计及分布式电源不确定性的多微网鲁棒博弈研究

Research on robust game in multi-microgrid considering distributed generation uncertainty

多微网系统可以提高分布式电源消纳率和系统供电稳定性,分布式电源出力的不确定性却给多微网的日前调度带来挑战。文章综合考虑多微网系统中分布式电源出力不确定性和各微网间的非合作博弈行为,提出了一种针对多主体决策的非合作鲁棒博弈优化模型,并采用列约束生成算法对所构建模型进行求解,从而得到各微网在非合作博弈模式下的鲁棒Nash均衡解以及调度方案。仿真结果表明,与确定性调度方案相比,所构建的鲁棒博弈优化调度方案可以在保证微网运行经济性的同时,还具备一定的鲁棒性。

Multi-microgrid can improve energy consumption rate of distributed generation and stability of energy supply.However,the uncertainty of distributed generation brings a series of challenges to the daily scheduling of multi-microgrid.This paper proposes a non-cooperative robust game optimization model considering the uncertainty of distributed generation and the non-cooperative game behavior among microgrids.The column constraint generation algorithm is used to search the robust Nash equilibrium of the formulated non-cooperative game model.Simulation results show that,compared with the deterministic scheduling scheme,the proposed scheduling scheme based on robust game can guarantee the economy and robustness in the operation of multi-microgrid.