SCHEDULING STRATEGY FOR MULTIPLE VIRTUAL POWER PLANTS CONSIDERING QUANTITATIVE EVALUATION OF SERVICE QUALITY OF SHARED ENERGY STORAGE

Fan Hui; Niu Yuguang; Chen Yue; Bian Shujie

doi:10.19912/j.0254-0096.tynxb.2024-1072

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (10) : 77-87. DOI: 10.19912/j.0254-0096.tynxb.2024-1072

SCHEDULING STRATEGY FOR MULTIPLE VIRTUAL POWER PLANTS CONSIDERING QUANTITATIVE EVALUATION OF SERVICE QUALITY OF SHARED ENERGY STORAGE

Fan Hui, Niu Yuguang, Chen Yue, Bian Shujie

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Abstract

Aiming at energy coupling problem existing in the coordination and interaction among multiple virtual power plants （MVPP）, a quantitative evaluation function of service quality for shared energy storage （SES） is established. Combined with the evaluation function, a bi-level optimization scheduling strategy of energy sharing among MVPP is proposed. In the upper level, taking into account both the target of economic benefits and service quality of SES, the capacity allocation is optimized. In the lower level, the units output within MVPP and transaction power among them are optimized to minimize the operation cost. To address the uncertainty of RE, based on chance constraint, an optimization model is constructed, where the KKT condition and the Big-M method are used to transform bi-level model into an equivalent single-level model. Simulation verifies the rationality of the proposed model and cases analysis are employed to demonstrate the impact of SES service quality and confidence level on energy sharing and energy storage configuration of MVPP. In addition, results show that with the consideration of service quality for SES, the enthusiasm of MVPP to participate in power sharing is enhanced effectively, realizing the rational utilization of resources.

Key words

virtual power plant / shared energy storage / capacity allocation / chance constraint / bi-level optimization / uncertainty

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Fan Hui, Niu Yuguang, Chen Yue, Bian Shujie. SCHEDULING STRATEGY FOR MULTIPLE VIRTUAL POWER PLANTS CONSIDERING QUANTITATIVE EVALUATION OF SERVICE QUALITY OF SHARED ENERGY STORAGE[J]. Acta Energiae Solaris Sinica. 2025, 46(10): 77-87 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1072

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