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ISA Trans. 2019 Apr;87:297-306. doi: 10.1016/j.isatra.2018.11.020. Epub 2018 Nov 26.

An improved MPPT scheme employing adaptive integral derivative sliding mode control for photovoltaic systems under fast irradiation changes.

Author information

1
Laboratory of Power Electronics and Industrial Control (LEPCI), Electronics department, Faculty of technology, University of Sétif-1, 19000, Sétif, Algeria. Electronic address: kihalabbas.87@gmail.com.
2
Laboratory of Power Electronics and Industrial Control (LEPCI), Electronics department, Faculty of technology, University of Sétif-1, 19000, Sétif, Algeria. Electronic address: krim_f@ieee.org.
3
Laboratory of Power Electronics and Industrial Control (LEPCI), Electronics department, Faculty of technology, University of Sétif-1, 19000, Sétif, Algeria. Electronic address: laib_abdelbaset@univ-setif.dz.
4
Laboratory of Power Electronics and Industrial Control (LEPCI), Electronics department, Faculty of technology, University of Sétif-1, 19000, Sétif, Algeria. Electronic address: bilel_ei@live.fr.
5
Laboratory of Power Electronics and Industrial Control (LEPCI), Electronics department, Faculty of technology, University of Sétif-1, 19000, Sétif, Algeria; ESTI, 23000, Annaba, Algeria. Electronic address: h.afghoul@esti-annaba.dz.

Abstract

Maximum power point tracking (MPPT) is necessary to achieve an optimal exploitation of photovoltaic (PV) system. This paper presents a novel voltage-oriented MPPT (VO-MPPT) method, where the conventional perturb and observe (P&O) algorithm is combined with the proposed external voltage control based on an adaptive integral derivative sliding mode (AIDSM). It is designed with new sliding surface, in addition, the derivative and integral terms are chosen to eliminate the overshoot during fast changes in solar irradiation and to minimize the steady-state fluctuation. Furthermore, an adaptation mechanism is joined to adjust the controller gains under each irradiation level. The proposed MPPT is tested and compared with the most widely used MPPT methods by simulations using MATLAB/SimulinkTM and real time hardware in the loop (HIL) implementation. The results obtained with the proposed MPPT show excellent dynamic performance under fast irradiation changes.

KEYWORDS:

Adaptive; Maximum power point tracking (MPPT); Perturb and observe (P&O); Photovoltaic system; Sliding mode control

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