A VECTOR CONTROL SYSTEM OF MINE LOCAL VENTILATOR BASED ON POPOV HYPER-STABILITY THEORY

摘要

A novel speed sensor-less vector control system for the mining local ventilator is presented in order to drain the gas out immediately for safety production in the paper. The identification speed signal is estimated based on Popov hyper-stability theory to real-time control the local ventilator in mining workspace under coal well. The theoretical analysis has indicated that the speed identification algorithm is stability and astringent, and the simulation results show the utility of the system.