Fuzzy logic and gradient descent-based optimal adaptive robust controller with inverted pendulum verification

S. Hadipour Lakmesari, M.J. Mahmoodabadi and M. Yousef Ibrahim

Chaos, Solitons & Fractals, 2021, vol. 151, issue C

Abstract: This paper develops an adaptive robust combination of feedback linearization (FL) and sliding mode controller (SMC) based on fuzzy rules and gradient descent laws. The new suggested control algorithm is tested to stabilize a fourth-order under-actuated nonlinear inverted pendulum system. More precisely, the reliable feedback linearization approach and the robust SMC controller are combined to design a stable control effort. In order to enhance the performance of the suggested controller, an adaptation technique as long as fuzzy rules are applied to update the control gains and the boundary layer parameter. Then, a novel evolutionary algorithm termed multi-objective ant lion optimizer (MOALO) is implemented to determine the control coefficients. The analysis and results conducted on the inverted pendulum system demonstrate the desired performance of the proposed control scheme by providing an optimal smooth control input, suitable tracking performance, and proper time responses.

Keywords: Sliding mode control; Feedback linearization; Fuzzy rules; Gradient descent; Inverted pendulum system; Multi-objective ant lion optimizer (search for similar items in EconPapers)
Date: 2021
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Citations: View citations in EconPapers (4)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:151:y:2021:i:c:s0960077921006111

DOI: 10.1016/j.chaos.2021.111257

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