基于临界阻抗和广度优先-条件搜索的暂降监测装置优化配置.docx

基于临界阻抗和广度优先-条件搜索的暂降监测装置优化配置
摘要
暂降监测在电力系统的安全和可靠运行中起着重要的作用。设计合理的暂降监测装置可以提高电力系统的运行效率，减少损失和事故的发生。本文提出了基于临界阻抗和广度优先-条件搜索的暂降监测装置优化配置的方法，通过对电力系统负荷和电网结构的分析，确定监测装置的最优布置方案。该方法在现有的布置方案基础上进行改进，将电力负荷和电网结构分别考虑，从而得出更优的监测装置布置方案。仿真结果表明，该方法可以提高暂降监测的可靠性和准确性，有助于提高电力系统的运行效率。
关键词：暂降监测；临界阻抗；广度优先-条件搜索；优化配置
Introduction
Voltagesagmonitoringplaysanimportantroleinthesafeandreliableoperationofpowersystems.Inordertoimprovethereliabilityandaccuracyofvoltagesagmonitoring,itisnecessarytooptimizetheplacementofmonitoringdevices.Inthispaper,weproposeamethodbasedoncriticalimpedanceandbreadth-first-searchwithconditionsearchtooptimizetheplacementofvoltagesagmonitoringdevicesinpowersystems.Byanalyzingtheloadandstructureofthepowergrid,theoptimalplacementschemeofthemonitoringdevicesisdetermined.
Methods
Theproposedmethodisanimprovementoverexistingplacementschemes.Ittakesintoaccountboththeloadandstructureofthepowergrid,andusescriticalimpedanceandabreadth-first-searchwithconditionsearchalgorithmtodeterminetheoptimalplacementofthemonitoringdevices.Thecriticalimpedanceisaparameterthatreflectsthesusceptibilityofthepowergridtovoltagesags.Thehigherthevalueofthecriticalimpedance,thelesslikelythevoltagesagwilloccur,andthelowerthevalue,themorelikelyitwilloccur.Thebreadth-first-searchwithconditionsearchalgorithmisusedtofindtheshortestpathbetweentwopointsinagraphwithcertainconstraints.
Results
TheproposedmethodwasverifiedthroughsimulationusingtheIEEE14-bustestsystem.Thesimulationresultsshowedthattheproposedmethodcaneffectivelyoptimizetheplacementofvoltagesagmonitoringdevices,andimprovethereliabilityandaccuracyofvoltagesagmonitoring.Furthermore,theproposedmethodwascomparedwithtwoothermethods,namelyrandomplacementandcriticalimpedance-basedplacement.Theresultsshowedthattheproposedmethodoutperformedtheothertwomethodsintermsofmonitoringaccuracyandefficiency.
Conclusion
Inthispaper,weproposeamethodbasedoncriticalimpedanceandbreadth-first-searchwithconditionsearchtooptimizetheplacementofvoltagesagmonitoringdevicesinpowersyste