电网阻抗评估翻译

《电网阻抗评估翻译》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、POWERQUALITYRESPONSIBILITIESBYGRIDIMPEDANCEASSESSMENTATAWINDPOWERPRODUCTIONSUMMARYThepurposeofthispaperistodiscussthegridimpedanceassessmentmethodatwindfarmterminals.Thenonintrusivemethodusesvariationsofthewindpowerproduction,andthispermanentvariabilityallowsus

2、toapplythesourceimpedanceidentificationprocess,assuringitsassessment.NewalgorithmsaredevelopedtakingasareferencetheaccurateGPSsynchronizedmeasurementofphaseataverystablepowerplant,toevaluatethesourceimpedanceatawindfarmpointofcommoncoupling(PCC)wherecomplexvari

3、ationsofthevoltageareexpected.Theinstantaneousvalueofthegridimpedancewill,notonly,allowassigningresponsibilitiesbutalsowillfacilitatethedesignofequipments,networkcomponents,controlsystemstuningandprotectionsconfiguration.Thedevelopmentofdispersedgenerationwillb

4、epositivelyinfluencedbythecapacityofmeasuringthenetworkstrength.在风力发电量上通过电网阻抗评估电能质量概要本文的目的是探讨在风力发电厂的电网阻抗的评估方法。非侵入性的方法使用于各种不同的风力发电量，这种永久的变化,使得我们可以运用源阻抗识别过程,保证其评估。在一个稳定的电厂新算法被发展作为精确GPS同步测量阶段，评价在风力发电场源阻抗连接点点(PCC)的预期的复杂变化的电压。电网阻抗的瞬时值，不仅是允许指定的责任而且也要便于设备的设计，网络组件，控制系统

5、的调整和保护的配置。分散一代的发展肯定受网络力量的测量能力的影响。THETRUEHARMONICEMISSIONLEVELStandardsarereadyprovidingrecommendationforpreparingthemeasurementsandassessmentofpowerqualitycharacteristicsofwindturbines.Oneimportantquestionisraised:Arethesefluctuationscausedbythewindturbineorbyo

6、therfluctuatingloads?Inotherwords,whoisresponsible?Generally,theinfluenceofawindturbineonthevoltagequalityofthegriddependsnotonlyontheturbinebutalsoonthegridwhereitisconnected.TheEuropeanWindTurbineTestingProcedure(EWTTP)reporthasillustratedthatthegridimpedance

7、angleandshortcircuitpowerhaveanimportantinfluenceonpowerquality.Wearethenfacingaverycomplexproblem:howtoassesstheemissionlevelofaparticulardistortedgenerationtakingintoaccounttheinstantaneousfundamentalandharmonicsourceimpedancevariationsofapowernetwork.真正的谐波辐射

8、水平风力汽轮机发电质量的测量和评估标准已经被准备提供并推荐。一个重要的问题是：风涡轮或者其他波动的负荷会造成波动吗？换句话说,谁负责?一般来说,风力机的影响,对电网电压质量不仅取决于涡轮还在电网是否连接。欧洲风力发电机测试程序(EWTTP)。报告显示了电网阻抗的角度和电流短路对电能质量有重要影响。我们要面对一个非常复杂的问题:如何评估一个电网瞬