1、37 4 大 连 海 事 大 学 学 报 Vol.37 No.42011 M11Journal of Dalian Maritime University Nov., 2011cI|:1006-7736(2011)04-0064-03BSVPWM 71 ZEX邱 楠,樊印海(v Z Yv , av 116026)K1:针对七电平级联式中压逆变器,在传统60b坐标系SVP-WM方法基础上,提出一种改进型冗余开关状态筛选法.采用表格法对开关状态进行选择,用六段式方法生成PWM驱动信号,实现对逆变器中多个功率开关器件的驱动控制.实验结果验证了该方案的正确性和有效性.1oM:多电平空间矢量调制(SVP
2、WM);冗余开关筛选法;多电平逆变器;六段式PWM方法ms |:TM433 DS :AA modified SVPWM redundant switchingstates filtration methodologyQIU Nan,FAN Yinhai(Marine Engineering College,DalianMaritimeUniversity,Dalian116026,China )Abstract:Basedontraditional60b coordinateSVPWM methodology,aredundant statesfiltrationmodifiedmethodw
3、as proposed for sevenlevelcascadedmediumvoltagesystem. Aregulatedtablewasusedtofilter the redundant states, and six-sect PWM method was used togenerate the PWMwaveforms inorderto controlthe power devicesinmultilevelinverter. Experimental results validate the possibility andefficiency oftheproposedme
4、thod.Key words: multilevel space vector pulse width modulation(SVP-WM); redundant states filtration; multilevel inverter;six-sect PWM0 引 言 IM v q . W,.1 H B M bW O e EJ. bv:1 S,2003,43(3):366- 372.4CELANOVICN,BOROYEVICH D. A fast space vectormodula-tionalgorithm for multilevel three-phase convertersJ.Proc ofIEEEIAS, 1999,2: 1173- 1177.5MASSOUDA M,FINNEY S J,WILLIAMSBW. Systematic an-alytica-lbased generalized algorithm for multilevel space vectormodulationwithafixed executiontimeJ. IET Power Electron,2008,1:175- 193.6 n. PMSM e . w“dD.v :v Z Yv,2011.66 大连海事大学学报 第37卷
