防止变频器电压跌落停机的电源方案  

Solutions for keeping frequency converter running from voltage sag

作　　者：韩其国[1] 陈林[2] 

机构地区：[1]杭州电子科技大学自动化学院,浙江杭州310018 [2]浙江大学电气工程学院,浙江杭州310027

出　　处：《电源技术》2012年第11期1735-1738,共4页Chinese Journal of Power Sources

基　　金：国家科技支撑计划项目(2009BAB47B00)

摘　　要：针对电网电压跌落导致的变频器停机情况,提出了对变频器进行瞬时直流供电的解决方案,主要是直流环节配置蓄电池和直流环节并联大电容这两种解决方案,并对这两种方案进行了MATLAB建模和仿真。课题以ABB ACS800系列的变频器作为研究对象,其结果对实际工程具有一定的参考价值。The voltage sags which caused frequency converter to halt were analyzed,and then two specific solutions were proposed,namely,storage batteries and parallel capacitance in DC link,to supply instantaneous DC power for the frequency converter.The MATLAB/Simulink for the solutions was established,and the frequency inverters of ABB ACS800 series were studied.The simulation results could be a reference for the practical project.

关 键 词：变频器 电压跌落 直流供电 MATLAB仿真 

分 类 号：TM461[电气工程—电器]