نتایج جستجو برای: partial shading condition

تعداد نتایج: 542060  

Journal: :Anais do VI Simpósio Brasileiro de Sistemas Elétricos 2022

The power loss in a photovoltaic array under identical partial shading pattern is proportional to the percentage of shading. This makes sense, as depends on solar irradiance generate electrical energy. However, it tacitly assumed that maximum partially shaded PV always decreases intensity increases. although poorly documented, appears literature this may not be case. investigation characteristi...

1999
Lyle Noakes Ryszard Kozera Reinhard Klette

In this paper we analyze a specific problem within the context of recovering the geometric shape of an unknown surface from multiple noisy shading patterns generated by consecutive parallel illuminations by different light-sources. Shading-based single-view shape recovery in computer vision often leads to vector fields (i.e. estimated surface normals) which have to be integrated for calculation...

Journal: :Energies 2021

During the day, photovoltaic (PV) systems are exposed to different sunlight conditions in addition partial shading (PS). Accordingly, maximum power point tracking (MPPT) techniques have become essential for PV secure harvesting possible from modules. In this paper, optimized control is performed through application of relatively newly developed optimization algorithms under Partial Shading (PS)...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم 1392

سازند پابده در برش دره شهر شامل 260متر شیل، شیل آهکی، مارن و آهک می باشد. مطالعات انجام شده بر روی فرامینیفرهای پلانکتون منجر به شناسایی و ارائه تعداد 12 بیوزون شده است. این بیوزون ها عبارتند از: بیوزون شماره یک: parasubbotina pseudobulloides partial-range zone ، بیوزون شماره دو: subbotina triloculinoides partial-range zone، بیوزون شماره سه: morozovella angulata partial-range zone ، بیوزون شمار...

Journal: :Applied sciences 2022

In this paper, a new maximum power point tracking (MPPT) framework for photovoltaic (PV) systems is presented based on the remora optimization algorithm (ROA) subjected to standard and partial shading conditions. The studied system includes PV array, DC/DC converter, load MPPT control system. variable voltage, converter duty cycle, which optimally determined using ROA that inspired parasitic be...

Journal: :پژوهش های زراعی ایران 0
بی بی الهه موسوی فر محمد علی بهدانی مجید جامی الاحمدی سید علی موسوی فر

in order to study the effects of shading on head and its near leaves on yield and yield components of spring safflower genotypes, an experiment was conducted in factorial arrangement based on a complete randomized block design with four replications at agricultural research station, faculty of agriculture, birjand university during 2008. factors were including three spring safflower genotypes (...

Journal: :پژوهش های حبوبات ایران 0
فرشته دارابی علی حاتمی محمد جواد زارع رحیم ناصری

introduction lentil (lens culinaris medic) is a member of the leguminosae (fabaceae) family and an important pulse crop grown in iran. growth of lentil plant is highly sensitive to environmental conditions, especially solar radiation, high temperature and water availability. one of the important reasons for unstable lentil yield is the indeterminate growth habit of lentil plants. extensive vege...

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