提升给煤机低电压穿越能力的研究及应用  

Improvement on LVRT Capability of Coal Feeder and its Application

作　　者：余伟权[1] 马智行 傅富强[2] 周佳洁[2] 王琳[2] 王曙光[3] 

机构地区：[1]广东省粤电集团有限公司珠海发电厂,珠海519050 [2]上海发电设备成套设计研究院,上海200240 [3]江苏新海发电有限公司,连云港222023

出　　处：《发电设备》2014年第1期49-51,共3页Power Equipment

摘　　要：分析了低电压故障时对火电厂给煤机的影响及隐患,介绍了提升给煤机低电压穿越能力的方法,给出了一个在不加装低电压穿越装置的前提下达到有效提升给煤机低电压穿越能力的改造实例。Hidden troubles caused by low-voltage faults to coal feeder in thermal power plant were analyzed, the method of improving the low-voltage ride through （LVRT） capability of coal feeder was introduced, and a retrofit example was presented, in which the purpose of improving the LVRT capability was achieved under the premise that no LVRT device was added.

关 键 词：给煤机 变频器 低电压穿越 

分 类 号：TK223.24[动力工程及工程热物理—动力机械及工程]