Collaborative Game Theory Between Microgrid Operators and Distribution System Operator Considering Multi-Faceted Uncertainties

Shuai Wang, Xiaojing Ma (), Yaling Yan, Tusongjiang Kari and Wei Zhang
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Shuai Wang: School of Electrical Engineering, Xinjiang University, Urumqi 830017, China
Xiaojing Ma: School of Electrical Engineering, Xinjiang University, Urumqi 830017, China
Yaling Yan: Xinjiang Xinneng Group Company Limited Urumqi Electric Power Construction and Commissioning Institute, Urumqi 830000, China
Tusongjiang Kari: School of Electrical Engineering, Xinjiang University, Urumqi 830017, China
Wei Zhang: School of Electrical Engineering, Xinjiang University, Urumqi 830017, China

Energies, 2025, vol. 18, issue 7, 1-25

Abstract: In the vigorous development of the power system, to address the economic challenges of multi-microgrid systems, this paper proposes a Nash bargaining model for collaboration between microgrid operators (MGs) and a distribution system operator (DSO) under conditions of multiple uncertainties. Firstly, a model for energy transactions between multiple complementary microgrid systems and a distribution system is established. Secondly, the chance-constrained method and robust optimization method are applied to model the multiple uncertainties in renewable energy generation and electricity trading prices. Moreover, using Nash bargaining theory, a cooperative operation model between MGs and a DSO is established, which is then transformed into two subproblems: cost minimization in cooperation and revenue maximization from power trading. To protect the privacy of each participant, a distributed solution approach using the alternating direction method of multipliers (ADMM) is applied to solve these subproblems. Finally, the simulation results indicate that the benefit values of all entities have improved after cooperative operation through the proposed model. Specifically, the benefit value of MG 1 is CNY 919,974.3, MG 2 is CNY 1,420,363.2, MG 3 is CNY 790,288.3, and the DSO is CNY 26,257.2. These results demonstrate that the proposed model has favorable economic performance.

Keywords: multiple uncertainties; microgrid operator; distribution system operator; Nash bargaining theory; alternating direction method of multipliers (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
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