Control of Quadruple Tank Process Using an Adaptive Fractional-Order Sliding Mode Controller

In this paper, an adaptive fractional-order sliding mode controller is constructed to control a quadruple tank process. The pump voltages are considered as the inputs, while the water levels in two tanks are considered as the outputs. Now, a fractional-order sliding mode controller with a non-integer sliding surface is designed. To increase the robustness to the pump coefficients, an adaptive version of the mentioned controller is designed using an appropriate Lyapunov based adaptation mechanism. This adaptation mechanism is selected such that the water levels in the two tanks converge to their corresponding desired values. The simulation results are provided to demonstrate the robust performance of the proposed controller.

Automated summary

An adaptive fractional-order sliding mode controller is constructed for a quadruple tank process, considering pump voltages as inputs and water levels as outputs. A non-integer sliding surface and an adaptive mechanism based on Lyapunov are designed to enhance robustness to pump coefficients, ensuring water levels converge to desired values. Simulation results demonstrate the robust performance of the proposed controller.