基于分区电价的跨区电力调度双层优化模型  

Bi-level optimization model of inter-regional power dispatch based on regional electricity price

作　　者：张亮[1] 王秀丽[1] 王建学[1] 郑伊俊 马骞[2] 王子强[2] ZHANG Liang;WANG Xiuli;WANG Jianxue;ZHENG Yijun;MA Qian;WANG Ziqiang(School of Electrical Engineering,Xi’an Jiaotong University,Xi’an 710049,China;Power Dispatching Control Center of China Southern Power Grid,Guangzhou 510000,China)

机构地区：[1]西安交通大学电气工程学院,陕西西安710049 [2]中国南方电网电力调度控制中心,广东广州510000

出　　处：《电力自动化设备》2023年第8期195-201,共7页Electric Power Automation Equipment

基　　金：中国南方电网新型电力系统创新项目(000000KK52210079)。

摘　　要：为充分利用跨区调度资源,提出一种基于分区电价的跨区电力调度双层优化模型。采用等效发电成本曲线对区域内部的煤电机组出力进行建模,采用一种基于整数规划的机会约束方法对风电和光伏出力进行建模。建立与分级调度模式相适应的双层优化模型,作为上级调度机构的上层模型以区域间送受电量为决策变量,以区域间送受电量价值最大化为目标,下层模型实现区域内部的经济调度。根据卡罗需-库恩-塔克(KKT)条件将双层模型转化为单层模型进行求解。算例结果验证了所提模型的有效性。所提模型在送电区域和受电区域之间维持一定的电价差异,通过传输较少的电量缓解受电区域的电力供需矛盾。In order to fully use the inter-regional dispatch resource,a bi-level optimization model of inter-regional power dispatch based on regional electricity price is proposed.The equivalent generation cost curve is adopted to model the output of coal-fired units within the regions,and the chance constraint method based on integer programming is adopted to model the output of wind power and photovoltaic.A bi-level optimization model suitable for hierarchical dispatch mode is established.As the superior dispatch organization,the upper level model takes the inter-regional transmission power as the decision variables,and takes the maximum value of inter-regional transmission electricity as the goal.The lower level model realizes the economic dispatch within the regions.The bi-level model is transformed into a single-level model for solution according to Karush-Kuhn-Tucker(KKT)condition.The example results verify the effectiveness of the proposed model,which maintains a certain electricity price difference between the power sending region and power receiving region,and alleviates the power supply and demand contradiction in the power receiving region by transmitting a small amount of electricity.

关 键 词：跨区电力调度 机会约束 双层优化 KKT条件 等效发电成本曲线 

分 类 号：TM732[电气工程—电力系统及自动化]