نتایج جستجو برای: solar array

تعداد نتایج: 251166  

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...

2016
T. Kirkpatrick M. J. Burns M. J. Naughton

We present analytical simulations for the performance of nanocoaxial and -hemispherical drift-limited solar cells, to determine optimal geometrical configuration and to interpret results of experimental nanocoaxial solar cell arrays. The material system considered in these simulations is hydrogenated amorphous silicon (a-Si:H), with solar cells designed in an n–i–p stack. Simulations conducted ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده جغرافیا 1392

در این پژوهش به منظور برآورد تابش خالص برای مکان یابی نیروگاه های خورشیدی با پردازش تصاویر ماهواره ای در استان کردستان از دو روش sebal و روش solar analysis استفاده شده است در روش sebal از داده های تصاویر ماهواره ای مودیس 2000، 2003، 2006، 2009، 2012 داده های ساعات آفتابی در7 ایستگاه سینوپتیک در سطح استان کردستان ( داده های روزانه) و برای روش solar analysis از تصاویر دم منطقه با قدرت 30 و 90 متر...

2009
Takashi Nakamura

In this paper we will discuss an innovative optical system for solar power applications in space. In this system solar radiation is collected by the concentrator array which transfers the concentrated solar radiation to the optical waveguide (OW) transmission line made of low loss optical fibers. The OW transmission line directs the solar radiation to the place of solar power utilization such a...

2018
T. M. N. T. Mansur N. H. Baharudin

Received Jan 10, 2018 Revised Mar 12, 2018 Accepted Mar 26, 2018 The use of solar photovoltaic (PV) system has grown significantly in Malaysia after Renewable Energy Act has been gazetted in 2011.The objective of this paper is to highlight the technical and economic analysis of solar PV DC system to generate enough energy for residential customer group that consumed 200 kWh per month so that th...

Journal: :international journal of smart electrical engineering 2013
marjaneh hashemi shahram javadi

in recent year's renewable energy sources have become a useful alternative for the power generation. the power of photovoltaic is nonlinear function of its voltage and current. it is necessary to maintain the operation point of photovoltaic in order to get the maximum power point (mpp) in various solar intensity. fuzzy logic controller has advantage in handling non-linear system. maximum power ...

1999
J. Huang

A low-gain crossed-slot microstrip patch antenna integrated with the solar-array panel has been successfully developed for the Mars rover application at the frequency of 400 MHz. It achieved a very low mass of 0.5 kg and occupied very small real estate (6.5 percent) of the solar panel. The electrical and mechanical characteristics of several other omni-directional low-gain antennas also are dis...

2011
Jeff Cumpston John Pye Keith Lovegrove

The Australian National University has re-engineered its Big Dish design for commercialisation and mass production [1], building the 'SG4' 500m Big Dish solar paraboloidal concentrator for solar-thermal to electric energy conversion using direct-steam generation. The SG4 Dish implements two-axis tracking and may be incorporated into a dish-array for large-scale power production. A program has b...

2015
Uma Maheswara Rao

This paper deals with the improved model(Two Diode Model) of solar photovoltaic (SPV) module and back propagation neural network based maximum power point tracking (MPPT) for boost converter in a standalone photovoltaic system under variable temperature and insolation conditions. ie. The proposed model is robust to environment changes and load variations. Unlike Conventional solar-array mathema...

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