2020 年 41 巻 6 号 p. 300-306
In general, demand response programs (DRs) can be classified into the price-based DR and the incentive-based one, and we can expect that the latter will be easily accepted by consumers as compared to the former. This is because the incentive-based DR brings benefits both power suppliers and consumers. However, the incentive-based DR has still plenty room for discussion on rebate level setting. This paper presents a design method of the incentive-based DR using a problem framework of social welfare maximization (SWM). In the proposed method, first, the electricity trade between the suppliers and the consumers is represented as the SWM problem. Next, expectable decrement of the consumers’ surplus, which is caused by cooperation to the DR request, is calculated as the minimum rebate level. In contrast, expectable increment of the suppliers’ surplus is calculated as the maximum rebate level. By these calculations, we can set appropriate range for the rebate level in the target DR. Afterwards, the upper limit of adjustable demand is estimated on the basis of decrement of the suppliers’ surplus by the incentive payment. Through numerical calculations and discussions on their results, usefulness of the authors’ proposal is verified.
