电气传动2016，Vol.46Issue(10)：57-62,6.DOI:10.19457/j.1001-2095.20161012
火电厂风机系统低电压穿越解决方案
Solution of Low Voltage Ride Through of Fan System in Thermal Power Plant
摘要
Abstract
In order to realize flying restart,a new speed estimation method based on stator residual magnetism voltage or the vector decomposition of stator current determined by power losing time was proposed,which aimed at high-voltage inverter using speed sensorless V/f control in thermal power plant fan system. Then,the whole system was simulated and analyzed by Matlab. Study shows that this method can track the fan speed precisely in 1~2 s and make the speed return to normal fast. Low voltage ride through is achieved and thermal power unit downtime or widespread power outages caused by the converter low voltage protection is prevented.关键词
风机系统/高压变频器/无速度传感器/转速跟踪再启动/低电压穿越Key words
fan system/high-voltage frequency converter/speed sensorless/flying restart/low voltage ride through分类
信息技术与安全科学引用本文复制引用
姚新阳,黄学良,王正齐,顾文,蒋琛,唐一铭..火电厂风机系统低电压穿越解决方案[J].电气传动,2016,46(10):57-62,6.基金项目
江苏省电力公司科技项目 （）
