WANG Huan, WANG Si-ming. Fractional-Order Sliding Mode Control Based on Disturbance Observer[J]. Electronics Optics & Control, 2015, 22(5): 89
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For a class of system with matched uncertainties, a fractional order sliding mode controller based on fractional-order theory was adopted to weaken the chattering in the system better while keeping the control precision.The disturbance observer was adopted to estimate the uncertainties in the system.Finally, the system stability was analyzed.It can be seen through simulation that the method adopted can estimate the uncertainties of system effectively and reduce the system chattering greatly.