نتایج جستجو برای: photovoltaic array

تعداد نتایج: 155243  

Journal: :Frontiers in Energy Research 2023

In this article, the power generation of a concentrated space solar station (SSPS) is enhanced by current-injected total-cross-tied (TCT-CI) photovoltaic (PV) array. First, mathematical model TCT-CI–connected PV array established. Second, arrays with several common topologies and TCT-CI topology are simulated analyzed using MATLAB/Simulink. At last, comparative experiments conducted for TCT und...

Journal: :International Journal of Electrical and Computer Engineering (IJECE) 2020

Journal: :IEEE Access 2021

Fault identification in Photovoltaic (PV) array is a contemporary research topic motivated by the higher penetration levels of PV systems recent electrical grids. Therefore, this work aims to define an optimal Machine learning (ML) structure automatic detection and diagnosis algorithm for common faults, namely, permanent (Arc Fault, Line-to-Line, Maximum Power Point Tracking unit failure, Open-...

Maysam Sadeghi, Mohamad Agha Shafiyi Mojtaba Khederzadeh,

This paper presents a grid connected photovoltaic system, which acts as both power generator and active power filter (APF), based on Flying Capacitor Multicell (FCM) converter. Increase in the number of output voltage levels, natural self-balancing of flying capacitors and dc link voltage and lower power rating of components are the main futures of FCM converter compared with conventional multi...

Maysam Sadeghi, Mohamad Agha Shafiyi Mojtaba Khederzadeh,

This paper presents a grid connected photovoltaic system, which acts as both power generator and active power filter (APF), based on Flying Capacitor Multicell (FCM) converter. Increase in the number of output voltage levels, natural self-balancing of flying capacitors and dc link voltage and lower power rating of components are the main futures of FCM converter compared with conventional multi...

2010
Eloy Díaz-Dorado Andrés Suárez-García Camilo Carrillo

The optimal location and orientation of a photovoltaic array is not sufficient to produce the maximum energy generation. The shadows are responsible for power losses. These can be reduced by the following: changing the type of PV cell used, the configuration of the bypass diodes, and also the dimension or the limits of adjustment in the MPP inverter search. In this paper, different scenarios ha...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی - دانشکده مهندسی برق و کامپیوتر 1391

many mobile and off-grid devices include electronics and other electrical consumers like servo drives, which need a quite low supply power. since the price for photovoltaic modules drops continuously, photovoltaic power supply is interesting in more and more applications. in solar powered systems, a battery is needed to store energy for the night and cloudy periods. the power electronics of suc...

2013
Neha Adhikari Bhim Singh

This paper deals with the analysis, design and control of a small power standalone solar photovoltaic (SPV) generating system. A PV array of 33V-43.2V is taken as an input and its output voltage is achieved as 360V dc using a flyback converter. The battery is charged at this voltage and using a single-phase voltage source inverter (VSI) it is converted into a single phase ac of 220Vac, 50 Hz. A...

2016
Ibrahim Anwar Ibrahim Tamer Khatib Azah Mohamed Tomonobu Senjyu

This paper presents a comparative study between two proposed size optimization methods based on two battery’s models. Simple and complex battery models are utilized to optimally size a standalone photovoltaic system. Hourly meteorological data are used in this research for a specific site. Results show that by using the complex model of the battery, the cost of the system is reduced by 31%. In ...

2016
Jonathan E. Spanier Vladimir M. Fridkin Andrew M. Rappe Andrew R. Akbashev Alessia Polemi Yubo Qi Zongquan Gu Steve M. Young Christopher J. Hawley Dominic Imbrenda Geoffrey Xiao Andrew L. Bennett-Jackson Craig L. Johnson

Ferroelectric absorbers, which promote carrier separation and exhibit above-gap photovoltages, are attractive candidates for constructing efficient solar cells. Using the ferroelectric insulator BaTiO3 we show how photogeneration and the collection of hot, non-equilibrium electrons through the bulk photovoltaic effect (BPVE) yields a greater-than-unity quantum efficiency. Despite absorbing less...

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