A novel MPPT algorithm for photovoltie systems under dynamic partial shading — Recurrent scan and track method

Dolara, Alberto; Leva, Sonia; Magistrati, G.; Mussetta, Marco; Ogliari, Emanuele; Arvind, R. Varun

doi:10.1109/icrera.2016.7884508

Cited by 15 publications

(4 citation statements)

References 10 publications

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“…Specifically, the bPV module was located in Milan at the SolarTech LAB (latitude 45.50°N; longitude 9.16°E), placed on the building roof of the Department of Energy of Politecnico di Milano. The layout of the SolarTech LAB and the instrumentation available were designed and improved over the years to measure the performance of a PV system integrated into external shading devices [9], to assess the performance of organic PV modules in real outdoor conditions [10], [11], to test PV modules and maximum power point tracking under dynamical partial shading conditions [12]- [14], to investigate the effects of PV modules early degradation [15], and to provide real data for the assessment between different forecasting methods (deterministic models and a hybrid method based on artificial neural network) for the day-ahead output power [16].…”

Section: Methodsmentioning

confidence: 99%

Characterization of Bifacial Photovoltaic Modules Based on I-V Curves Outdoor Measurement

Dolara,

Leva,

Mazzeo

et al. 2023

2023 IEEE International Conference on Environment and Electrical Engineering and 2023 IEEE Industrial and Commercial Power Syst

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Photovoltaic (PV) systems are well known for their simplicity of design, environmental friendliness, and low maintenance. Among the PV technologies, the behaviour of bifacial PV modules was studied in this research. Measurements of the I-V curves were carried out in the SolarTech LAB test facility at the Department of Energy of Politecnico di Milano, Italy, to detect the bifacial PV module behaviour, mainly in terms of power performance. In particular, I-V and power-voltage curves were measured at different tilt angles to consider several irradiance and cell temperature levels with both sides uncovered as well as with the back side covered. This last configuration was tested to evaluate the contribution of the rear face in the overall photoelectric conversion process. The comparison between the bifacial and monofacial operations highlighted that the power at the maximum power point of the bifacial operation can increase up to 13%. At the same time, leaving the rear face free allows for reducing the bifacial cell temperature up to about 6°C.

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Section: Methodsmentioning

confidence: 99%

Characterization of Bifacial Photovoltaic Modules Based on I-V Curves Outdoor Measurement

Dolara,

Leva,

Mazzeo

et al. 2023

2023 IEEE International Conference on Environment and Electrical Engineering and 2023 IEEE Industrial and Commercial Power Syst

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“…Hence, the traditional maximum power point tracking (MPPT) techniques are generally not capable of differentiating among local and global power peaks in the P-V curve of PV systems, which also impacts the performance of the whole system. Therefore, the global maximum power point tracking (GMPPT) algorithms are required to identify the global power peak from many local peaks [44][45][46][47][48][49].…”

Section: Bypass Diode Methodologymentioning

confidence: 99%

Performance Assessment of Mismatch Mitigation Methodologies Using Field Data in Solar Photovoltaic Systems

et al. 2022

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Partial shading and other non-ideal conditions cause electrical mismatches that reduce the output power generated by a photovoltaic (PV) system. It affects the overall performance and efficiency of PV systems. Therefore, a model is developed in MATLAB, which analyses the performance of the PV systems under real irradiance profiles and temperatures for various available mismatch mitigation methodologies, i.e., bypass diode, DC power optimizer, and differential power processing (DPP). More specifically, this study will help to understand the best mismatch reduction methodologies for a solar PV system under different scenarios. The results also are validated by comparing them with a similar PV system installed in SolarTechLAB, which also operates under the same irradiance and temperature conditions under which these models are tested. This study also presents novel results, covering discussions on the reverse voltage distribution under mismatch scenarios among bypass diode, DC power optimizer, and DPP techniques.

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“…It was found that a basic problem in the application of the PSO for the MPPT system is in its random nature [16]. Very low values of r 1 and r 2 result in a very low velocity, thus a large number of iteration is required to reach the solution.…”

Section: Pso-based Algorithm Implementationmentioning

confidence: 99%

An Evolutionary-Based MPPT Algorithm for Photovoltaic Systems under Dynamic Partial Shading

et al. 2018

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Abstract:The increase of renewable energy usage in the last two decades, in particular photovoltaic (PV) systems, has opened up different solar plant configurations that need to operate and properly perform in terms of efficient power transfer with respect to all of the involved components, such as inverters, grid interface, storage, and other electrical loads. In such applications, the power characteristics of the plant modules all together represent the main components that are responsible for power extraction, depending on both external and internal factors. Conventional maximum power point tracking techniques may not have a proper conversion efficiency under particular external dynamic conditions. This paper proposes an evolutionary-based maximum power point tracking algorithm suitable to operate under dynamic partial shading conditions and compares its performance with classical maximum power point tracking methods in order to evaluate their conversion efficiency in partial shading scenarios with relevant and dynamic changes in the environmental conditions. Simulations taking into account the different dynamic shading conditions were carried out to prove the effectiveness and limitations of the proposed approach with respect to classical algorithms.

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A novel MPPT algorithm for photovoltie systems under dynamic partial shading — Recurrent scan and track method

Cited by 15 publications

References 10 publications

Characterization of Bifacial Photovoltaic Modules Based on I-V Curves Outdoor Measurement

Characterization of Bifacial Photovoltaic Modules Based on I-V Curves Outdoor Measurement

Performance Assessment of Mismatch Mitigation Methodologies Using Field Data in Solar Photovoltaic Systems

An Evolutionary-Based MPPT Algorithm for Photovoltaic Systems under Dynamic Partial Shading

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