针对串电阻调速方式固定绞车调速性能差、启动不平稳、设备冲击大、能耗大等问题,通过研究四象限高压变频技术,解决上述问题并实现绞车自动化控制。研究绞车工频控制与四象限高压变频系统的相互切换控制技术途径,实现绞车工频控制与四象限高压变频系统的相互切换控制,提高绞车安全运行系数,达到节能降耗效果。 Aiming at the problems of poor speed regulation performance, unstable start-up, large equipment impact and high energy consumption, etc., the four-quadrant high-voltage frequency conversion technology is adopted to solve the above problems and to achieve automatic winch control. Research on mutual control technology between winch power frequency control and four-quadrant high-voltage frequency conversion system to realize mutual switching control between winch power frequency control and four-quadrant high-voltage frequency conversion system and improve safe operation coefficient of winch to save energy and reduce consumption.