考虑检修工期不确定的停电计划优化方法  

Optimization Method of Outage Plan Considering Uncertain Maintenance Period

作　　者：梁清清 李一铭 户秀琼[3] 黄冬梅 LIANG Qingqing;LI Yiming;HU Xiuqiong;HUANG Dongmei(Guangxi Agricultural Vocational University(Guangxi University Xingjian College of Sciences and Liberal Arts),Nanning 530005,China;Guangxi Power Grid Energy Technology Co.,Ltd.,Nanning 530023,China;Panzhihua University,Panzhihua 617000,China)

机构地区：[1]广西农业职业技术大学(原广西大学行健文理学院),广西南宁530005 [2]广西电网能源科技有限责任公司,广西南宁530023 [3]攀枝花学院,四川攀枝花617000

出　　处：《电工技术》2022年第2期89-92,共4页Electric Engineering

基　　金：2019年度广西高校中青年教师科研基础能力提升项目(编号2019KY0964)。

摘　　要：以新能源为主体的新型电力系统中,受新能源出力波动的影响,电力系统潮流呈现较大的波动性和方向不确定性,考虑经济性和设备利用率,输变电网络建设的冗余性相对于传统电网将大幅降低,输变电设备检修安排将面临更突出的安全风险。然而,一些重要检修受内外部因素影响,检修工期存在不确定性,进一步加剧了停电计划安排的难度。对此,提出考虑检修工期不确定性的停电计划优化方法,在考虑N-1安全校核的停电计划编排模型基础上,考虑检修工期延期概率,避免工期不确定导致后续检修因安全影响需要而大幅度调整,提升检修计划可执行性。IEEE 14节点与南方某局部简化电网的仿真分析结果表明,该方法能高效编排具有较高适应性和可执行性的停电计划。In the new power system with new energy as the main body,the power flow of the power system presents greater volatility and uncertainty of direction due to the fluctuation of the output of new energy.Considering the economy and equipment utilization,the redundancy of power transmission and transformation network construction will be greatly reduced compared with the traditional power grid,and the maintenance arrangement of power transmission and transformation equipment will face more prominent security risks.However,some important maintenance is affected by internal and external factors,and the maintenance period is uncertain,which further aggravates the difficulty of power outage planning.In this regard,a power outage plan optimization method considering the uncertainty of the maintenance period is proposed.On the basis of the power outage planning model that considers the N-1 safety check,the probability of the delay of the maintenance period is considered to avoid the uncertainty of the construction period and the subsequent maintenance due to safety impacts.The need for subsequent maintenance is greatly adjusted,and the enforceability of the maintenance plan is improved.The simulation results of IEEE 14 bus and a local simplified power grid in southern China show that this method can efficiently arrange outage plans with high adaptability and enforceability.

关 键 词：停电计划 检修延期 混合整数规划 N-1准则 

分 类 号：TM73[电气工程—电力系统及自动化]