Kowsari Mogadam, Sarah, Salimi, Mahdi ORCID: 0000-0003-3007-3027, Bathaee, Seyyed Mohammad Taghi and Mirabbasi, Davar (2023) A novel Lyapunov-based nonlinear controller design for model-based MPPT of the thermoelectric generators. Scientia Iranica. ISSN 1026-3098 (Print), 2345-3605 (Online) (doi:https://doi.org/10.24200/SCI.2023.61170.7177)

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Abstract

A novel model-based approach for closed-loop control and maximum power point tracking(MPPT) of thermoelectric generators (TEG) has been presented using the nonlinear Lyapunov-based approach. As the TEG power derivative is always zero at maximum power point (MPP), the TEG power derivative can be employed as a feedback signal for the controller. Hence, the reference value of controller will always be zero which simplifies the controller structure significantly. Since the reference calculation block can be removed, there is no need for a cascade multi-loop controller and for this reason, the controller dynamic response can be improved. Due to the elimination of reference calculation unit, the proposed controller enjoys a superior performance, e.g., during temperature and load changes. The asymptotic stability of proposed controller has been proved. To evaluate the accuracy and efficiency of the proposed approach, it is simulated by using MATLAB software. Moreover, the experimental responses are provided by employing the TMS320F28335 digital signal processor from Texas Instruments. According to the simulation and experimental results and despite temperature and load values changes in a wide range, it is shown that the proposed closed-loop system enjoys a stable and robust performance as well as fast dynamic response and zero steady-state error.

Item Type:	Article
Additional Information:	While the copyright holder is Sharif University of Technology, under this Open Access journal, peer-reviewed accepted papers are immediately available online, with no charges for access and no restrictions on subsequent redistribution or use, as long as the authors(s) and source are cited, as specified by the Attribution Creative Commons BY License (https://creativecommons.org/share-your-work/licensing-examples/).
Uncontrolled Keywords:	nonlinear controller; MPPT; thermoelectric generator; Lyapunov based controller
Subjects:	Q Science > Q Science (General) T Technology > TK Electrical engineering. Electronics Nuclear engineering
Faculty / School / Research Centre / Research Group:	Faculty of Engineering & Science Faculty of Engineering & Science > School of Engineering (ENG)
Last Modified:	25 Sep 2023 14:15
URI:	http://gala.gre.ac.uk/id/eprint/43091

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