基于混合博弈的多微电网双层协调优化调度

考虑多微电网系统(MMGS)和微电网聚合商(MA)所有权不同,以及各微电网(MG)间能量互济与利益分配,提出基于混合博弈的MMGS双层协调优化调度模型及其求解方法.上层MA与下层MMGS之间采用基于Stackelberg的主从博弈,保证MA与MMGS的利益双赢;MA作为领导者,以自身收益最大为目标,在证明Stackel...

Double-layer coordinated optimal dispatching of multi-microgrid based on mixed game

Considering the ownerships of MMGS(Multi-MicroGrid System) and MA(Microgrid Aggregator) are different and energy exchange and benefit distribution among each MG(MicroGrid),a double-layer coordinated optimal dispatching model based on mixed game of MMGS and its solving method are proposed. The master-slave game based on Stackelberg is adopted between the upper layer MA and the lower layer MMGS to guarantee a win-win result between MA and MMGS. MA, as the leader, takes its maximum benefit as the object, after the existence of Stackelberg game equilibrium solutions is verified, the particle swarm optimization algorithm based on quorum-sensing mechanism is adopted to solve the internal electricity price between the upper layer MA and the lower layer MGs. The lower layer MGs, as the followers, adopt cooperative game to trade electricity between each other, which improves residual electricity sharing level and realizes rational benefit distribution. MMGS takes its minimum cost as the object, and uses CPLEX to optimize electricity trading plan according to the internal electricity price and feeds it back to MA. The simulation example shows that the proposed method can effectively solve the equilibrium strategy between MMGS and MA, improve the benefit of MMGS, MA and each MG simultaneously, and make more effective use of MMGS resources.