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Preliminary communication
https://doi.org/10.32985/ijeces.10.2.3

A Comparative Study of LQR and Integral Sliding Mode Control Strategies for Position Tracking Control of Robotic Manipulators

Nor Mohd Haziq Norsahperi   ORCID icon orcid.org/0000-0001-7523-1821 ; Universiti Putra Malaysia Department of Electrical and Electronics Engineering, Faculty of Electrical Engineering
Kumeresan A. Danapalasingam   ORCID icon orcid.org/0000-0001-5404-9991

Fulltext: english, pdf (1 MB) pages 73-83 downloads: 92* cite
APA 6th Edition
Mohd Haziq Norsahperi, N. & A. Danapalasingam, K. (2019). A Comparative Study of LQR and Integral Sliding Mode Control Strategies for Position Tracking Control of Robotic Manipulators. International journal of electrical and computer engineering systems, 10. (2.), 73-83. https://doi.org/10.32985/ijeces.10.2.3
MLA 8th Edition
Mohd Haziq Norsahperi, Nor and Kumeresan A. Danapalasingam. "A Comparative Study of LQR and Integral Sliding Mode Control Strategies for Position Tracking Control of Robotic Manipulators." International journal of electrical and computer engineering systems, vol. 10., no. 2., 2019, pp. 73-83. https://doi.org/10.32985/ijeces.10.2.3. Accessed 1 Oct. 2020.
Chicago 17th Edition
Mohd Haziq Norsahperi, Nor and Kumeresan A. Danapalasingam. "A Comparative Study of LQR and Integral Sliding Mode Control Strategies for Position Tracking Control of Robotic Manipulators." International journal of electrical and computer engineering systems 10., no. 2. (2019): 73-83. https://doi.org/10.32985/ijeces.10.2.3
Harvard
Mohd Haziq Norsahperi, N., and A. Danapalasingam, K. (2019). 'A Comparative Study of LQR and Integral Sliding Mode Control Strategies for Position Tracking Control of Robotic Manipulators', International journal of electrical and computer engineering systems, 10.(2.), pp. 73-83. https://doi.org/10.32985/ijeces.10.2.3
Vancouver
Mohd Haziq Norsahperi N, A. Danapalasingam K. A Comparative Study of LQR and Integral Sliding Mode Control Strategies for Position Tracking Control of Robotic Manipulators. International journal of electrical and computer engineering systems [Internet]. 2019 [cited 2020 October 01];10.(2.):73-83. https://doi.org/10.32985/ijeces.10.2.3
IEEE
N. Mohd Haziq Norsahperi and K. A. Danapalasingam, "A Comparative Study of LQR and Integral Sliding Mode Control Strategies for Position Tracking Control of Robotic Manipulators", International journal of electrical and computer engineering systems, vol.10., no. 2., pp. 73-83, 2019. [Online]. https://doi.org/10.32985/ijeces.10.2.3

Abstracts
This paper provides a systematic comparative study of position tracking control of nonlinear robotic manipulators. The main contribution of this study is a comprehensive numerical simulation assessing position tracking performances and energy consumption of integral sliding mode control (ISMC), a linear-quadratic regulator with integral action (LQRT), and optimal integral sliding mode control (OISMC) under three conditions; namely, Case I) without the coupling effect, Case II) with the coupling effect on Link 1 only, and Case III) with the coupling effect on Link 2 only. The viability of the concept is evaluated based on three performance criteria, i.e., the step-response characteristics, position tracking error, and energy consumption of the aforementioned controllers. Based upon the simulation study, it has been found that OISMC offers performances almost similar to ISMC with more than 90% improvement of tracking performance under several cases compared to LQRT; however, energy consumption is successfully reduced by 3.6% in comparison to ISMC. Energy consumption of OISMC can be further reduced by applying optimization algorithms in tuning the weighting matrices. This paper can be considered significant as a robotic system with high tracking accuracy and low energy consumption is highly demanded to be implemented in smart factories, especially for autonomous systems.

Keywords
sliding mode control; robotic manipulators; optimal control; Lyapunov method; linear-quadratic regulator

Hrčak ID: 234712

URI
https://hrcak.srce.hr/234712

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