考虑风光互补特性的微电网动态经济优化调度

Microgrid Dynamic Economic Dispatch Considering Wind-solar Complementary Characteristics

微电网作为目前解决传统能源污染及储量不足问题的有效手段之一受到了广泛的关注。提出考虑风光互补特性的微电网动态经济调度模型。首先采用Copula函数对风能与光能的互补特性进行建模与分析;其次基于互补特性建模所得的相关性指标,利用copularnd函数进行抽样以获得互补特性场景样本,并以概率距离为基础进行场景消除获得误差场景,从而在经济调度之中考虑随机能源的不确定性及互补特性,以求解风光互补特性的微电网24h动态经济调度模型;最后以含微型燃气轮机、燃料电池、柴油机、风机、光伏电源及蓄电池等多种类型分布式电源的并网运行微电网为例,验证了本文所提算法的有效性。

As one of the effective means to solve the problems of traditional energy pollution and insufficient reserves, microgrid has received widespread attention. The dynamic economic scheduling model of microgrid is proposed considering wind and solar complementary characteristics. Firstly, the Copula function is used to model and analyze the complementary characteristics of wind and solar. Secondly, based on the correlation index of complementary feature modeling, the copularnd function is used to obtain the complementary feature scene samples, and the scene is eliminated based on the probability distance to obtain the error scene. Then the uncertainty and complementarities of the stochastic energy are taken into account in the economic dispatching model, which is used to solve the 24h dynamic economic dispatching model of microgrid considering wind-solar complementary. Finally, the effectiveness of the proposed algorithm is verified by the microgrid dynamic economic dispatching model connected with micro turbine, fuel cell, diesel engine, wind turbine, photovohaie cell, battery and other types distributed power.