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《基于功率闭环控制与PSO算法的全局MPPT方法.pdf》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、第34卷第28期中国电机工程学报Vo1.34No.28Oct.5,20142014年10月5日ProceedingsoftheCSEE~2014Chin.Soc.forElec.Eng.4809DOh10.13334~.0258.8013.pcsee.2014.28.008文章编号:0258.8013(2014)28-4809—08中图分类号:TM615基于功率闭环控制与PSO算法的全局MPPT方法李善寿,张兴,张鸿恺2,赵为,倪华(1.合肥工业大学电气工程与自动化学院,安徽省合肥市230009;2.安徽建筑大学智能建筑重点实验室,安徽省合肥市
2、230601;3.阳光电源股份有限公司,安徽省合肥市230088)GlobalMPPTMethodBasedonPowerClosed-loopControlandPSOAlgorithmLIShanshou,ZHANGXing,ZHANGHongkai,ZHAOWei3,NIHua(1.SchoolofElectricalEngineeringandAutomation,HeFeiUniversityofTechnology,Hefei230009,AnhuiProvince,China;2.KeyLaboratoryofIntelligen
3、tBuilding,AnhuiJIANZHUUniversity,Hefei230601,AnhuiProvince,China;3.StmgrowPowerSupplyCo.,Ltd.,Hefei230088,AnhuiProvince,China)ABSTRACT:Basedontheanalysisofexistingmulti—peaks现全局最大功率点的定位,利用功率闭环控制在P.U曲线上maximumpowerpointtracking(MPPT)methods,adynamic的局部不稳定现象实现尸.曲线的快速全局扫描,克服了峰M
4、PPTstrategywasproposedbasedonthepowerclosed-loop值点分布及算法参数取值对MPPT动态过程的影响。同时采contro1.Thestrategylocatedtheglobalmaximumpowerpoint用电压截止控制克服了功率闭环控制对系统整体稳定性的影(GMPP)bythepowerclosed—loopcontrolmethod,and响。采用基于粒子群(particleswarmoptimization,PSO)算法achievedtheglobalscanningofP-Ucurves
5、makinguseofthe的变步长跟踪策略消除了最大功率点跟踪的稳态功率震荡localinstabilityphenomenonofpowerclosed—loopcontrolon问题。最后,通过仿真与实验验证该方法的可行性和有效性,theP-Ucurves.Thus,theimpactofpeakpointsdistribution结果表明,该方法不依赖光伏阵列的已知信息,便可实现静andparametersselectionontheMPPTdynamicprocesswas态和动态环境下全局最大功率点跟踪,提高多峰值最大功率overc
6、ame.Atthesametime,avoltageblockingmethodwas点跟踪的动态速度和稳态跟踪精度。adoptedtoovercometheimpactofpowerclosed—-loopcontrol关键词:光伏阵列;全局最大功率点跟踪;功率闭环控制:onthesystemstability.Avariablestepsizetrackingstrategybasedonparticleswarmoptimization(pso)algorithmwas粒子群算法;多峰值特性usedtoeliminatethestatic
7、poweroscillationofMPPT.The0引言feasibilityandefectivenessofthemethodisverifiedbysimulationsandexperiments,andresultsshowthatthemethod实现全局最大功率点跟踪fglobalmaximumcalltracktheGMPPunderstaticanddynamicenvironmentpowerpointtracking,GMPPT)是提高光伏发电系统withoutanyknowninformation,whichcanim
8、provetracking总体效率的基本措施之一【l-2]。理想情况下,光伏阵precisionofthemulti-peakGMPPundersta
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