辅机变频器低电压穿越技术研究

Research on Low Voltage Ride Through of Auxiliary Frequency Converter

发电企业和设计单位在火电机组辅机的设计时越来越倾向于采取变频器技术,但多数辅机变频器低电压穿越能力差,给电网安全稳定运行造成极大的威胁。文章针对目前辅机变频器低电压穿越能力不足的问题展开研究,并提出解决方案。

Power generation enterprises and design units are more and more inclined to adopt frequency converter technology in the design of auxiliary units of thermal power units.However,most of the auxiliary converters have the poor low voltage ride through ability which poses a great threat to the safe and stable operation of the power grid.The problem of insufficient low voltage ride-through ability of auxiliary frequency converter was studied and solutions were proposed.