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  Citation Number 2
 Views 16
 Downloands 5
PV Panellerin Farklı Koşullar Altında I-V Eğrisini Çıkartan ve Maksimum Güç Noktası Takibi Yapan Deney Sisteminin Tasarımı
2020
Journal:  
Bitlis Eren Üniversitesi Fen Bilimleri Dergisi
Author:  
Abstract:

Yakın tarihte artan sanayileşmeyle beraber enerjiye olan ihtiyaç artmıştır. Konvansiyonel enerji ham maddelerinin azalması ve çevreye olan kötü etkilerinin artmasından dolayı yenilenebilir enerji kaynaklarının önemi artmıştır. Günümüzde güneş enerjisi yenilenebilir enerji kaynakları arasında en çok bilinen ve tercih edilenlerden biridir. Güneş enerjisini elektrik enerjisine dönüştürmek için fotovoltaik (PV) güneş panelleri kullanılmaktadır. Bir PV hücrenin elektriksel karakteristiği genellikle akım-gerilim (I-V) eğrisi ile temsil edilir. Bu eğri ışınım, sıcaklı vb. dış ortam değişkenlerine bağlı olarak değişkenlik göstermektedir. Dış ortam değişkenlerine bağlı olarak PV güç-gerilim (P-V) eğrisi üzerinde maksimum güç noktası takibi (MPPT) yöntemleri ile yapılmaktadır. Bu çalışmada, PV panellerin I-V ve P-V eğrilerinin çıkartılıp bir ekranda gösterilmesi ve maksimum güç takibi yapan devre tasarlanmıştır. MPPT için Sars&Gözlemle (P&O) algoritması kullanılmıştır. MPPT devresinde yükseltici dc-dc dönüştürücü tercih edilmiştir. Sensörler yardımıyla panelden elde edilen akım ve gerilim değerleri, kontrol kartına aktarılarak değerlendirilmiş ve yükseltici tip dönüştürücüdeki anahtarlama elemanı için anahtarlama sinyallerinin üretimi gerçekleştirilmiştir. Böylece PV panelin o anki verebileceği maksimum güç elde edilmiştir. Ayrıca farklı durumlar altında elde edilen akım gerilim değerleri bilgisayar ortamına aktarılmıştır.

Keywords:

The design of a test system that extracts the I-V curve of PV panels under different conditions and tracks the maximum power point
2020
Author:  
Abstract:

In recent years, the need for energy has increased. The importance of renewable energy sources has increased due to the decrease in conventional energy raw materials and the increased negative effects on the environment. Solar energy is one of the most well-known and preferred sources of renewable energy today. Solar panels (PV) are used to convert solar energy into electricity. The electrical characteristic of a PV cell is usually represented by the curve of current-stress (I-V). This curve is radiated, warm, etc. The external environment varies depending on the variables. Depending on the external environment variables, PV power-strength (P-V) curve is performed by the maximum power point tracking (MPPT) methods. In this study, the I-V and P-V curves of PV panels are drawn out and displayed on a screen and the circuit that makes maximum power tracking. The Sars and Observation (P&O) algorithm is used for MPPT. The upgrading dc-dc converter in the MPPT circuit is preferred. The current and voltage values obtained from the panel with the help of the sensors have been assessed by transferring to the control card and the production of switching signals for the switching element in the elevator type converter has been carried out. So the maximum power that the PV panel can give is obtained. Also, the current voltage values obtained in different situations are transferred to the computer environment.

Keywords:

Design Of An Experimental Test Bench To Obtain I-v Curve and To Track Maximum Power Point Of Pv Modules Under Different Conditions
2020
Author:  
Abstract:

With the increasing industrialization in recent history, the need for energy has increased. The importance of renewable energy sources has increased due to the reduction of conventional energy raw materials and the increasing environmental impact. Nowadays, solar energy is one of the most known and preferred renewable energy sources. Photovoltaic (PV) solar panels are used to convert solar energy into electrical energy. The electrical characteristic of a PV cell is generally represented by the current-voltage (I-V) curve. This curve depends on radiation, temperature and other external environment variables. Maximum power point tracking (MPPT) methods are used to obtain maximum power under variable external environment conditions. In this study, circuit is designed to monitor I-V and P-V curves and to obtain maximum power of PV modules. Pertubation&Observation (P&O) algorithm was used for MPPT control. The boost type dc-dc converter is preferred in the MPPT circuit. With the help of sensors, the current and voltage values ​​are obtained from the PV modules and transferred to the control board to evaluate and produce of switching signals of converter. Thus, PV module can give maximum power at the different conditions. In addition, current and voltage values which are ​​obtained under different conditions are transferred to personal computer.

Keywords:

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Bitlis Eren Üniversitesi Fen Bilimleri Dergisi

Field :   Fen Bilimleri ve Matematik; Mühendislik

Journal Type :   Ulusal

Metrics
Article : 948
Cite : 1.903
2023 Impact : 0.228
Bitlis Eren Üniversitesi Fen Bilimleri Dergisi