Allocating Ex-post Deviation Cost of Virtual Power Plants in Distribution Networks

Yang Yue; Wang Yue; Wu Wenchuan

DOI:10.35833/MPCE.2022.000355


Allocating Ex-post Deviation Cost of Virtual Power Plants in Distribution Networks



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Author: Yue Yang^1,2,Yue Wang³,Wenchuan Wu²
Author Affiliation: 1.the School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230009, China;2.the State Key Laboratory of Power Systems, Department of Electrical Engineering, Tsinghua University, Beijing 100084, China;3.the State Grid Maanshan Power Supply Company, Maanshan 243000, China
Foundation:	This work was supported in part by the National Science Foundation of China (No. 51725703).

Abstract:	Virtual power plants (VPPs) including distributed generation, energy storage, and elastic load are emerging in distribution networks. Multiple VPPs can participate in electricity market as an aggregated entity and effective cost allocation mechanism among VPPs is a crucial issue. This paper focuses on allocating ex-post cost of VPPs incurred by deviation between actual power and ex-ante schedule in a two-settlement electricity market. We obtain approximate quadratic formulation of ex-post deviation cost considering network loss and develop an analytical cost allocation algorithm based on cooperative game theory. The allocated cost is consistent with cost causation principle and provides VPPs with incentive for aggregation. The proposed allocation method and relevant theoretical result are evaluated and verified by numerical tests.
Keywords:	Renewable energy ; virtual power plant (VPP) ; cost allocation ; distribution network ; electricity market

Received:June 20, 2022 Online Time:2023/05/23



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