| 引用本文: | 徐伟,李群,杨君军,鲍颜红.基于综合贡献度指标的紧急减负荷控制多目标优化方法[J].电力自动化设备,2018,(8): |
| XU Wei,LI Qun,YANG Junjun,BAO Yanhong.Multi-objective optimization method for emergency load sheddingbased on comprehensive contribution index[J].Electric Power Automation Equipment,2018,(8): |
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| 摘要: |
| 紧急减负荷控制是应对特高压直流闭锁故障后输电断面潮流越限的重要技术措施。提出一种基于综合贡献度指标的紧急减负荷控制多目标优化方法，考虑可中断负荷对负荷切除总量、用户切除总数这2个目标函数的不同贡献程度，通过并行计算形成分布均匀的Pareto解。考虑发电机的二次调频能力计算负荷切除后的系统潮流，采用交流潮流校核对输电断面的功率越限量进行修正，求解满足计算精度要求并能够完全消除功率越限量的负荷控制方案。 |
| 关键词: 紧急减负荷 可中断负荷 多目标优化 功率灵敏度 综合贡献度指标 |
| DOI：10.16081/j.issn.1006-6047.2018.08.027 |
| 分类号:TM761 |
| 基金项目:中国博士后科学基金资助项目(2016M591738)；国家电网公司科技项目(面向特高压交直流大受端电网的大规模负荷精准协调互动控制技术研究) |
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| Multi-objective optimization method for emergency load sheddingbased on comprehensive contribution index |
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XU Wei1, LI Qun1, YANG Junjun2, BAO Yanhong2
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1.State Grid Jiangsu Electric Power Company Research Institute, Nanjing 211103, China;2.NARI Group Corporation, State Grid Electric Power Research Institute, Nanjing 211106, China
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| Abstract: |
| Emergency load shedding is an essential technical measure against the power flow violation-limit of transmission section caused by the blocking faults of UHVDC(Ultra High Voltage Direct Current). A multi-objective optimization method for emergency load shedding based on comprehensive contribution index is proposed, which considers the different contribution degrees of interruptible load on the objective functions of the total load shedding capacity and the total quantity of load shedding customers and forms well-distributed Pareto solutions by parallel calculation. The power flow after load shedding is calculated considering the secondary frequency regulation of generators and the over-load of transmission section is corrected by the AC power flow check, obtaining the load shedding scheme, which meets the requirements of calculation precision and can fully eliminate the over load. |
| Key words: emergency load shedding interruptible load multi-objective optimization power sensitivity comprehensive contribution index |
