Low-power FOCV MPPT controller with automatic adjustment of the sample&amp;hold

López-Lapeña, Oscar; Penella, M.T.

doi:10.1049/el.2012.1345

Cited by 27 publications

(13 citation statements)

References 4 publications

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“…Some low power MPPT circuits have been proposed [6,10,17,18]. However, the MPPT methods are implemented in hardware [10,17,18] or in software [6]. A possible more suitable solution for EPOSMOTEII would be the combination of low complexity Fractional Open Circuit Voltage (FOCV) method implemented in hardware but with a software control.…”

Section: Mppt Efficiency Problemmentioning

confidence: 99%

Experimental analysis of solar energy harvesting circuits efficiency for low power applications

Fröhlich

Bezerra

Slongo

2015

Computers & Electrical Engineering

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Section: Mppt Efficiency Problemmentioning

confidence: 99%

Experimental analysis of solar energy harvesting circuits efficiency for low power applications

Fröhlich

Bezerra

Slongo

2015

Computers & Electrical Engineering

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“…The extraction of the maximum energy from PV array remains a big challenge for researchers who work in the photovoltaic field. For that reason, conventional algorithms (CAs) have been proposed to track the maximum power point (MPP) under uniform conditions of irradiation and temperature such as perturb and observe (P&O), hill climbing (HC), fractional open circuit voltage (FOCV), incremental conductance (IC) [1][2][3], etc. However, these methods are unable to find the global MPP under partial shading conditions (PSC) due to multi-peaks exhibited in the P-V curve [4], as shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

Global MPPT of photovoltaic system based on scanning method under partial shading condition

Chalh¹,

Motahhir²,

Ghzizal³

et al. 2020

SN Appl. Sci.

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The partial shading (PS) of the photovoltaic (PV) array is a major problem for the PV systems. Therefore, it is necessary to extract the global maximum power point (GMPP) under partial shading. In this paper, we propose a simple method to find the GMPP. This method scans the P-V curve and memorizes all the peaks in order to get the global peak. Next, we control a boost DC-DC converter to extract the GMPP from the PV system. In addition, this Method allows following the dynamic GP under variant SPs with less oscillations around the stable state compared to the existing works.

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“…The Fractional Open Circuit Voltage method, belonging to the second category discussed above, has been explored in several recent works [44,[52][53][54][55]. The method is based on the almost linear relationship that exists between the open-circuit voltage-V oc and the V mpp voltage:…”

Section: Introductionmentioning

confidence: 99%

Improved Fractional Open Circuit Voltage MPPT Methods for PV Systems

et al. 2019

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This paper proposes two new Maximum Power Point Tracking (MPPT) methods which improve the conventional Fractional Open Circuit Voltage (FOCV) method. The main novelty is a switched semi-pilot cell that is used for measuring the open-circuit voltage. In the first method this voltage is measured on the semi-pilot cell located at the edge of PV panel. During the measurement the semi-pilot cell is disconnected from the panel by a pair of transistors, and bypassed by a diode. In the second Semi-Pilot Panel method the open circuit voltage is measured on a pilot panel in a large PV system. The proposed methods are validated using simulations and experiments. It is shown that both methods can accurately estimate the maximum power point voltage, and hence improve the system efficiency.

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Low-power FOCV MPPT controller with automatic adjustment of the sample&hold

Cited by 27 publications

References 4 publications

Experimental analysis of solar energy harvesting circuits efficiency for low power applications

Experimental analysis of solar energy harvesting circuits efficiency for low power applications

Global MPPT of photovoltaic system based on scanning method under partial shading condition

Improved Fractional Open Circuit Voltage MPPT Methods for PV Systems

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