State feedback control and variable step size MPPT algorithm of three-level grid-connected photovoltaic inverter

Lalili, Djaafer; Mellit, A.; Lourci, N.; Medjahed, B.; Boubakir, Chabane

doi:10.1016/j.solener.2013.10.024

Cited by 37 publications

(24 citation statements)

References 25 publications

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“…Variable step-size P&O method (Hong et al, 2015;Jiang et al, 2013;Kollimalla and Mishra, 2014;Lalili et al, 2011Lalili et al, 2013Liu et al, 2008;Mei et al, 2011;Pandey et al, 2008;Tey and Mekhilef, 2014) The variable step-size P&O method is derived based on the fixed step-size P&O method. In this method, the PS DV REF will be changed according to the position of OP.…”

Section: Mppt Algorithmmentioning

confidence: 99%

“…Several attempts have been presented to improve the performance of MPPT by using truly adaptive PS, these methods determines the PS according to the position of OP. In Liu et al (2008), Pandey et al (2008), Lalili et al (2011Lalili et al ( ,2013 and Tey and Mekhilef (2014), the PS is calculated by multiplying the absolute value of the slope of output power versus output voltage by a scaling factor. In Mei et al (2011), the PS is calculated as the product of the exponential of the PV array output power and the absolute value of the PV array power derivative.…”

Section: Introductionmentioning

confidence: 99%

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A comparative study on maximum power point tracking techniques for photovoltaic generation systems operating under fast changing environments

Chen

Liu

et al. 2015

Solar Energy

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Section: Mppt Algorithmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A comparative study on maximum power point tracking techniques for photovoltaic generation systems operating under fast changing environments

Chen

Liu

et al. 2015

Solar Energy

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“…Recently, the grid-connected PV systems are getting more popular over traditional stand-alone PV systems [38]. A grid connected PV system's output is conducted directly to the grid.…”

Section: Grid Connected Photovoltaic Systemsmentioning

confidence: 99%

Fotovoltaik (FV) Teknolojileri, FV Modül Karakteristiği, Bağlantı Formları ve Standartların İncelenmesi

Çelik¹,

Teke²,

Yildirim³

2015

Çukurova Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi

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The effective utilization of energy has become a major concern in recent years on account of the rapidly increasing demand with population growth and industrialization. In parallel with this growing demand towards energy usage, the world-wide energy supply has been subjected to enormous stress. Therefore, energy efficiency and using alternative energy sources issues have become more crucial. Photovoltaic (PV) systems can be shown among the mostly used alternative energy sources and this technology is gaining remarkable popularity. However, PV systems suffer from low system efficiency, high initial cost and erratic atmospheric conditions. Presently, the studies are extended in order to improve the structural efficiency of the PV panels and provide energy efficiency solutions by qualifying the raw material. In this paper, it is aimed to make an investigation on the PV cells technology in terms of efficiency, cost and technical properties based on employed raw materials. On the other hand, a PV panel model is presented to achieve extraction of panel characteristic and for usage in power systems simulation in PSCAD/EMTDC program. This panel model is suitable for the purpose of realizing power system dynamic and transient analysis of both stand-alone and grid connected PV systems. Also an evaluation of grid connection standards and codes for Turkey is presented in detail.Anahtar Kelimeler : Photovoltaic technology, Grid codes, Photovoltaic cell modelling, PV grid connection Fotovoltaik (FV) Teknolojileri, FV Modül Karakteristiği, Bağlantı Formları ve Standartların İncelenmesi ÖzetSon yıllarda enerjinin etkin kullanımı, nüfus artışı ve sanayileşme ile birlikte hızla artan enerji talebine bağlı olarak çok önemli hale getirmiştir. Enerji kullanımında artan talebe paralel olarak dünya geneli enerji arzı çok büyük baskıya maruz kalmaktadır. Bu nedenle enerji verimliliği ve alternatif enerji kaynaklarının kullanılması çok önemli bir konu haline gelmiştir.

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“…So a solution has to be searched when many PV panels are used. Using MPPT for group of PV panels which have different shading percentage shows the problem of extracting the maximum power regarding to each PV panel [11,12,[18][19][20][21][22][23]. A new serial/parallel topology reconfiguration is presented in this paper which is suitable for the connection of a large number of PV without a change in the overall topology.…”

Section: The Pv Panel Model and Practical Study Of The Shading-effectmentioning

confidence: 99%

Reconfiguration Solution for Shaded PV Panels Using Fuzzy Logic

Tabanjat

Becherif

Hissel

2014

ICREGA’14 - Renewable Energy: Generation and Applications

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This paper applies a new dynamical electrical array reconfiguration strategy on the photovoltaic (PV) panels arrangement based on the connection of all PV panels on two parallel groups to reach the 24 V requested by the considered load and providing a maximum output current by connecting in serial the two groups. If one of the PV panels or more is shaded, the connection of the other in the same group will be automatically modified to maintain the requested 24 V for each PV panel row. This dynamical reconfiguration allows also reducing the lost power, due to the shaded panel, by recovering this power from the reconfiguration of the other panels. As a result, a real time adaptation of switch matrix allows a self-ability to maintain a constant voltage at 24 V and minimum number of PV panels is switched off by isolating the effect of shaded panels. In addition, the proposed solution can also be applied for the dirty panel and identify the shaded, dusty and faulty panel.

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State feedback control and variable step size MPPT algorithm of three-level grid-connected photovoltaic inverter

Cited by 37 publications

References 25 publications

A comparative study on maximum power point tracking techniques for photovoltaic generation systems operating under fast changing environments

A comparative study on maximum power point tracking techniques for photovoltaic generation systems operating under fast changing environments

Fotovoltaik (FV) Teknolojileri, FV Modül Karakteristiği, Bağlantı Formları ve Standartların İncelenmesi

Reconfiguration Solution for Shaded PV Panels Using Fuzzy Logic

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