An Improved Sliding Mode Control Method and its Application

With the shaftless driving technology used in the packaging industry,servo motor control has become increasingly demanding. Beginning with the reasons of chattering, this article proposes a new sliding mode reaching law,adding a power attenuation term in front of the variable speed item,and then affects the shaftless gravure package printing chromatography system with PMSM as the actuator, improved servo motor speed range and efficency of the shaftless driving system.At last,the simulation results indicate the effectiveness of the proposed approach.