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1、控制与应用技术null EMC A 2009, 36 ( 8)SVPWM)IMOed孙醒涛, null 吴凤江(哈尔滨工业大学电气工程系,黑龙江哈尔滨null 150001)null nullKnull1:|bWOZE.dMMTbWz( SPWM )ZEM,i),4B-OeZE,i)IMkb4bWOzeYza?71qaLC+,d_kTV,dza?b1oM:);bWO;Oems|: TM464nullDSM: AnullcI|: 1673-6540( 2009) 08-0024-05ResearchofVectorControlSystem ofCascadedMultilevelInverte
2、rsBased on SVPWMSUN X ing-tao, null WU Feng-jiang(Department ofElectricalEngineering, Harbin Institute ofTechnology, Harbin 150001, China)null null Abstract: A new space vectormodulation combinedw ith phase-shifted SPWM approach is utilized to cascadedmultilevel inverters. And a feed forward voltage
3、 decoupling vector controlmethod is presented. The proposed ap-proach has some advantages, such as good dynamic regulation performance, balance of sw itching components power,easy realization. It is verified in a three-cell cascaded laboratory inverters system. Simulations and experimental re-sults
4、indicate the system has good dynam ic and static state performance.Keywords: multilevelcascaded; space vector; vector control0null 引null 言null nullIMMX,GTOaIGBT#IECTaIGCTeqC,#3|)( DSP)aFPGA?3e/#,IM?Zb,-V|IMs=53a3)1bMM1,)IMVYV)q71q1ZE,LC;qV171q,71r71qVr4,vvh71adv/dtoc 2bN,)IM1-+,(avZaLLC71/b+,)IMz?Z-
5、b.dv /feZT)IM,MMTobWz( SPWM )/,Ee,LC+b-,PWM/Vsv,MMTSPWM/bWOz( SVPWM )/bSVPWM/|IMjB8,ydBUSM$,il4,e,LLCe,ierTzaq,dW 3bSVPWM/dR,9F,V3,71O9F,/EVnull24null2009, 36 ( 8) 控制与应用技术null EMC A,4SVPWMeE,4L=d4-5bkoMMSPWMZESVPWMZE,4BMMTbWOZE,iOeM,4BMMTSVPWM)IM-OeZE,iYV_kd?b1null 级联型逆变器及移相式三角波SPWM方法null null)IMq)F
6、(nm1)bm1null)IMnull nullMNM)qM1:N = 2M + 1 ( 1)null nullMMToSPWMEH,vPWM(BI?o1FMMQo13, Nv1NFo, NFoWMnull=null/NbM?oM120null,NFobMqSPWMo4Np,FSPWMobm2)IMoMMTSPWMmbm2null)IMSPWMmnull nullZEIMo,1ro,$oIMbZEOe#e?eH,iHY,71qqbsBraH7OVMMoSPWMMZE$%5b2null 级联型逆变器的矢量移相式 SVP-WM方法2. 1nullBIMSVPWMZE)IMBm3Ubm3=MB,sY
7、A, B, CM,=MB3: - 1, 0, 1,yNV1AIMbV1BIM71Vbm3nullB)IMV1null71A1X A2X B1X B2X1(P) E71170(O) 071711717- 1(N) - E1771null null: X12; 0271Fnull nullM27,6O, 6O, 12O3,Ob6O|bWOms6u,u$OOs4lbm4IMbWOmbm4nullIMbWOmnull nullLCbWOe,n51IOu,l,N%1Oi9Tnull25null控制与应用技术null EMC A 2009, 36 ( 8)HWbm5U,IusbIO,IOIu,8A, B, C, Dlu,/?5V:?51,Vre-fnullnullVnull;?52, Vref-null - Vref-null / 3nullVnull;?53,Vre-fnull+ Vre-fnull / 3null Vnullbm5null IuIOnull nullz,IOu,O#71Qbo;,O3N/5: ( 1)M
