Yıllık PV enerji üretiminin tahmini için sistem modeli ve programın tasarımı: karşılaştırmalı bir çalışma

Öz

Bir yerin elektrik üretim tesisi kurulumuna uygunluğunun değerlendirilmesi, uzun vadeli ölçümler ve hesaplamalar gerektirir. Güneş enerjisi santralinin proje sürecinde öngörülen enerji üretim değerleri, proje maliyetinin geri dönüş süresini doğrudan etkilediği için hesaplamaların doğru yapılması büyük önem arz etmektedir. Bu çalışmada en yakın tahmin değerlerini bulmak için bir model ve program tasarlanmıştır. Tasarlanan model kullanılarak Balıkesir ilindeki 54 kWh güneş enerjisi santrali (GES) için enerji üretim değerleri tahmin edilmiştir. GES'in farklı açılara, yönlere ve kapasitelere sahip iki gruptan oluşması hesaplamanın doğruluğunun karşılaştırılması açısından önemlidir. Geliştirilen model, saatlik meteorolojik verileri ve katalog değerlerini Enerji üretimi hesaplamalarında kullanmıştır. Model, güneşin tüm açılarının ve sistemin karakteristik verilerinin hesaplanmasına olanak sağlar. Geliştirilen program PVGIS (Photovoltaic Geographical Information System) programlarının enerji üretim sonuçları ile karşılaştırılmıştır. Yapılan analizler sonucunda tasarlanan program sayesinde daha gerçekçi ve yakın sonuçlar üretildiği görülmüştür. Bu programın avantajı diğer programlara göre fotovoltaik (FV) sistemin daha fazla parametresinin izlenebilmesidir.

Anahtar Kelimeler

• Güneş enerjisi
• Matlab/Simulink
• PVGIS
• Sarah 2
• GES enerji üretim tahmini

Design of system model and program for estimation of annual PV energy production: a comparative study

Öz

Suitability evaluation of a location for power generation plant installation requires long-term measurements and calculations. Since the energy production values foreseen in the project process of the solar power plant directly affect the return period of the project cost, it is of great importance to make the calculations correctly. In this study, a model and program were designed to find the closest estimation values. Energy production values are estimated for 54 kWh solar power plant (SPP) in Balikesir using designed model. It is important that the SPP consists of two groups with different angles, directions and capacities in terms of comparing the accuracy of the calculation. The developed model used the hourly meteorological data and catalog values to Energy production calculations. The model allows making calculations for all the angles of the sun and the characteristic data of the system. The developed program was compared with energy production results of PVGIS (Photovoltaic Geographical Information System) programs. As a result of analysis, it has been observed that more realistic and closer results were produced by means of the designed program. The advantage of this program is that more parameters of the photovoltaic (PV) system can be monitored compared to the other programs.

Anahtar Kelimeler

• Solar energy
• Matlab/Simulink
• PVGIS
• Sarah 2
• prediction of SPP energy generation.

Kaynakça

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