基于niosⅱ的输电线路行波故障定位系统设计分析

《基于niosⅱ的输电线路行波故障定位系统设计分析》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、浙江大学硕十学位论文ABSTRACTLDngdistallcepoweredtr鲫smissionliIlesareoRenhlmdredsofblometerslong，tllework钮v的nmentof仃锄missionlinesisVe巧p00r，asareSulttllatthen10stofpowersySt锄f撕hllapp％edatconductors．Tlle仃aditional溅d0flocatillgmef．aultist0锄alyzetlleaccidemsIIecorde

2、dwavedata，theme伊atedpoweroutage砌啪ati吗趾dmeIlforecaStmelikelypo硫0ffault．Workerwouldbesenttoconfimtlleinf．onTlation．nlismethodistime-c伽sulning锄dmemciem．OrusillgiIIlpedaIlceprote嘶ondcvicet0me鲫涨地ehpedellcebe附e胁tllepo硫0ftlleshortc沁uitpointandthepointoftllei

3、Ilstallationofnledevice，觚dthencomparemeimpedancewimmes锄e1inelengtllt0getnleflauhdistance．Butbyme仃觚sitionf．aultresistance，shoncircuitarcrcsistanceVoltagemeaSurem饥ts，theaccl啪cyisnot11i曲．Tllerefore，也e咖dyofhi曲·precision订狮s“ssionlinef．aultlocationllas黟eats

4、i鲥ficance．111isp印er锄a1)，zesmatifnle订aIlsmissionlinefailurehaVeh印peIled，fault仃a11sient打aVeliIlgwavewillspreadtothelineatbothcllds．nhasdiscllssedtheadv锄tagesa

5、lddisadVantagesofnleV撕ollSwaySbasedontransiem仃aVelingwaVefault10cation锄dsuitabili吼alldchoosedt

6、hemetl硼ofloCatingthcponoffaulttlll‘ou曲仃aIlsient缸．aVelingwaVebasedonGPSillmedesi印．nereceiVingdeVicesarei11stalledatbotllendsoflinest0recordtothetraVeling—wave疵Valtime，andgettllere砌toftinledi脑．encetocalculatethepreciselocation．nemethodisaccurateandnota疏

7、ctedbythesystem叩酬ionmode，menleo觚cale玎orislesstllaIl30m．1hkingintoaccountnlatthedistortionofwaVewouldcausenlefirSt枷Valthne㈣rof仃锄sieIlttraVelingwaVe，t11emethodofwaVelett船nsfb肌wasusedto锄alysetheacquisitionofthctraVelingwaVedata．andf．aStMallatwaVelett删[1s

8、f．o衄w弱usedtodistiIlguishthemaxim啪a_bsoluteValueofthewaVedatatodetemlillet11efirstwaVeamvaltiIIleandreducethepositioniI唱㈣r．Me锄【wllile，devicesweredesignedtocollcctandmeaSul．ethe仃ansienttraVelingwavef．om胁ain“sp印er．USingacombinationofFPGA砌dSD凡蛐Itecllnolog

9、yIIIValueofmewaVedatatogetthearriVaItimeoftraVelingwaVehead．Keywords：f．ault吣iemtraVeliIlgwaVe；仃aVeliI玛wavef．aultlocation；waveletMallatalgorithm；FPGA；NIOSIIⅣ浙江大学硕十学位论文目录jlj(谢⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯I摘要⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯