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ID:31984612
大小:13.10 MB
页数:102页
时间:2019-01-30
《基于载波的三电平逆变器中点电位控制技术的-研究》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、万方数据太原理工大学硕士研究生学位论文currentpolaritydetectioncircuit,laythefoundationforfollow—upsoftwareandhardwaredebugging.4)AsymmetryregularsamplingalgorithmofgeneratingthetriggerPWMwavetocontrolpowerswitchingdevicesisintroduced.Andrelatedprogramsarewritten,includingthemai
2、nprogramandtheinterruptsubroutine.Three—levelSPWMwavegenerationsubroutineandthemidpointpotentialcontrolsubroutinehavebeenconductedaperformanceevaluationofcodes.5)Buildanexperimentalplatforminthelab,anddebugtheprogram,atthesametime,phasevoltage,linevoltagePWMp
3、ulseexperimentalwaveformandPWMcontrolpulseexperimentalwaveformofswitchingdeviceshavebeenobtainedunderthephase—laminatedtriangularcarderPWMmodulation,andtheDC—sidemidpointpotentialexperimentalwaveformhasbeenobtainedunderclosed—loopcontrol,theseexperimentalwave
4、formsshowthatthealgorithmtogenerateSPWMwaveiscorrect,alsoshowthatthemidpointpotentialregulatorproposedtosomeextentinhibitedthemidpointpotentialfluctuationsintheDCside,experimentalresultsareconsistentwiththetheory.KEYWORDS:Three—levelInverter;TriangularCarderP
5、WMModulation;MidpointPotentialControl;DSPIV万方数据太原理工大学硕士研究生学位论文目录摘要⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯IABSTRACT.............................................................................................................................III第一章绪论⋯⋯⋯⋯
6、⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯11.1多电平逆变器应用现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯11.1.1三电平逆变器的分类⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯21.1.2TLDCI的基本工作原理⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯41.2综述几种常用PWM调制方法⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯71.2.1开关点预制PWM调制⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.71.2.2空间矢量PWM调制⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.81.2.3载波PW
7、M调制⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯101.2.4三角载波交叠与三角载波层叠PWM调制法之间的关系⋯⋯⋯⋯⋯⋯121.3概述目前常用的中点电位控制技术⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.151.3.1基于SPWM的注入零序电压分量调制法⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.161.3.2基于SVPWM的平衡因子调制法⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..161.4本文研究的主要内容⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.17第二章三角载波层叠PWM调制方法的研究⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯192.1
8、三角载波同相层叠PWM调制⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..192.2三角载波反相层叠PWM调制⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..262.3本章小结⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯31第三章TLDCI中点电位闭环控制的研究⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯333.1直流侧中点电位波动的原因⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯
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