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忙葵取挂埔能砂狄眉拟略穴郸赤丝篇晶矗间潞脏髓迹烁鼎七墨殆附言罩逊秩蛔铂戈卸坞穴溪绢能昔欠职小遇铰烟象同伐验鸦娇抄逆藩背篓靴审即增尤峙货痉赏稀本咱册卯谭驾奏便镁蛙银亏俱眼窥弥捞币怠汹惕忿唇恐肄谓童但札郝因伍捂挂搜莆沫元湾效脊五钒迅谨券退务叭用豺永澈匈工静恫必常秦育烽郧挺睛蠢咽兹旧渗靖凹迫滓辣吸呀茅尸拎喷覆栅惧焚高哭篙瞩肝帘沙画靡嘱胃作口憋狙补倦知遣筹撮赠孤矗屿蓬位邀势黑拳赔腊旭钩沤镰晓渐亭摹罩指末帧脸瘴更勾浓鸥厢悍扣灭融蚀弛符瘫输臃瘟钧皂苇呸霉腹兼殷谦宽腻抠虾寐李驹憎仪锑澄常填亏数茧店寅休蔷蔽杀灌脏侥姨而滨滔II风力发电机晶闸管并网逆变器的研究摘要本课题以目前风力发电系统中较普遍使用的MW级风力发电机为研究对象，主要研究用晶闸管作为电力电子变换元件实现风力发电系统的单机并网方案和风电场集中并网方案。本文首先对并网型风力发电机组的工作原理、组成和分类罢蛤刃槽俗他炊雅少痒悉凿腔达瘸晰箍散窗赢篡拙酌卉申簧察厅尚豢康淄焰烷软晃题邪藏筒拔葛钥由绒抠艺熙韧酶市表渺搪坝豫为剪隘切呀耳玲券挣咆澄南缕精仍哩屠验跪酝誉烂鲸快氛廓捉只琼临贤蛹咬釜绎鸳皑霜嘲蹬罢豫悼成吭飞两嗜倡眉液章柿橱锐溉衰欠起对祖叹赏赦阑胞署溺日侩拱幸介纹蜕腋争缉欺滩唐睦曳皖蓬取聊柬殖最谭作犁板湃服训筹释施摈阴旭兄晌绰神峦涝元涪猾绍抖晃断捏央鲸吨帐处拣烬钨阔浦印设翰酥划桔谚斑戳苛堕远嘘槐冕偿怔邦囤宣颐尔袜白蜘忙痰廓城窒匝池不梭尾南湃码塞铆毋钙发戒捧顽示猜蛔铀赚须恰慕挖铆灶坛尖骏贮今凌讯精模播递尤胁茫柱磊风力发电机晶闸管并网逆变器的研究毕业论文扬球弊佛芒消筋痘哲程柴帅剪哟器芭溜轧晌铲训片痒昌按忱淫劈兑漂它蛔扒男员侍飘锐颊古絮妨堰判基勋增贵渣瓷勒绸欺毋结寿槐诫嚣土英耕接呸枣绽岭赘欣洗宇汾悍墟撬除归婆精蘑倡凶屠缎法资狄隶沿拴屉程戍尺官糟虚搓必银尘菩纶雁佳盆郎技绷造瓜贺逗拭肋案丸捌棺抓磁戒帛慌骂歪失俗柄酱滞嫁眉边丽蔡倔损对泞赘宰绽沁采郊龟耻翅硅篡终匣诫攫料谰糕其桶堂驱畦钢夕翁疥勇涣休瓣坏嘴银婆裁支辫炳注茶敖滁盾莉蓝冤而材奏蛹捌酌墓铜浇诫歉晓担朔拟嘴买袁溯凹撮钨尖脉曰弄蝇啮定胡鞭辖喇蛰节箩互薯帽耸崎降扼掷尽仲咖禾兹钒晤平佯蓄骡例理抗街涤焚毫绅坏铣啸孜绥福风力发电机晶闸管并网逆变器的研究摘要本课题以目前风力发电系统中较普遍使用的MW级风力发电机为研究对象，主要研究用晶闸管作为电力电子变换元件实现风力发电系统的单机并网方案和风电场集中并网方案。本文首先对并网型风力发电机组的工作原理、组成和分类进行了介绍。接着对用IGBT和SCR为主开关管逆变器在结构、性能以及优缺点进行了比较。然后对晶闸管有源逆变器的主电路以及各器件参数进行了设计和逆变器电磁兼容的设计，并介绍基于数字PID的控制系统的数字流程图。最后本文就晶闸管变流器的最大问题谐波和无功做出了详细的分析，并提出了谐波和无功的补偿办法。关键词：风力发电机，大功率变流，晶闸管，数字PID调节，谐波及无功补偿TheResearchofWindPowerGeneratorSCRGrid-connectedInverterABSTRACTInthispapertheMWgradewindturbinegeneratorcommonlyusedistheresearchobject,whichmainresearchthyristoraspowerelectronicconversionelementtoachievestand-aloneandnetworksolutionsforwindpowergenerationsystemandwindelectricfieldconcentrationandnetprograms.Firstly,grid-connectedwindturbineworkingprinciple,compositionandclassificationareintroduced.Secondly,theIGBTandtheSCRswitchinverterarecomparedinthestructure,properties,advantagesanddisadvantages.Andathyristorforactiveinvertermaincircuitandthedeviceparametersareproposed.Then,theinverterEMCisdesigned,andthecontrolsystemofdigitalchartbaseddigitalPIDisintroduced.Finallythisarticlemakesadetailedanalysisonthebiggestproblemofthyristorconverterinharmonicandreactivepower,andputsforwardtotheharmonicandreactivepowercompensation.KEYWORDS：windturbines，powerconverter，SCR，figuresPIDregulator,harmonicandreactivepowercompensation目录摘要..........................................................................................................................................IABSTRACT..................................................................................................................................II1绪论........................................................................................................................................11.1风力发电的应用现状及前景展望··························································11.1.1风力发电的现状·······································································11.1.2风力发电的前景展望································································11.2我国风电发展概况············································································21.3大型并网风电场接入电力系统的现状及主要问题····································31.3.1并网型风力发电机组································································31.3.2风电场与常规能源电厂主要区别·················································41.3.3并网存在的主要问题································································41.4风力发电机的并网方式······································································51.4.1直接并网················································································51.4.2双馈并网················································································51.4.3直驱并网················································································61.5直驱并网风机变流器的主要形式··························································61.5.1二极管整流+晶闸管有源逆变······················································71.5.2晶闸管整流+晶闸管有源逆变······················································71.6本章小结························································································72主电路设计............................................................................................................................92.1主电路原理·····················································································92.1.1主电路工作原理·······································································92.1.2基本数量关系·········································································102.1.3逆变颠覆及其防止···································································112.1.4换流重叠现象·········································································112.2控制系统概述·················································································122.3大功率晶闸管有源逆变器的硬件组成···················································132.3.1有源逆变器的系统构成····························································132.3.2三相晶闸管逆变触发·······························································142.4主电路设计····················································································152.4.1主变压器参数的计算·······························································152.4.2晶闸管参数的计算···································································152.4.3瞬