve it. furthermore, a market quota curve is utilized to model the uncertainty of the rivals and obtaining retailer's actual market share. finally, a case study is presented in order to show the capability and accuracy of the proposed framework.
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کلیدواژه
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aggregator ,bilateral ,decision making ,electric vehicle ,interruptible load ,retailer ,self-product
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آدرس
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shahid rajaee teacher training university, faculty of electrical engineering, ایران, shahid rajaee teacher training university, faculty of electrical engineering, ایران
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Authors
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