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ID:37367206
大小:1.72 MB
页数:74页
时间:2019-05-22
《基于DSP的三相应急电源系统研究》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、西南交通大学研究生学位论文基于DSP的三相应急电源系统研究年级二oo四级姓名王麦海申请学位级别工学硕士专业指导教师电力电子与电力传动蒋启龙副教授二Oo七年五月西南交通大学硕士研究生学位论文第
2、I页AbstractThethreephaseemergencypowersupplysystembasedonDSParestudiedandanalyzeddeeplyinthethesis.Aftersurveyingandstudyingthedomesticandinternationalresearchcurrentsituati
3、ononswitchingpowersupplyandapplicationtechnologyandcarrying01"1systematicanalysisandsynthesizetothepresentdomesticandinternationalemergencypowersupply,wetakeoutspecificationandgeneralprojcottomeettheperformancedemandthatfullnumericalcontrolandintelligent,includingthem
4、aincircuitofthechargerandtheinverter,andcalculatetheparameterofpowertransformer,andchoosethetypesofIGBT.Then,afterthespecialityofleadacidaccumulatorwasstudiedindeepandanalyzed,thecontrolschemeofchargeandrechargewasdesignedandtheprinciplewasexpatiated111eoutputofinvert
5、erandcontrolschemeisthestressofthispaper.firstlythePWMtechnologywasdiscussedandtheSVPWMtechnologythathasbeenappliedinthefieldofmotorcontrolsystem,weadoptthisSVPWMtechnologyinouremergencypowersupplytogetherwiththePIregulator。Itistocontrolthespacevoltagevectorinvariable
6、aptitudeindaxleanddaxleinfact,SOthethreephaseSP、酮Moutputwasgetfinally,AfterthisanalysisthesimulationmodulewasestablishedbasedOntheMatlab/simulink,andthesimulationresultsprovedthatithasfinebalanceddegreeofwaveformofthreephasevoltageandlowwaveformdistorteddegreebyadopte
7、dthismethod,evenundertheserousasymmetricthreephaseload.Onthebasisoftheoryanalysisandemulation,thehardwarecircuitandsoftwaredesignoftheemergencypowersupplycontrolsystembasedonDSPisintroducedindetailfinally.Andthehardwarecircuitandsoftwareofthecontrolsystemistested.砀ere
8、sultsofexperimentdemonstratetheaccuracyofsoftwaredesignofthecontrolsystem.Keywords:EPS,DSP,INVERTER,SVPWM西南交通大学硕士研究生学位论文第1页第1章绪论本章首先简要介绍应急电源EPS的特点,在此基础上将EPS与柴油发电机组和UPS进行比较,对比其优缺点,由于EPS是逆变电源的一种,所以最后从逆变电源的角度介绍了EPS及其控制的发展概况及趋势。1.1应急电源概述随着工业和科学技术的快速发展,社会生活越来越现代化、信息化,对电的依赖
9、以及对供电质量的要求也越来越高。突然的断电必然会给人们的正常生活秩序和社会正常运转造成破坏,特别是对于一级负荷中特别重要的负荷,一旦事故发生中断供电,必将造成重大的事故和经济损失。然而,电力故障突发性强,断电在所难免,这就需要在市电供应中断时,提供
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