A Day-Ahead Nash Bargaining Method for Economic Dispatch of the Multi-operator Micro-grid

doi:10.11930/j.issn.1004-9649.201905076

Abstract

Abstract: In the deregulated electricity market environment, the power trading can be carried out among the operators in the micro-grids. In this paper, we take the cost of individual transactions between operators in a micro-grid and power distribution network as the disagreement point of bargaining, and propose a day-ahead economic dispatching Nash bargaining method for multi-operators in micro-grids based on Nash cooperative game theory. This method can minimize the cost of micro-grid systems while each operator obtains Pareto optimal cost. The Nash bargaining model based on this method is a non-convex and non-linear model, which is not easy to solve directly. This paper decomposes the Nash bargaining model into two convex sub-models and uses ADMM algorithm to solve them sequentially in order to protect the privacy of operators. The simulation gives the cost comparison of each operation agent in the micro-grids before and after the bargaining, and further analyses the Nash bargaining strategy among multi-operators in the island mode.

Key words: micro-grid, multi-operator, cooperative game, Nash bargaining solution, alternating direction method of multipliers

CLC Number:

TM73

WU Ming, KOU Lingfeng, ZHANG Jin, HU Cungang. A Day-Ahead Nash Bargaining Method for Economic Dispatch of the Multi-operator Micro-grid[J]. Electric Power, 2019, 52(11): 19-27,117.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.201905076

https://www.electricpower.com.cn/EN/Y2019/V52/I11/19

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