Fotovoltaik Hücre I-V ve P-V Eğrileri Üzerine Sıcaklığın Etkisi

Abstract

Fotovoltaik (FV) hücreler, yüzeylerinden gelen güneş ışığını doğrudan elektrik enerjisine dönüştüren yarı iletken malzemelerdir. Güneş panelleri, güneş pillerinin yapısına bağlı olarak %5 ile %20 arasında verimlilikle elektrik enerjisine dönüştürülebilir. FV hücrelerinin elektrik enerjisi üretimini etkileyen birçok faktör vardır. Bu faktörler güneş pillerinin verimi, güneşlenme süresi, nem, toz, güneş ışınımı ve sıcaklık gibi faktörlerdir. Bu makalede, sıcaklığın FV hücre AkımGerilimi (I-V) ve Güç-Akım (P-V) eğrileri üzerindeki etkisi araştırılmıştır. Düşük sıcaklıklar, güneş pili verimini olumsuz etkilemezken, yüksek sıcaklıklar üretkenliği önemli ölçüde azaltır. Bu çalışma 10 (°C), 30 (°C) ve 50 (°C) ortam sıcaklığında gerçekleştirilmiştir. Sıcaklığın FV güneş pilinin P-V ve I-V üzerindeki etkisi Matlab / Simulink yazılım programı ile analiz edilmiş ve çizilmiştir. Bir fotovoltaik hücresinin verimliliği, esas olarak ortam sıcaklığına, FV hücre sıcaklığına, güneş ışınlama yoğunluğuna ve FV hücresinin üretildiği yarı iletken malzemenin türüne bağlıdır. Bu çalışmada, FV hücre kataloğu verileri kullanılarak, panelin eşdeğer devresi Matlab yazılım programında modellenmiş ve sıcaklık değişimlerinin FV hücre gücü üzerindeki etkileri araştırılmıştır.

Keywords

• FV hücre tek diyot eşdeğer devre modellemesi
• PV hücre I-V ve V-P özellikleri
• FV hücre sıcaklığı
• FV hücre tek diyot eşdeğer devresi
• Ortam sıcaklığı

Effect of Temperature on The I-V and P-V Curves of The Photovoltaic Cell

Abstract

Photovoltaic (PV) cells are semiconductor materials that convert sunlight coming on their surfaces directly into electrical energy. Solar panels can be converted into electrical energy with efficiency between 5% and 20% depending on the structure of the solar cells. There are many factors which affect the PV cells' generation of electrical energy. These factors are such as efficiency of the solar cells, sunshine duration, humidity, dust, solar radiation and temperature. In this article, the effect of temperature on the PV cell current-voltage (I-V) and power- current (P-V) curves were investigated. Low temperatures do not adversely effect on solar cell efficiency, while high temperatures reduce productivity significantly. This study was carried out for 10 (°C), 30 (°C) and 50 (°C) of ambient temperature. The effect of temperature on the P-V and I-V of the PV solar cell analyzed and plotted by Matlab/Simulink software program. The efficiency of a photovoltaic PV cell mainly depends on the ambient temperature, PV cell temperature, solar irradiation intensity and the type of semiconductor materiel which the PV cell is produced. In this study, using the PV cell catalog data, the equivalent circuit of the panel is modeled in Matlab software program and the effects of temperature changes on the PV cell power have been investigated.

Keywords

• PV cell single diode equivalent circuit modeling
• PV cell I-V and V-P features
• PV cell temperature
• PV cell single diode equivalent circuit
• Ambient temperature

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