Multi-microgrid double-layer coordination optimization scheduling method based on hybrid game

Abstract

According to the multi-microgrid double-layer coordination optimization scheduling method based on the hybrid game, the utility of an upper-layer aggregator is considered, a cooperative game model ofa lower-layer multi-microgrid is provided, and then the power utilization satisfaction function and utility of the multi-microgrid are considered; wherein the utility function of the lower-layer multi-microgrid comprises the operation cost of the microgrid, the power generation cost of a gas turbine and the charging and discharging cost of a storage battery; a Stackelberg game model is established, so that both the upper-layer aggregator and the lower-layer multi-microgrid tend to maximize the benefits of the aggregator and the lower-layer multi-microgrid; a Stackelberg game model is solved byadopting a particle swarm algorithm, and the electricity purchasing and selling price is optimized by the upper-layer aggregator by adopting the particle swarm algorithm; and the lower-layer multi-microgrid adopts cplex software to solve and optimize an electricity purchasing and selling plan, so that the benefit is maximized. According to the method, the power interaction among the micro-grids is improved, the internal power sharing capability is improved, and the interaction power between the micro-grids and the aggregator is reduced; a Stackelberg game model is provided, the interaction power of peak and valley periods is reduced and increased respectively, and the effects of peak clipping and valley filling are achieved.

Description

technical field [0001] The invention relates to the technical field of multi-microgrid double-layer optimization control, in particular to a hybrid game-based multi-microgrid double-layer coordination optimization scheduling method. Background technique [0002] In the era of smart grids, the microgrid project is vigorously developed, and more microgrids are gathered to form a multi-microgrid system. Each microgrid performs power mutual aid through the microgrid group, which enhances the power supply reliability and operation economy of the overall system of the microgrid group. sex. Microgrids can not only trade energy with the distribution network, but also between microgrids, that is, through energy mutual aid and collaborative optimization control, the autonomy and accommodation capacity of the multi-microgrid system can be improved and economic benefits can be achieved. [0003] In the prior art, the optimal scheduling of multi-microgrids, simply using the Stackelberg ...

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Problems solved by technology

[0003] In the prior art, the optimal scheduling of multi-microgrids, simply using the Stackelberg game cannot distribute the income fairly and reasonably, and cannot guarantee the income of a single microgrid or reduce its cost; simply using the Shapley value method cannot guarantee the benefits of both the multi-microgrid system and the aggregator

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