Bi-level Scheduling Strategy for Virtual Power Plants Considering the Risk of New Energy Output Uncertainty

Due to the new energy resources output represented by wind and photovoltaic has uncertainty and fluctuation , thus it is difficult to avoid the deviation between the actual power output of virtual power plant （VPP） and the scheduling plan, which leads to the increase of VPP operation risk and decrease of revenue. In this paper, a bi-level scheduling strategy for VPP considering the risk of new energy output uncertainty is proposed.Firstly, an upper-level model considering the aggregation benefits of resources within VPP is established; secondly, a lower-level multi-objective scheduling model considering VPP benefits and risks is developed by quantifying VPP scheduling risks using conditional value-at-risk for new energy output uncertainty; finally, the effectiveness of the dispatching model is verified by an example, which can provide VPP with a dispatching aid decision considering both benefits and risks.