计及风电不确定性的多场景多时段安全约束机组组合解耦求解方法  

Multi-scenario multi-temporal decomposition method for security-constrained unit commitment considering uncertainty of wind power

作　　者：吴雄[1] 何雯雯 李晓飞 麻淞 刘炳文 WU Xiong;HE Wenwen;LI Xiaofei;MA Song;LIU Bingwen(School of Electrical Engineering,Xi’an Jiaotong University,Xi’an 710049,China)

机构地区：[1]西安交通大学电气工程学院,陕西西安710049

出　　处：《电力自动化设备》2024年第3期91-97,共7页Electric Power Automation Equipment

基　　金：国家电网有限公司科技项目(5108-202218280A-2-236-XG)。

摘　　要：为了加速求解计及风电不确定性的安全约束机组组合问题,提出计及风电不确定性的多场景多时段安全约束机组组合解耦求解方法。将原问题解耦为多个场景的安全约束机组组合问题;通过将各场景的调度时段分为多个子时段对各场景安全约束机组组合问题进行解耦,形成多个并行的子问题;为了确保多场景解耦和多时段解耦解的可行性,利用一致性约束耦合不同的子问题,并在目标函数中添加惩罚项。通过算例分析验证了所提方法的有效性。结果表明,在可接受的精度下,所提方法比传统集中式方法显著缩短了多场景安全约束机组组合问题的求解时间。In order to speed up the solution of security-constrained unit commitment problem considering the uncertainty of wind power,a multi-scenario multi-temporal security-constrained unit commitment decom-position method considering the uncertainty of wind power is proposed.The original problem is decom-posed into the security-constrained unit commitment problems of several scenarios.The security-constrained unit commitment problem of each scenario is decomposed by dividing the dispatching period of each scenario into several sub-periods,and several parallel subproblems are formed.In order to ensure the feasibility of the solution for multi-scenario decomposition and multi-temporal decomposition,the consistency constraints are used for coupling different subproblems,and the penalty terms are added to the objective functions.The effectiveness of the proposed method is verified by example analysis.The results show that,compared with the conventional centralized method,the proposed method can significantly shorten the solution time of multi-scenario security-constrained unit commitment problem with acceptable accuracy.

关 键 词：风电 安全约束机组组合 多场景解耦 多时段解耦 目标级联分析 

分 类 号：TM732[电气工程—电力系统及自动化] TM614