风火联合发电系统日前-日内两阶段协同优化调度  

Optimal Collaborative Dispatching of Wind-thermal Combined Power Generation System in the Day-ahead and Intra-day Stages

作　　者：叶林[1] 张步昇 郭凯蕾 裴铭 夏雪[2] 谢欢[2] YE Lin;ZHANG Busheng;GUO Kailei;PEI Ming;XIA Xue;XIE Huan(College of Information and Electrical Engineering,China Agricultural University,Haidian District,Beijing 100083,China;North China Electric Power Research Institute Co.,Ltd.,Xicheng District,Beijing 100045,China)

机构地区：[1]中国农业大学信息与电气工程学院,北京市海淀区100083 [2]华北电力科学研究院有限责任公司,北京市西城区100045

出　　处：《中国电机工程学报》2025年第7期2527-2539,I0007,共14页PROCEEDINGS OF THE CHINESE SOCIETY FOR ELECTRICAL ENGINEERING

基　　金：国家自然科学基金项目(U22B20117)。

摘　　要：风火联合发电系统协同调度过程受风电不确定性和风火协同特性的影响显著。为此,该文提出一种基于改进风电不确定集鲁棒优化的风火联合发电系统日前-日内两阶段协同优化调度方法。首先,建立日前-日内两阶段风火协同调度模型,构建基于“闭环反馈型”数据驱动鲁棒优化的风电不确定集合;其次,提出考虑改进风电功率历史预测误差不确定集的风火协同鲁棒调度方法,实现日前-日内两阶段风、火协同调度计划的动态随机筛选;然后,采用鲁棒对偶理论将不确定调度模型进行转换,并基于反馈流松弛和有效不确定域空间辨识约束的改进分支定界法对转换后的数学模型进行求解;最后,在IEEE-39节点系统上进行算例验证。结果表明:相比传统风火打捆调度模式,所提方法更好地提升风火协同调度能力和经济效益,有效促进风电消纳。The dispatching of the wind-thermal combined power generation system is significantly affected by the wind power uncertainty and wind-thermal synergistic characteristics.Therefore,this paper proposes a day-ahead and intra-day stages cooperative dispatching method for a wind-thermal combined power generation system based on the improved robust optimization of wind power uncertainty sets.First,a day-ahead and intra-day stages wind-thermal cooperative dispatching model is established,and the uncertainty set of wind power is constructed based on the"closed-loop feedback-type"data-driven robust optimization.Next,a wind-thermal cooperative robust dispatching method considering the improvement of the uncertainty set of wind power historical prediction error is proposed to achieve the dynamic random search of the day-ahead and intra-day stages wind-thermal cooperative dispatching plan.Then,the uncertain dispatching model is transformed using the robust duality theory,and the transformed mathematical model is solved by the branch and bound method,which is improved based on the feedback flow relaxation method and the effective uncertain domain space identification constraint method.Finally,cases validation is conducted on the IEEE-39 node system,the results show that,compared with the conventional wind-thermal bundled dispatching modes,the proposed method enhances the wind-thermal coordinated dispatching ability and economic efficiency,and significantly promotes wind power consumption.

关 键 词：风火协同调度 风电不确定集 鲁棒优化 改进分支定界法 动态潮流约束 

分 类 号：TM73[电气工程—电力系统及自动化]