井下梭车行走用交流变频调速装置过电压产生原因及预防  

Reasons and Prevent Methods of Over-Voltage of AC Frequency Converter Speed Drive Device for Shuttle Car

作　　者：高旭彬 

机构地区：[1]中国煤炭科工集团太原研究院,山西太原030006

出　　处：《煤矿机电》2013年第4期80-82,共3页Colliery Mechanical & Electrical Technology

摘　　要：分析驱动梭车行走的变频调速装置在煤矿井下使用时产生过电压的原因及危害,给出了防止过电压的方法,阐述了其工作原理和优缺点,其中四象限变频器是通过有源逆变器装置将再生能量回馈到交流电网,有效预防变频器过电压保护的频繁发生,保证了梭车在井下的正常使用。Analyzes the reasons and the hazards of over voltage that generated from frequency converter device when the shuttle car drives use at underground mine. Gives the methods of preventing over-voltage. Introduces the several working principles and both advantages and disadvantages. The four quadrant takes the renewable energy back to AC grid through active inverter device, which effectively prevent the frequency happen of frequency converter＇ s over voltage protection and ensures the normal use of shuttle car at underground mine.

关 键 词：梭车 变频器 过电压 能量回馈 

分 类 号：TN773[电子电信—电路与系统]