Optimal Coalition Formation between Multi-Microgrids Based on a Cooperative Game Theory Model with the Penetration of Renewable Energy Resources

Authors

• Seyede Mahsa Sarhaddi ¹
• Soodabeh Soleymani ¹
• Seyed Babak Mozafari ¹

• Department of Electrical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran.

Abstract

A three-level scenario-based model for optimal operational planning in order to form a coalition between multiple microgrids is presented. The proposed model is based on the cooperative game theory method. Then the basis of the coalition is to achieve optimal cumulative energy management of all coalition participants. In the proposed model, At first, a bi-level problem is designed to give the optimal exchanges that happen between independent elements (e.g. an energy storage system and a wind power plant) and microgrids. The proposed model uses a cooperative game theory method in which the players try to find a way to achieve the highest profits for the whole coalition. The bi-level model is represented as an MPEC problem. After solving this problem and determining the number of exchanges, each of the local microgrids is operated separately from the perspective of the local operator in the third level of the introduced model. In this way, the amounts of production of electrical and thermal generation units and also the energy status of the system of storing energy are determined.

Keywords

• Multi microgrid
• Coalition
• Game Theory
• Scenario-based