基于dsp的配电网单相接地故障选线装置的研制

《基于dsp的配电网单相接地故障选线装置的研制》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、RESEARCHONDISTRIBUTIONNETWORKSINGLE．PHASEGROUNDINGFAULTYLINESELECTIONDEVICEBASEDoNDSPABSTRACTSingle—phasegroundingfaultisthemostcommonfaultinsmallcurrentgroundingsystem．Aftersingle—phasegroundingfaultoccured，quicklydetecting，andremovingthefaultylinei

2、snecessarytoavoidenlargingtheaccidentandensurethesecurityandstabilityofthedistributionnetwork．Butthefaultylineselectionproblemhasn’tbeenwellsolvedinengineering．Basedonalotofstudiesondomesticandforeignexistingfaultylineselectionmethods，aimedatthedisad

3、vantageof‘Sinjection’methodthatitcannotadapttothesituationofhighresistantgroundingfault，animprovedmethodbasedonutilizingtheactivepowerofinjectedsignalisproposedinthisthesis．AlargenumberofexperimentsweredoneontheMATLAB／SIMULINKplatformandtheexperiment

4、s’resultsprovedthefeasibilityoftheproposedmethod．AFaultylineselectiondevicebasedonsignalinjectionmethodandDSPcontrollerwasdesigned．Thecontrollerisone32bitsfixed—pointdigitalsignalprocessorTMS320F2812producedbytheTICorporation．Thedeviceismainlycompose

5、dofDSPcoreboard，signalinjectionmodule，signalcollectionmodule，man—machineinterfacemoduleandothercomponents．ThesoftwaresystemofthedeviceisdesigndedbyClanguageintheCCS3．3IDEanditincludsPWMsignalgeneration，A／Dconversion，FFToperation，linejudgingandLCDdisp

6、laypartetc．Alowvoltagedistributionnetworkanalogmodel，whichlinevoltageis380v,wasbuiltinlaboratory．Withthismodel，wehavefinishedthedebuggingexperimentsofthefaultylineselectiondevice．KEYWORDS：Faultylineselection；DSP；Signalinjectionmethod；STMITT，TNK目录摘要⋯⋯

7、⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯。IABSTRACT⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯II录⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．III第一章绪论⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．11．1论文的研究背景及意义⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．11．2小电流接地选线的研究概况⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯

8、⋯⋯⋯．．11．3本论文的主要工作⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯一2第二章国i内J'l-现有的小电流接地选线原理分析⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯32．1基于故障信息稳态分量的选线法⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．32．2基于故障信息暂态分量的选线法⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．52．3基于J'I-DH信号的选线法⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯一62．4其他选线方法⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．6