Abstract:
Virtual power plants (VPPs) play a crucial role as market players in the development of new power system, and the reasonable distribution of revenue is an important aid to promote its orderly construction. In this paper, we propose a revenue allocation strategy for virtual power plants that takes into account the rights and responsibilities of the participants. To maximize the total revenue of the virtual power plants while accounting for the uncertainty of wind power output, an intraday optimal dispatching model for virtual power plants is developed, containing distributed wind power, energy storage devices and adjustable loads. The performance of the virtual power plants is simulated with the involvement of various participants. In addition, to assess the contribution of each participant to the overall revenue of the VPP from the dual time scales of historical performance and the day-to-be-assigned date, three key metrics, namely the historical credibility of the participants, the contribution to deviation adjustment and the contribution to profit increase, are all defined. An improved Shapley value method considering the weighting of the contribution factors is proposed to allocate the overall revenue of the virtual power plant. Through this approach, the distribution of the revenue can achieve a dual impact of both the historical contribution and the day-to-be-assigned date performance, thereby motivating the participants to engage in the collaborative control of the VPP. Example results demonstrate that the proposed revenue allocation strategy clarifies the contribution of each participant to the overall revenue and assessment of the virtual power plant, realizes the principle of "those who contribute shall benefit", and ensures the fairness and reasonableness of the revenue allocation of each participant in the virtual power plant aggregation.