基于条件风险价值的含风电多区域机组组合模型  

Multi-regional Unit Commitment Model with Wind Power Based on Conditional Value at Risk

作　　者：殷永亮 吴琼 张建平 张衡[4] 程浩忠[4] 张啸虎 YIN Yongliang;WU Qiong;ZHANG Jianping;ZHANG Heng;CHENG Haozhong;ZHANG Xiaohu(School of Electrical Engineering,Shanghai University of Electric Power,Shanghai 200093,China;China Yangtze Power Co.,Ltd.,Beijing 100038,China;Planning Statistics Department,East China Power Grid Company,Shanghai 200122,China;Key Laboratory of Power Transmission and Conversion of Ministry of Education,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海电力大学电气工程学院,上海200093 [2]中国长江电力股份有限公司,北京100038 [3]国网华东分部规划统计部,上海200122 [4]上海交通大学电力传输与功率变换控制教育部重点实验室,上海200240

出　　处：《电气传动》2023年第1期52-58,共7页Electric Drive

基　　金：国家重点研究发展计划(2016YFB0900100)。

摘　　要：随着风电装机及并网规模不断扩大,通过联络线将电网互联可以在更广范围内对其消纳,但风电出力的不确定性造成系统运行风险增加。为了平衡电网互联的多区域机组组合运行经济性和风险损失,在多区域机组组合中引入条件风险价值对风险进行量化,提出了考虑条件风险价值的多区域机组组合模型。此外,为了协调联络线运行的经济性和灵活性,对联络线运行方式也进行了详细建模,并通过引入辅助变量,将联络线运行方式模型转化为混合整数线性约束,最终将所提多区域机组组合模型转化成混合整数线性规划形式进行求解。用改进的两区域系统作为仿真算例,结果表明该方法可以对系统的尾部风险进行有效控制,在保证多区域互联网电网运行经济性的同时提高了抵御风电出力不确定性的能力。With the increasing scale of wind power installation and grid connection,the interconnection of power grids through tie lines can absorb wind power in a wider range,but the uncertainty of wind power output leads to an increase in the risk of system operation.Conditional value-at-risk(CVaR)was introduced in multi-regional unit commitment to quantify the risk,and a multi-regional unit commitment model considering conditional value at risk was proposed,so as to balance the operation economy and risk loss of multi-regional unit commitment with an interconnected power grid.Besides,the tie line operation mode was modeled in detail to coordinate the economy and flexibility of tie line operation.By introducing auxiliary variables,the tie line operation mode model was transformed into a mixed-integer linear constraint.Finally,the proposed multi-region unit commitment model was transformed into a mixed-integer linear programming form for the solution.With the improved two area system as a simulation example,the results demonstrate that this method can effectively control the tail risk of the system and improve the ability to resist the wind power output uncertainty while ensuring the operation economy of multi-area internet power grid.

关 键 词：电网互联 条件风险价值 多区域机组组合 联络线 不确定性 

分 类 号：TM73[电气工程—电力系统及自动化]