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ID:24858674
大小:69.71 KB
页数:6页
时间:2018-11-16
《孤岛与并网双模式光伏发电系统的设计》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、孤岛与并网双模式光伏发电系统的设计摘要:本文主要研究孤岛与并网双模式运行,其中孤岛检测与保护是本文章研究重点。孤岛检测选用过、欠电压检测的电压相位突变检测方法,这种检测方法克服了采用单独的电压相位突变检测方法在阻性负载下失效的问题,能够实现快速有效的孤岛检测功能,且采用了一种预防因电网的波动与大负载的突然加人或断开导致电网不稳定引起的虚假孤岛保护方法。本文建立了孤岛保护的仿真模型,通过数据解析、模型创建和仿真,验证了该设计孤岛保护模型的可靠性和有效性。关键词:光伏发电;并网;孤岛检测;孤岛保护分类号:TP273文献标识码:A文章编号:2095
2、-2163(2015)05-DesignofIslandandGrid-connectedModeOperationofPhotovoltaicPowerGenerationSystemCHENXi(SchoolofPhysicsandZhoukouNormalUniversity,China)Abstract:Inthispaper,ofthispaperistostudyElectricalEngineering,ZhoukouHenan466000,themainresearchobjecttheisolatedislandandgri
3、d-connectedmode,andtheislanddetectionandprotectionisthekeypointinthisarticle.Thispaperchoosestheover-undervoltagedetectionandvoltagephasemutationdetectionmethod,whichovercomestheproblemthatthemutationdetectionmethodisfailurewhentheloadispureresistive.Thismethodisfastandvali
4、d.Afalse-islandprotectionmethodhasbeenadoptedtopreventthepowergrid?sinstabilitybecauseofthegridfluctuationandlargeload'ssuddenturninoroff.Inthispaper,asimulationmodelisestablished,throughdataanalysis,modelcreationandsimulate,thereliabilityandvalidityofthedesignhasbeenvalida
5、ted.Keywords:SolarPhotovoltaicPowerGeneration;Detection;IslandModel;IslandProtection0引言随着全球经济的飞速发展、能源的大量消耗,能源危机已经日益加深,太阳能作为优质的绿色能源得到了越来越广泛的关注和应用。本文设计了一种混合型光伏发电系统,可以做独立发电源使用,也可以多余电量并入电网,具有孤岛监测保护功能,安全性高,实用性强。grid-connectedmode,andtheislanddetectionandprotectionisthekeypointin
6、thisarticle.Thispaperchoosestheover-undervoltagedetectionandvoltagephasemutationdetectionmethod,whichovercomestheproblemthatthemutationdetectionmethodisfailurewhentheloadispureresistive.Thismethodisfastandvalid.Afalse-islandprotectionmethodhasbeenadoptedtopreventthepowergri
7、d?sinstabilitybecauseofthegridfluctuationandlargeload'ssuddenturninoroff.Inthispaper,asimulationmodelisestablished,throughdataanalysis,modelcreationandsimulate,thereliabilityandvalidityofthedesignhasbeenvalidated.Keywords:SolarPhotovoltaicPowerGeneration;Detection;IslandMod
8、el;IslandProtection0引言随着全球经济的飞速发展、能源的大量消耗,能源危机已经日益加深,太阳能作为优质的绿色能源得到了越来越广泛的关注和应用。本文
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