考虑运行方式优化和拓扑校正控制的参考电网优化方法  

Optimization method for reference network considering operation mode optimization and topology correction control

作　　者：孙东磊 李雪亮 韩学山[2] 李山[2] 杨思 杨金洪 SUN Donglei;LI Xueliang;HAN Xueshan;LI Shan;YANG Si;YANG Jinhong(Economic ＆ Technology Research Institute of State Grid Shandong Electric Power Company, Jinan 250021, China;Key Laboratory of Power System Intelligent Dispatch and Control of Ministry of Education （Shandong University）, Jinan 250061, China;State Grid Shandong Electric Power Maintenance Company, Jinan 250021, China)

机构地区：[1]国网山东省电力公司经济技术研究院,山东济南250021 [2]电网智能化调度与控制教育部重点实验室(山东大学),山东济南250061 [3]国网山东省电力公司检修公司,山东济南250021

出　　处：《电力系统保护与控制》2018年第13期92-97,共6页Power System Protection and Control

基　　金：国家自然科学基金项目资助(51477091);国家重点基础研究发展计划项目资助(973计划)(2013CB228205)~~

摘　　要：针对现有参考电网模型未涉及电网现状以及未关联电网运行策略的不足,提出了考虑运行方式优化和拓扑校正控制的参考电网优化方法,为输电网灵活规划提供重要参考。基于前瞻时间尺度内各时段负荷预测值和规划网络候选支路方案,构建以最小化发电成本和输电成本之和为目标,以系统正常运行状态以及N-1事故状态下的运行安全要求为约束条件的参考电网优化模型。对优化模型中混合整数非线性约束式进行处理,将其转换为混合整数二次规划模型,并采用混合整数二次规划法对优化模型进行求解,得到最终的优化方案。最后,通过算例分析说明了所提方法的有效性。Considering the shortage of the existing reference network models rarely taking the performance of realistic power grid and its operation modes into consideration, an optimization method for reference network considering operation mode optimization and topology correction control is proposed to provide guidance for transmission flexible planning. Based on the forecasted load level in the schedule time scale and candidate branches in network planning strategy, a novel model for reference network is built to minimize the total generation cost and transmission cost, in which the security constraints such as transmission line constraints under normal and N- 1 contingency conditions should be respected. The proposed model is a complex mixed-integer nonlinear problem mathematically, and can be converted to a mixed-integer quadratic programming problem, which is solved by the mature mixed-integer quadratic programming method to attain the optimization scheme. Finally, case studies are conducted to illustrate the effectiveness of the proposed method.

关 键 词：参考电网 电网评估 运行方式优化 拓扑校正控制 灵活规划 

分 类 号：TM732[电气工程—电力系统及自动化]