MPPT in PV systems under partial shading conditions using artificial vision

Martín, Aránzazu D.; Vázquez, Jesús R.; Cano, Juan

doi:10.1016/j.epsr.2018.05.005

Cited by 45 publications

(19 citation statements)

References 24 publications

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“…Those curves are presented in Figure 2 with different irradiation conditions (simulation and experimental results). The model used in the simulation was presented by the authors in [31]. In this paper, a commercial PV module was chosen to be part of the experimental platform.…”

Section: Photovoltaic Systemmentioning

confidence: 99%

“…Those curves are presented in Figure 2 with different irradiation conditions (simulation and experimental results). The model used in the simulation was presented by the authors in [31]. With respect to the DC/DC converter, a buck-boost topology was designed to convert the voltage from one level to another lower or higher depending on the load requirements.…”

Section: Photovoltaic Systemmentioning

confidence: 99%

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Wireless Sliding MPPT Control of Photovoltaic Systems in Distributed Generation Systems

et al. 2019

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The aim of a photovoltaic (PV) system’s control is the extraction of the maximum power even if the irradiance, the temperature, or the parameters vary. To do that, a maximum power point tracking (MPPT) algorithm is required. In this work, a sliding control is designed to regulate the PV modules’ output voltage and make the panel work at the maximum power voltage. This control is selected to improve the robustness, the transient dynamic response, and the time response of the system under changeable environmental conditions, adjusting the duty cycle of the DC/DC converter. The DC/DC converter connected to the PV module output is a buck-boost converter. This configuration presents the advantage of providing voltages lower or higher than supplied by the photovoltaic modules to provide the required voltage to the load (including the voltages ceded by telecommunication loads, amongst others). In addition, a remote sliding control is developed to make the global supervision of the PV system in distributed generation grids. The designed algorithm is tested in an experimental platform, both locally and remotely connected to the base station, to prove the effectiveness of the sliding control. Thus, the communication effect in the control is also analyzed.

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Section: Photovoltaic Systemmentioning

confidence: 99%

“…Those curves are presented in Figure 2 with different irradiation conditions (simulation and experimental results). The model used in the simulation was presented by the authors in [31]. With respect to the DC/DC converter, a buck-boost topology was designed to convert the voltage from one level to another lower or higher depending on the load requirements.…”

Section: Photovoltaic Systemmentioning

confidence: 99%

Wireless Sliding MPPT Control of Photovoltaic Systems in Distributed Generation Systems

et al. 2019

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“…Another novel method using artificial vision to track MPP is proposed by authors in [32]. In this method, a webcam is used to recognize the shadow irradiation progressively and give the reference voltage that supplies the maximum power irrespective of the number of peaks on the P-V curve.…”

Section: Introductionmentioning

confidence: 99%

Fractional Chaos Maps with Flower Pollination Algorithm for Partial Shading Mitigation of Photovoltaic Systems

et al. 2019

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Solar Photovoltaic (PV) systems have become prominent and have attained the attention of energy engineers, governments and researchers. To achieve the maximum benefit from the PV system in spite of its nonlinear characteristic and environmental conditions, finding a robust maximum power point tracking method is essential. Over two decades, various researchers proposed numerous MPPT methods, but they failed to evaluate their methods on consistency, reliability, and robustness over several numbers of runs. Most of the researchers examined one configuration and they did not to consider the dynamic change in the irradiation conditions. Therefore, in this manuscript, the authors introduced a novel optimization technique Fractional chaotic Flower Pollination Algorithm (FC-FPA), by merging fractional chaos maps with flower pollination algorithm (FPA). The proposed technique, help FPA in extracting the Global Maximum Power Point (GMPP) under different partial shading patterns including with different PV array configurations. The proposed FC-FPA technique is tested and evaluated over 5 different patterns of partial shading conditions. The first three patterns are tested over 4S configuration made with Shell S36 PV module. The other two patterns are applied to the 4S2P configuration of Shell SM55 PV panels. The performance of the proposed variant is investigated by tracking the GMPP for abruptly changing shade pattern. Exclusive statistical analysis is performed over several numbers of runs. Comparison with perturb and observe MPPT technique is established. These results confirm that, the proposed method shows fast convergence, zero oscillation and rapid response for the dynamic change in irradiation with consistent behavior.

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“…2 The series interconnection of PV modules is a conventional way to increase the output voltage, but the output power reduces significantly during module mismatch and partial shading condition. 3 Therefore, high efficient and high voltage gain DC-DC converters are necessary for the grid integration of renewable energy resources via an inverter. Moreover, such converters should have low input current ripple in order to achieve maximum power point tracking (MPPT) for PV applications and output power regulation of fuel cells.…”

Section: Introductionmentioning

confidence: 99%

A wide load range ZVS high voltage gain hybrid DC‐DC boost converter based on diode‐capacitor voltage multiplier circuit

Priyadarshi

Kar

Karanki

2019

Int Trans Electr Energ Syst

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Summary In this paper, a single‐switch hybrid high voltage gain boost converter topology employing zero‐voltage switching (ZVS) feature is proposed. The proposed converter can achieve high voltage gain with soft switching operation over a wide range of load. The topology is a combination of the Cockcroft‐Walton diode‐capacitor voltage multiplier and a conventional boost converter, which results in a hybrid DC‐DC converter. The diode‐capacitor ladder enables the converter to achieve high voltage gain without a transformer or coupled inductor. Because of its transformerless design, single switch with lower duty cycle requirement, and ZVS feature, the efficiency of the converter is improved significantly. Moreover, due to the input inductor, it is able to provide lower input current ripple and variable fractional voltage gain, which is a key requirement for maximum power point tracking (MPPT) in photovoltaic application. A 480‐W hardware prototype with 48‐V input voltage and 450‐V output voltage is developed, and experimental results are presented to validate the efficacy of the proposed converter. The total achievable efficiency is above 95.4%, in the full load range (80‐480 W).

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MPPT in PV systems under partial shading conditions using artificial vision

Cited by 45 publications

References 24 publications

Wireless Sliding MPPT Control of Photovoltaic Systems in Distributed Generation Systems

Wireless Sliding MPPT Control of Photovoltaic Systems in Distributed Generation Systems

Fractional Chaos Maps with Flower Pollination Algorithm for Partial Shading Mitigation of Photovoltaic Systems

A wide load range ZVS high voltage gain hybrid DC‐DC boost converter based on diode‐capacitor voltage multiplier circuit

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