多微网式虚拟电厂分布式电源优化研究与应用

Research and Application of Distributed Optimization of Multi-microgrid Virtual Power Plants

随着当今世界经济的发展,能源消耗不断地加剧,各式各样的新型能源不断地涌现出来。虚拟电厂以其可以实现发电机、储能装置、负荷、电动汽车等分布式能源的聚合和协调优化而备受瞩目。虚拟电厂一般可以包含多个微网,微网的数目越多,虚拟电厂的调控调度和操作难度越大。因此,现在微网的控制模式受到地理区域和规模的限制,在多微网时对电力的利用和规模化效益有局限性。为此,针对当前电力资源方面的问题,即如何花费最低的同时又能满足供应需求,文章从微网和配网的角度来进行分析研究,构建微网和配网的相关模型,研究配网和微网之间的能量交互和最优效益问题,并通过不断改变电价或其他参数进行分析和优化解决在当前电价下,微网和配网如何进行发电才能实现最优成本的问题。

With the development of today’s world economy,energy consumption continues to intensify,and various new energy sources continue to emerge.Virtual power plants have attracted much attention because they can realize the aggregation and coordination optimization of distributed energy sources such as generators,energy storage devices,loads,and electric vehicles.A virtual power plant can generally contain multiple microgrids.The more the number of microgrids,the more difficult it is to control and dispatch a virtual power plant.Therefore,the current control mode of microgrid is limited by geographical area and scale,and the utilization and scale benefits of electricity are limited when there are multiple microgrids.To this end,in view of the problems encountered by power resources in the current situation,how to obtain the lowest cost and meet the supply demand at the same time.Analysis and research are carried out from the perspective of microgrid and distribution network.Build related models of microgrid and distribution network,and study the energy interaction and optimal benefit between distribution network and microgrid.And by constantly changing the electricity price or other parameters for analysis and optimization,it solves the problem of how to generate electricity in the microgrid and distribution network to obtain the optimal cost under the current electricity price.