发电厂锅炉给粉机变频器低电压穿越技术的应用  

Application of Low Voltage Ride-through Technology of Frequency Converter for Boiler Powder Feeder in Power Plant

作　　者：于哲 张月 YU Zhe;ZHANG Yue(The Energy Management and Control Center of Ansteel;Iron and Steel Research Institute of Ansteel,Anshan,Liaoning 114000,China)

机构地区：[1]鞍钢股份能源管控中心 [2]鞍钢钢铁研究院,辽宁鞍山114000

出　　处：《冶金动力》2021年第5期1-3,11,共4页Metallurgical Power

摘　　要：针对发电厂给粉机变频器受电网电压波动影响而导致发电机组停运的问题,探讨了低电压穿越系统的改造实施方案,根据电厂的实际生产情况,在保证改造方案经济性的同时,彻底解决了给粉机变频器低电压保护跳闸导致非计划停机停炉的问题,提高了发电厂经济效益。In view of the shutdown of the generator unit caused by the power grid voltage fluctuation of the frequency converter of the powder feeder in the power plant,a transformation implementation program of the low-voltage ride through system is discussed.According to the actual production situation of the power plant,the problem of unplanned shutdown caused by low-voltage protection trip of the frequency converter of the powder feeder was completely solved while ensuring the economy of the transformation scheme,which improved the economic benefit of the power plant.

关 键 词：低电压穿越 给粉机 变频器 

分 类 号：TM774[电气工程—电力系统及自动化]