首页 | 本学科首页   官方微博 | 高级检索  
     

零电压零电流开关PWM复合式全桥三电平变换器
引用本文:阮新波,李斌.零电压零电流开关PWM复合式全桥三电平变换器[J].中国电机工程学报,2003,23(4):9-14.
作者姓名:阮新波  李斌
作者单位:南京航空航天大学,江苏,南京,210016
基金项目:国家自然科学基金项目(50177013)
摘    要:该文提出一种零电压零电流开关PWM复合式全桥三电平变换器,该变换器的一个桥臂为三电平桥臂,其开关管的电压应力为输入电压的一半,可在很宽的负载范围内实现零电压开关,可以选用场效应管(MOSFET);另一个桥臂为两电平桥臂,其开关管电压应力为输入电压,可在很宽的负载范围内实现零电流开关,可以选用IGBT。该变换器的输出整流电压交流分量很小,可以减小输出滤波器,改善变换器的动态特性。其输入电流脉动很小,可以减小输入滤波器。该文详细分析该变换器的工作原理,讨论参数设计,并且给出实验结果。

关 键 词:复合式全桥三电平变换器  零电压开关  PWM  零电流开关  变换器
文章编号:0258-8013(2003)04-0009-06

ZERO-VOLTAGE AND ZERO-CURRENT-SWITCHING PWM HYBRID FULL-BRIDGE THREE-LEVEL CONVERTER
RUAN Xin-bo,LI Bin.ZERO-VOLTAGE AND ZERO-CURRENT-SWITCHING PWM HYBRID FULL-BRIDGE THREE-LEVEL CONVERTER[J].Proceedings of the CSEE,2003,23(4):9-14.
Authors:RUAN Xin-bo  LI Bin
Abstract:This paper proposes a zero-voltage and zero-current-switching PWM hybrid full-bridge three-level converter (ZVZCS PWM H-FB TL converter), which has a three-level leg and a two-level leg. The voltage stress of the switches of the three-level leg is half of the input voltage, and the switches can realize ZVS in a wide load range, so MOSFET can be adopted; The voltage stress of the switches of the two-level leg is the input voltage, and the switches can realize ZCS in a wide load range, so IGBT can be adopted. The secondary rectified voltage is a three-level waveform having lower high-frequency content compared with that of the traditional full-bridge converters, which can reduce the output filter, and as a result, the dynamic response of the converter is improved. The input filter can also be significantly reduced due to the little ripple of the input current. The operation principle of the proposed converter is analyzed and verified by the experimental results.
Keywords:Three-level converter  Full-bridge  Zero- voltage-switching  Zero-current-switching
本文献已被 CNKI 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号