چکیده
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In this paper, selling price determination problem for an electricity retailer has been studied. In the proposed model, the selling price is determined under fixed pricing (FP), time-of-use pricing (TOU) and realtime pricing (RTP). It is shown that the selling price determination based on RTP by the retailer can lead
to the higher expected profit. Furthermore, to exchange power between retailer and power market, the
bidding and offering curves should be prepared to bid and offer to the day-ahead market. Therefore, this
paper proposes an information gap decision theory (IGDT) for obtaining of optimal bidding and offering
strategies of retailer. IGDT assesses the robustness and opportunity decisions of optimal bidding and
offering strategies in the presence of market price uncertainty while retailer considers whether robustness decision (risk-averse) or opportunity decision (risk-taking). It is shown that risk-aversion and
risk-taker influence the expected profit and optimal bidding and offering curves. Meanwhile, the
scenario-based stochastic framework is used for uncertainty modeling of market prices, client group
demand and variable climate condition containing temperature, irradiation and wind speed. To validate
the proposed model, three case studies are used and the results are compared.
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