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ID:36426635
大小:8.23 MB
页数:130页
时间:2019-05-10
《混合式谐波与闪变综合抑制技术的研究》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、东南大学博士学位论文混合式谐波与闪变综合抑制技术的研究姓名:丁祖军申请学位级别:博士专业:电力电子与电力传动指导教师:胡敏强;郑建勇20090224东南大学博士学位论文电流源复合控制策略的控制性能最好,所以确定为混合式综合抑制装置推荐的控制策略。文章同时在对有源滤波装置的PwM控制策略进行总结的基础上,提出了一种基于电流滞环比较的优化空间电压矢量PWM控制策略。经过仿真分析,文章所提的控制策略能够达到较为理想的控制效果。第五章对混合式谐波与闪变综合抑制装置的试验样机的设计进行了研究。文章首先分析了无源滤波器的设计方法,并对有源滤波装置的器件选择进行了说明,在此基
2、础上提出了样机的整体设计方案。文章利用DSP和FPGA及其它外围芯片设计了混合式综合抑制装置的测控单元,对该测控单元的硬件电路和软件流程进行详细的说明。最后通过试验对文章所提出的主电路结构、检测算法和控制策略进行了验证。第六章对本文开展的工作进行总结,并对需进一步开展的工作以及研究方向进行了展望。【关键词】:混合式谐波与闪变综合抑制,功能切换判据,优化FBD法,电流源控制策略,基于滞环比较的空间矢量PWMAbstractHarmonicandflickersuppressionbecomesmoreimportantfieldwhichisinvolvedint
3、hepowerelectronicstechnology,powersystem,electricalautomationtechnologyandotherfields.Withfastdevelopmentofpowerelectronicstechnology,applicationsofallkindsofpowerelectronicsdevicesinmanyfieldshavebecomem01.eandmorewide.Thenon—linear,impactandimbalanceofloadsinsystemmakeharmonicandre
4、activepowersvaryfast,whichleadtovoltagefluctuationorflicker.Passivepowerfilterhastraditionallybeenusedtocompensateharmonicsandreactivepowergeneratedbylargeindustrialloads.Butthecompensationperformancemostlydependsonsystemparameters,andtherearesomedisadvantageshardtoovercome;whileacti
5、vepowerfilterCan’tbewidelyappliedbecauseofitshighcost.TheequipmentofHybridharmonicandflickerintegratedsuppression(EHHF)isanoveldevicetoeliminateharmonicsandsuppressvoltagefluctuationdynamicallythoughtheharmonicsorreactivepowersvaryinamplitudesandfrequencies.ItgetsOVerthedisadvantageo
6、fthepassivefilterandthyristorswitchedcapacitorwhichisusedconventionally.Theelectronicsystemisexcellentwhichhasseveralfunctions.Thepapercontainssixchapters.Chapteroneintroducessignificanceandmainlycontentsofthetopic.Firstly,thereasonofharmonicandflickerisintroduced,andtheclassifiedsta
7、ndardandtheharmandthetreatingmeasurementoftheharmonicandflickeraresummarizedinthischapter.Then,thepaperanalysesthistopicresearch’Sbackgroundandtheresearchsignificance,simultaneouslyintroducessomemethodswhichareconventionallyusedtOeliminateharmonicsandsuppressvoltagefluctuation.Itisal
8、sopresentedt
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