有源电力滤波器中双向快速充放电DC-DC变换器设计及仿真  

Simulation and Design of Fast Charging and Discharging of Bi-directional DC-DC Converter for the Active Power Filter

作　　者：龙佼佼[1] 吴景林[1] 刘小宁[1] 陈思明[1] 陈滋健[1] 

机构地区：[1]中国科学院强磁场科学中心,合肥230031

出　　处：《高电压技术》2013年第7期1792-1797,共6页High Voltage Engineering

基　　金：国家自然科学基金(50977086)~~

摘　　要：为了满足强磁场装置电源供电极低电流纹波的要求,采用了并联有源电力滤波器。首先简述了并联有源电力滤波器的工作原理,并设计了一种新型的双向DC-DC变换器取代了以往并联有源电力滤波器中使用的水冷电阻,实现了对并联有源电力滤波器中的电容器进行快速充电与快速放电,从而降低了能量损耗。然后详细分析了变换器快速充电与快速放电的工作过程,并给出了具体的设计参数。最后进行了仿真验证,通过仿真波形可以看出,该双向DC-DC变换器可以正常工作,能够顺利实现能量的双向流通,满足并联电力有源电力滤波器的设计要求。Parallel active power filter（PAPF） is adopted in order to meet the requirements of extreme low current ripple for power supply of high magnetic field devices.Following a brief introduction of the working principle of PAPF,we designed a novel bi-directional DC-DC converter to replace water cooled resistor normally adopted in former PAPF designs.The converter realized the fast charging and discharging of capacitors in PAPF,so the energy loss was reduced greatly.Moreover,the fast charging and discharging process of a bi-directional DC-DC converter was analyzed in detail,and specific design parameters of the converter were given.Finally,the design was simulated and verified through simulations.The simulative waveforms show that the proposed bi-directional DC-DC converter can work normally while realizing bi-directional flow of energy,which meets the design requirements of PAPF.

关 键 词：强磁场 有源电力滤波器 APF 双向 DC-DC变换器 快速充电 快速放电 

分 类 号：TM46[电气工程—电器] TN713.8[电子电信—电路与系统]