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Energies 2015, 8(10), 12116-12146; doi:10.3390/en81012116

Dual Search Maximum Power Point (DSMPP) Algorithm Based on Mathematical Analysis under Shaded Conditions

1
Department of Electrical and Electronic Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
2
Centre for Advanced Power and Energy Research, Faculty of Engineering, University Putra Malaysia, 43400 UPM Serdang, Malaysia
*
Author to whom correspondence should be addressed.
Academic Editor: Tapas Mallick
Received: 25 August 2015 / Revised: 8 October 2015 / Accepted: 13 October 2015 / Published: 27 October 2015

Abstract

Photovoltaic (PV) systems represent a clean, renewable source of energy that has non-linear current-voltage (I-V) and power-voltage (P-V) characteristics. To increase the efficiency, a PV system must operate at the maximum power point (MPP) to produce the maximum available power. Under uniform conditions, there is only a single MPP in the P-V curve of a PV system; however, determining the MPP is more complicated under partially shaded conditions (PSCs) because multiple peak power points exist. In recent years, various studies have been performed to obtain the highest peak power point under PSCs, which is referred to as the global maximum power point (GMPP). In this paper, a novel method based on mathematical analysis that reduces the search zone and simultaneously identifies the possible MPPs in the specified zone is proposed; this proposed method is called the dual search maximum power point (DSMPP) algorithm. To evaluate the effectiveness of the proposed method, simulation and hardware implementations are carried out. The results show that the search time of GMPP is significantly reduced and the GMPP is detected in the minimum amount of time with high accuracy and minimum oscillation in the power produced. View Full-Text
Keywords: boost converter; global maximum power point (GMPP); partially shaded condition (PSC); photovoltaic (PV); perturb and observation (P & O); series-parallel configuration (SP) boost converter; global maximum power point (GMPP); partially shaded condition (PSC); photovoltaic (PV); perturb and observation (P & O); series-parallel configuration (SP)
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Hajighorbani, S.; Radzi, M.A.M.; Kadir, M.Z.A.A.; Shafie, S. Dual Search Maximum Power Point (DSMPP) Algorithm Based on Mathematical Analysis under Shaded Conditions. Energies 2015, 8, 12116-12146.

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