Sliding-Mode Control Technology to Micro-differential Pressure in Converter Mouth

Taking the status of OG system and the micro-differential pressure control system which is nonlinear, time-varying, uncertainty and larger disturbance into account, we apply sliding mode variable structure control strategy with strong robustness in order to overcome the uncertainty and to enhance the anti-jamming capability. For the chattering problem in sliding control algorithm, we investigate the method of sliding mode controller with disturbance observer. The result of simulation shows that the sliding model variable structure control is robust, and can enhance dynamic quality of the control system effectively.