Results 251 to 260 of about 57,882 (282)

Enhanced simulation of total cross tied photovoltaic arrays

Mathematics and Computers in Simulation, 2019
Abstract A photovoltaic field is classically made of parallel connected strings, each one formed by a number of series connected modules. The total cross tied interconnection, which adds string-to-string wires, allows to increase the harvested energy when non-uniform operating conditions, like partial shadowing, occur.
Orozco-Gutierrez, M. L., Spagnuolo, G., Ramos-Paja, C. A., Ramirez-Scarpetta, J. M, Ospina-Agudelo, B.   +4 more
openaire   +1 more source

Fault Analysis and Detection in Total Cross Tied Photovoltaic Arrays

2018 Twentieth International Middle East Power Systems Conference (MEPCON), 2018
The American National Electric Code (NEC) requires the presence of a series-arc-fault-detector in any Photovoltaic installation operating at a voltage greater than or equal to 80V. Therefore, the presence of an accurate series-arc-fault detector that can detect series-arc-faults and discriminate them from Partial Shading (PS) is required.
Mohamed Zakaria Shamseldein, Almoataz Youssef Abdelaziz, Abdelhamid Abdelbaset Mahmoud   +2 more
openaire   +1 more source

Improved performance of partially shaded photovoltaic array with reformed-total cross tied configuration

Energy Harvesting and Systems, 2020
Abstract Renewable energy sources are receiving wide popularity due to the shortage of fossil fuels and environmental problems caused by conventional energy sources. Solar photovoltaic energy is a widely used sustainable energy source. The power developed by a solar cell is greatly influenced by the insolation level.
Vishnu P. Madhanmohan, Abdul Saleem, Nandakumar Madathil Kovilakam   +2 more
openaire   +1 more source

Improved Reconfiguration Optimization for Maximum Power Extraction in Total-Cross-Tied PV Arrays under Nonuniform Irradiance

2020 52nd North American Power Symposium (NAPS), 2021
One of the main obstacles to solar power production is the problem of partial shading and irradiance variation. The degree to which these factors can diminish the performance of a photovoltaic (PV) system depends on the specific shading pattern, PV array topology, and the physical location of the shaded PV modules within the array.
David Gross, Mohammad Heidari Kapourchali   +1 more
openaire   +1 more source

Enhanced performance of partially shaded photovoltaic arrays using diagonally dispersed total cross tied configuration

Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2020
Partial shading on photovoltaic (PV) systems causes a reduction in generated power and multiple peaks on their electrical characteristics.
Vishnu P. Madhanmohan, M. Nandakumar, Abdul Saleem   +2 more
openaire   +1 more source

Optimal total cross tied interconnection for photovoltaic arrays to reduce partial shading losses

2012 IEEE Power and Energy Society General Meeting, 2012
The condition of having different irradiance levels among different photovoltaic modules in a photovoltaic array is called partial shading. Energy losses have been reported to occur due to partial shading. These losses could be reduced by reconnecting the modules of the array in such a way that the overall impact of partial shading on the array is ...
M. Z. S. El-Dein, M. Kazerani, M. M. A. Salama   +2 more
openaire   +1 more source

Maximum Power Estimation of Total Cross-Tied Connected PV Cells in Different Shading Conditions for High Current Application

IEEE Journal of Emerging and Selected Topics in Power Electronics, 2022
In the existing solar photovoltaic modules, cells are connected in series. The performance of the series-connected module degrades severely during partial shading condition. Further, the use of bypass diode causes multiple peak (local and global peaks) problem.
Papul Changmai, Shashank Kumar, Sisir Kumar Nayak, Sanjeev Kumar Metya   +3 more
openaire   +1 more source

An Optimal Total Cross Tied Interconnection for Reducing Mismatch Losses in Photovoltaic Arrays

IEEE Transactions on Sustainable Energy, 2013
A mismatch in a photovoltaic array implies differences in the I-V characteristics of the modules forming the array. This can lead to significant energy losses known as mismatch losses. The mismatch and the resulting losses can be reduced by altering the interconnection of the array. This paper proposes an optimal total cross tied interconnection, based
M. Z. Shams El-Dein, Mehrdad Kazerani, M. M. A. Salama   +2 more
openaire   +1 more source

Experimental investigation of serial parallel and total-cross-tied configuration photovoltaic under partial shading conditions

2017 International Conference on Sustainable Energy Engineering and Application (ICSEEA), 2017
One of issues about array photovoltaic (PV) is partial shading conditions. It can cause mismatch between the modules, leading to undesirable effects such as reduction in power generated and hot spots. Partial shading is caused by passing clouds, tree shadows, nearby building, tower, poles, etc. So the power output is less than expected value. It is not
Rudi Darussalam, Rakhmad Indra Pramana, Ahmad Rajani   +2 more
openaire   +1 more source

Effects of shading on current, voltage and power output of total cross-tied photovoltaic array configuration

TENCON 2015 - 2015 IEEE Region 10 Conference, 2015
The Philippines, being a tropical country, has a high photovoltaic (PV) energy generation potential that can help meet demand due to impending power supply shortage in the coming years. One factor that limits solar PV generation is nonuniform illumination or partial shading.
Beryll Justin G. Montano, Dion Januel F. Rombaoa, Robert Alfie S. Pena, Erees Queen B. Macabebe   +3 more
openaire   +1 more source