Design and Application of Dual Redundant Electronic Control System for Mine Hoists
During the operation of mine hoist,the electric control system continuously does work,and with the increase of operating height and power,the electric control system generates a large amount of heat and has a high failure rate,which results in the unstable operation of mine hoist and affectss the safe operation of the coal mine.To address this problem,a three-dielectric flat four-quadrant inverter is used for the inverter control of the system,and a dual-redundant electronic control system is designed,which can realise independent control and fast switching of the mine hoist through the synergy of the two systems.The application test of the dual redundant electric control cabinet system can achieve better speed following characteristics of the mine hoist,while the output current obtained is sinusoidal wave distribution,which reduces the impact effect of harmonics and improves the safety and stability of the hoist.
NETL
NSTL
万方数据
