SVPWM Control of Three Level Inverter for Traction Drive in EMUs
-
摘要: 提出了适用于高速动车组牵引传动中三电平逆变器控制的空间矢量脉宽调制(SVPWM)控制策略.动车组起动和低速阶段要求转矩脉动小,采用恒定最大开关频率控制的三电平异步调制策略;高速时,要求逆变器在低开关频率下的良好谐波性能,在中高速和高速分别采用4脉冲和2脉冲同步调制策略.仿真结果与实测动车组牵引电机电压波形进行了对比,证实了SVPWM控制策略的有效性.Abstract: Space vector pulse-width modulation(SVPWM) control strategies were proposed for three level inverters of traction drives in high-speed EMUs(electrical multiple units).A constant-maximum-switching-frequency asynchronous modulation control strategy is applied during starting and low-speed periods of the EMU’s motor because low torque ripples are required during these periods.At high-speed,because low-switching-frequency and low-harmonic component are required,a variable-switching-frequency synchronous modulation control strategy is used with a 4-pulse modulation at mid-high speed and a 2-pulse modulation at top-high speed respectively.The effectiveness of the proposed strategies were verified by comparing the simulation voltage waveforms with the measured data of the EMU’s motor.
-
陈伯时.电力拖动自动控制系统-运动控制系统[M].北京:机械工业出版社,2005:175.182.[2] SEO JH,CHOI CH,HYUND S.Anew simplified space-vector PWM method for three-level inverters[J].IEEE Trans.on Power Electries,2001,16(4):545-550.[3] 冯江华.多模式电压空间矢量脉宽调制的理论分析及微机实现[J].机车电传动,1996(4):7-11.FENG Jianghua.Theoretical analysis and realization on microcomputer of multi-mode voltage vector PWM[J].Electric Drive for Locomotive,1996(4):7-11.[4] 冯江华.用8098单片机实现电压空间矢量脉宽调制[J].机车电传动,1995(4):13-18.FENG Jianghua.Realization of pulse width modulation based on voltage space vector by 8098 single chip processor[J].Electric Drive for Locomotive,1995(4):13-18.[5] 程泓生.8098单片机实现电压空间矢量脉宽调制变频调速控制[J].机车电传动,1994(5):32-38.CHENG Hongsheng.Realization of frequency control of motor speed via pulse width modulator based on voltage space vector on 8098 single chip processor[J].Electric Drive for Locomotive,1994(5):32-38.[6] 陈效国.三点式逆变器在磁通轨迹控制下主电路的分析[J].机车电传动,1995(6):13-19.CHEN Xiaoguo.Main circuit analysis for 3-level inverter under flux trajectory control[J].Electric Drive for Locomotive,1995(6):13-19.[7] MONDAL S K,PINTO J O P,BOSE B K.A neural-network-based space-vector PWM controller for a three-level voltage-fed inverter induction motor drive[J].IEEE Trans.on Industry Application,2002,38(3):660-669.[8] BEIG A R,NARAYANAN G,RANGANNTHAN V T.Modified SVPWM algorithm for three level VSI with synchronized and symmetrical waveforms[J].IEEE Trans.on Industrial Electronics,2007,54(1):486-494.[9] NARAYANAN G,RANGANATHAN V T.Synchronised PWM strategies based on space vector approach.Part 1:principles of waveform generation[C]//IEE Proceedings of Electric Power Applications,London:Michael Faraday House,1999,146(3):267-275.[10] BOSE B K.现代电力电子学与交流传动[M].北京:机械工业出版社,2003:224-229. -
点击查看大图
计量
- 文章访问数: 1486
- HTML全文浏览量: 88
- PDF下载量: 469
- 被引次数: 0
下载: