电流型双向多脉冲变流器  

Bi-directional Current Multiple Pulse Converter

作　　者：杨鸣强[1] 陈乾宏[1] 胡翔[1] 

机构地区：[1]南京航空航天大学自动化学院,南京210016

出　　处：《南京航空航天大学学报》2014年第1期159-164,共6页Journal of Nanjing University of Aeronautics & Astronautics

摘　　要：提出了两种电流型双向多脉冲变流器的拓扑结构,实现了传统多脉冲整流器能量的双向流动。当其运行于逆变器状态时,变流器等效为一个电流型多重化逆变器,相较于传统分立式电流型多重化逆变器,此变流器具有电源与磁性元件数量少、系统体积小等优点。以18脉冲双向变流器为例,详细介绍了其工作原理,求出了18脉冲变流器总谐波失真(Total harmonic distortion,THD)最小时,各电平作用角度,提出了一种脉宽调制方式以实现交直流侧电压电流调节。最后通过仿真与硬件实验验证了所提系统的可行性。Two bi-directional-current multi-pulse converter topologies are proposed, which can achieve a bi-directional flow of energy in the traditional multi-pulse rectifier. When it is operating in the inverter state, the converter is equivalent to a multiplex current type inverter. Compared with traditional discrete current-multiplex inverter, the inverter has less number of the power and magnetic elements, and smal- ler size of the system. In this paper, a bi-directional 18-pulse converter is taken for example, and its working principle is introducted and the effect of the level angle is obtained with the minimum total har- monic distortion （THD） of a 18-pulse converter. A pulse-width modulation to achieve the voltage and current regulation in the AC and DC sides is proposed. Finally, simulation and hardware experiments verify the feasibility of the proposed system.

关 键 词：电力电子与电力传动 双向多脉冲变流器 电流型多重化逆变器 脉宽调制 

分 类 号：TM461[电气工程—电器]