全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

基于新型模块化多电平变换器的五电平PWM整流器

, PP. 34-38

Keywords: 模块化多电平变换器(MMC),PWM整流器,悬浮电容,电压平衡控制

Full-Text   Cite this paper   Add to My Lib

Abstract:

多电平PWM整流器具有功率因数可控、能量双向流动等优点,在电机高性能控制场合广受关注。而模块化多电平变换器(MMC)以结构模块化、不需要输入变压器以及易于扩展等优点,成为近年来研究的热点。本文针对一种新型模块化五电平PWM整流器展开研究,与传统MMC不同的是,新型MMC拓扑通过引入一个中间单元,使得输出相同电平数的情况下级联的单元数量更少。该五电平PWM整流控制系统可分为整流控制单元和PWM控制单元两部分,整流控制单元采用电压定向矢量控制实现母线电压稳定和单位输入功率因数控制;PWM控制单元采用载波层叠PWM方法,根据电容电压高低和电流方向选择合适的单元工作在充电或放电模式,以实现电容电压动态平衡控制。该控制方法可适用于任意单元级联和任意电平数。设计了一台三相五电平的实验样机并对上述控制方法进行了实验验证。

References

[1]  Rodriguez J R, Dixon J W, Espinoza J R, et al. PWM regenerative rectifiers: state of the art[J]. IEEE Transactions on Industrial Electronics, 2005, 52(1): 5-22.
[2]  Hatti N, Kondo Y, Akagi H. Five-level diode-clamped PWM converters connected back-to-back for motor drives[J]. IEEE Transactions on Industry Applications, 2008, 44(4): 1268-1276.
[3]  Cecati C, et al. Design of H-bridge multilevel active rectifier for traction systems[J]. IEEE Transactions on Industrial Applications, 2003, 39(5): 1541-1550.
[4]  Akagi H, Inoue S. Medium-voltage power conversion systems in the next generation[C]. Power Electronics and Motion Control Conference (IPEMC'06), 2006: 1-10.
[5]  Iman Eini H, Schanen J L, Farhangi S, et al. A modular strategy for control and voltage balancing of cascaded H-bridge rectifiers[J]. IEEE Transactions on Power Electronics, 2008, 23(5): 2428-2442.
[6]  Hagiwara M, Nishimura K, Akagi H. A medium- voltage motor drive with a modular multilevel PWM inverter[J]. IEEE Transactions on Power Electronics, 2010, 25(7): 1786-1799.
[7]  Rohner S, Bernet S, Hiller M, et al. Pulse width modulation scheme for the modular multilevel converter[C]. European Conference on Power Electronics and Applications (EPE), 2009: 1-10.
[8]  Wang Kui, Li Yongdong, Zheng Zedong. Voltage balancing control and experiments of a novel modular multilevel converter [C]. IEEE Energy Conversion Congress and Exposition (ECCE), 2010: 3691-3696.
[9]  Rohner S, Bernet S, Hiller M, et al. Modelling, simulation and analysis of a modular multilevel converter for medium voltage applications[C]. IEEE International Conference on Industrial Technology (ICIT), 2010: 775-782.
[10]  Hagiwara M, Akagi H. Control and experiment of pulsewidth-modulated modular multilevel converters[J]. IEEE Transactions on Power Electronics, 2009, 24(7): 1737-1746.
[11]  Wang Kui, Li Yongdong, Zheng Zedong. A new transformerless cascaded multilevel converter topology[C]. IEEE Energy Conversion Congress and Exposition (ECCE), 2009: 3124-3129.
[12]  Allebrod S, Hamerski R, Marquardt R. New transformerless, scalable odular multilevel converters for HVDC-transmission[C]. Power Electronics Specialist Conference, 2008: 174-179.
[13]  Glinka M, Marquardt R. A new AC/AC multilevel converter family[J]. IEEE Transactions on Industrial Electronics, 2005, 52(3): 662-669.
[14]  Lesnicar A, Marquardt R. A new modular voltage source inverter topology[C]. European Conference on Power Electronics and Applications (EPE), 2003.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133