利德华福中压变频器在双电机拖动矿井提升机上的应用

Application of Leader and Harvest＇s Medium Voltage Frequency Converters in the Mine Hoist Driven by Dual- motor

对矿井提升机实施变频改造是提高其生产效率、装备水平、可靠性和安全性的主要手段。本文对中压变频调速系统的原理和结构进行了分析，结合龙田煤业提升机变频改造项目，介绍了HARSVERT—FVA系列能量回馈型中压变频器在矿井提升机双机拖动系统中的应用。

To implement the renovatiml by frequency conversion for the mine hoist is the main measure of improving its produc- tion efficiency, equipped level, reliability and security. This paper analyzes the principle and composition of the medium voltage fre- quency conversion speed control system and introduces the application of HARSVERT-FVA series energy feedback medium vohage, frequency ennverters in the dual- motor driving system of the mine hoist by combining with the renovation project of frequency con- version for the hoister in Longtian Coal Mining Company.