Results 21 to 30 of about 171,521 (322)
Detection and assessment of partial shading in photovoltaic arrays
Journal of Electrical Systems and Information Technology, 2016 The paper presents a methodology for detection and assessment of partial shading conditions in photovoltaic (PV) arrays based on artificial neural networks (ANN) as a preliminary step toward automatic supervision and monitoring.
Fawzan Salem, Mohamed A. Awadallah
doaj +1 more source
Necessity Analysis of Bypass Diode for AC Module under Partial Shading Condition
Energies, 2021 To protect a photovoltaic module from the hot spot effect more efficiently, an AC (alternating current) module that contains a module-level MPPT (maximum power point tracking) has been put forward.
Huixue Ren, Peide Han
doaj +1 more source
Archives of Control Sciences, 2023 The solar photovoltaic output power fluctuates according to solar irradiation, temperature, and load impedance variations. Due to the operating point fluctuations, extracting maximum power from the PV generator, already having a low power conversion ...
K. Bentata, T. Benslimane
semanticscholar +1 more source
Power optimization in partially shaded photovoltaic systems
Tehnički Glasnik, 2018 The Power-Voltage characteristic of a photovoltaic (PV) array exhibits non-linear behaviour when exposed to uniform solar irradiance. Maximum Power Point (MPP) tracking is challenging due to the varying climatic conditions in a solar PV system. Moreover,
Zehan Kesilmiş +2 more
doaj +1 more source
Solar array fed synchronous reluctance motor driven water pump : an improved performance under partial shading conditions [PDF]
, 2019 An improved performance of a photovoltaic (PV) pumping system employing a synchronous reluctance motor (SynRM) under partial shading conditions is proposed.
Al-Dhaifallah, Mujahed +3 more
core +2 more sources
Crystalline Silicon PV Module under Effect of Shading Simulation of the Hot-Spot Condition [PDF]
, 2017 This paper centers on the silicon crystalline PV module technology subjected to operation conditions with some cells partially or fully shaded. A shaded cell under hot-spot condition operating at reverse bias are dissipating power instead of delivering ...
Anjos, Ruben +3 more
core +2 more sources
IEEE Access, 2020 The power-voltage (P-U) curve of PV array shows multiple power points, which brings challenges to fast and accurately tracking of the global maximum power point.
Lijuan Li +6 more
doaj +1 more source
Optimal design of photovoltaic shading systems for multi-story buildings [PDF]
, 2019 This study provides new insights into the comprehensive energy and economic performances of photovoltaic shading systems (PVSS) in multi-story buildings. A numerical shading model was developed to evaluate the shading effect from an upper PVSS row on its
Fang, Yueping +7 more
core +1 more source
Efficient Photovoltaic System Maximum Power Point Tracking Using a New Technique
Energies, 2016 Partial shading is an unavoidable condition which significantly reduces the efficiency and stability of a photovoltaic (PV) system. When partial shading occurs the system has multiple-peak output power characteristics.
Mehdi Seyedmahmoudian +4 more
doaj +1 more source
An approximation scheme for an Eikonal Equation with discontinuous coefficient [PDF]
, 2013 We consider the stationary Hamilton-Jacobi equation where the dynamics can vanish at some points, the cost function is strictly positive and is allowed to be discontinuous. More precisely, we consider special class of discontinuities for which the notion
Adriano Festa +4 more
core +3 more sources