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时间:2020-03-28
《基于重构方案线路投运风险最小的机组恢复顺序优化.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第44卷第11期电力系统保护与控制Vo1.44No.112016年6月1曰PowerSystemProtectionandControD0I:10.7667/PSPC151202基于重构方案线路投运风险最小的机组恢复顺序优化王江宇,刘艳(华北电力大学电气与电子3-程学院,河北保定071000)摘要:电力系统人停电后,合理有序的恢复控制对于减小停电损失具有重要意义。以架空线路投运作为研究重构过程的切入点,提出了利用线路投运町靠性指标优化机组恢复顺序的方法。首先,针对当前重构方案线路投运风险定义的不足,提出了与停电损失评价标准相一致的严重程度指标。其次
2、,通过网架恢复与机组投运过程的交互仿真,建立了与恢复实际更加契合的重构模拟时步框架。在此基础卜,构建了以重构方案线路投运风险最小为目标的机组恢复顺序优化模型,并采用交叉粒予群算法和弗洛伊德算法对模型进行优化求解。针对新英格兰10机39节点系统的仿真结果表明,采用该方法获得的机组恢复方案在降低停电损失的同时,充分考虑可能的恢复路备用通道,能够更加有效地应对潜在的线路投运失败情况。关键词:大停电:网架重构:重构方案线路投运风险Optimizationofunit’Srestorationsequencebasedonminimizingoflines’
3、restorationriskc0rrespOndingt0rec0nfigurati0nschemeWANGJiangyu,LIUYan(SchoolofElectrical&ElectronicEngineering,NorthChinaElectricPowerUniversity,Baoding071000,China)Abstract:Afteralarge—scaleblackout,reasonableandorderlyrestorationisofgreatsignificanceforminimizingtheloss.Thep
4、rocessofnetworkmconfigurationisinvestigatedspeciallyfromthepointofswitchingintransmissionlines.Takinglines’operationalreliabilityintoconsideration,amethodofoptimizingunits’restorationsequenceisproposed.Firstly,aseverityindexintermsoftheoutagelosscriteriaisputforwardtoimproveth
5、edefnitionoflines’restorationriskcorrespondingtoreconfigurationscheme.Secondly,atime—stepframeofreconfigurationsimulationaccordantwiththeactualsituationisestablishedbymeansofinteractivesimulationbetweennetworkreconstructionandunits’restoration.Furthermore,themodelofoptimizingu
6、nits’restorationsequenceisconstructedbasedonminimizinglines’restorationriskcorrespondingtoreconfigurationschemeandsolvedbythecrossparticleswarmoptimizationandFloydalgorithm.TheoutcomeofitsapplicationontheNewEngland10-unit39一buspowersystemindicatesthatunits’restorationsequences
7、obtainedfullyconsiderpossiblesparepathsforrestorationaswellasminimizationofoutageloss.Therefore,themethodproposedcanmoreeffectivelycopewiththepotentialfailureduringswitchinginlines.ThisworkissupportedbyNationalNaturalScienceFoundationofChina(No.51277076).Keywords:large—scalebl
8、ackout:networkreconfiguration:lines’restorationriskcorrespond
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