Multi-agent Cooperative Interaction Mechanism in a Community Integrated Energy System Using Nash Bargaining Theory

The development of the integrated energy technology has given birth to various community integrated energy systems (CIES) in demand side, such as industrial CIES, and commercial CIES. Notably, this CIES usually involves diversified participants with the openness of the retail market and the influx of various social capitals. Belonging to different stakeholders, the involved agents in CIES usually operate noncooperatively according to their own objectives, to maximize their own benefits. In order to improve further the benefits of those various entities as well as balance their interests, this paper proposes a cooperative interaction mechanism for CIES using Nash bargaining theory. In this bargaining-based cooperative game, the involved agents synergistically operate and negotiate with each other, to realize sharing economy. A distributed optimization approach is applied to find the bargaining solution of the cooperative system, to guarantee the autonomous operation and information privacy of the involved agents. Numerical studies demonstrate the validity of the bargaining-based cooperative interaction mechanism, and also show the improvement of the benefits of the system.