Robust Block Control of Fractional-order Systems via Nonlinear Sliding Mode Techniques
- Authors
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sajjad shoja majidabad
Shahrood University of Technology
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- Abstract
- This paper presents some novel types of fast convergence robust controllers for Caputo derivative based fractional-order nonlinear systems with model uncertainties and external disturbances. First, a new fractional-order model is derived from the original system based on the block transformation strategy. In the second step, two different nonlinear sliding manifolds are proposed to reach a short time convergence. Subsequently, appropriate nonlinear sliding mode control laws are developed to assure the robustness and fast converging behaviors. The stability of both controllers is achieved by the fractional-order stability theorems. Finally, two comprehensive numerical simulations are carried out to indicate the effectiveness of the suggested robust fractional-order controllers.
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- Published
- 2015-03-28
- Issue
- Vol. 17 No. 1 (2015)
- Section
- Articles