Optimal Control of Self-Balancing Robot in the Presence of Uncertainties Based on Interval Analysis
Publish place: 27th Annual Conference of Mechanical Engineering
Publish Year: 1398
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ISME27_686
تاریخ نمایه سازی: 8 مرداد 1398
Abstract:
Since the main structure of a self-balancing robot is nonlinear and complicated, it has always some uncertainties in it. Using ordinary optimal control approaches for solving these kinds of problems make an incorrect solution for that. In this research, a newtechnique is proposed to solve the optimal control of a self-balancing robot in the presence of interval uncertainties. The proposed method is constructed with an interval extension of the second kind Chebyshev polynomials. Because of the system uncertainties, the controllability of the system is first analyzed. Afterward, an interval based version of the linear quadratic regulator (LQR) is introduced to solve the interval Ricatti equations and to obtain proper confidence interval. Final results are compared with Monte Carlo method and the results demonstrate the effectiveness of the proposed method.
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Authors
Navid Razmjooy
Department of Electrical and Control Engineering, Tafresh University, Tafresh, Iran
Roujin Mousavifard
Department of Mechanical Engineering, Amirkabir University of Technology
Mohammad Abolghasemzadeh
Department of Mechanical Engineering, Amirkabir University of Technology
Youness Alizadeh
Department of Mechanical Engineering, Amirkabir University of Technology