INVESTIGATION OF WIND FARM BORDER SHAPE EFFECT ON WİND FARM LAYOUT PROBLEM

Öz

Interest in renewable energy sources has been increasing due to the fossil-based sources being exhaustible and the harmful effects to the environment. Wind energy technology is spreading rapidly all over the world because it offers lower unit energy costs compared to other renewable energy technologies. Increasing wind energy has triggered the demand for more efficient wind farm layouts. A great number of research has been published for the solution of the complex optimization problem which has many limitations. However, the effect of the wind farm boundary shape on the results of optimization is rarely mentioned. For this reason, in this study, optimization calculations were carried out for a wind model based on long-term Kütahya wind data and four different boundaries (square, rectangular, circle and irregular). The rate of change of important design parameters depending on the wind farm boundary shape has been investigated. It was observed that the most important design parameters such as the wake efficiency, energy cost, total cost and annual energy production are less than 10% against to the sensitivities to the change of the wind farm border shape.

Anahtar Kelimeler

• Variable turbine model,irregular boundary,wind energy,wind farm layout optimization

SANTRAL SINIR ŞEKLİNİN RÜZGÂR SANTRALİ KONUMLANDIRMA PROBLEMİNE OLAN ETKİSİNİN ARAŞTIRILMASI

Öz

Fosil kökenli yakıtların tükenebilir olması ve çevreye olan zararlı etkileri neticesinde yenilenebilir enerji kaynaklarına olan ilgi artış göstermektedir. Rüzgâr enerjisi teknolojisi, diğer yenilenebilir enerji teknolojilerine kıyasla daha düşük birim enerji maliyetleri sunması sebebi ile tüm dünyada hızla yaygınlaşmaktadır. Artan rüzgâr enerjisi talebi daha verimli santral düzenlerinin elde edilmesini tetiklemiştir. Birçok kısıtlama içeren bu karmaşık problemin çözümü üzerine birçok araştırma yapılmıştır. Fakat santral sınır şeklinin optimizasyon sonuçlarına olan etkisine nadiren değinilmiştir. Bu sebeple, bu çalışmada uzun dönemli Kütahya rüzgar verisi temel alınarak oluşturulmuş bir rüzgar modeli için dört farklı sınır şeklinde (kare, dikdörtgen, daire ve düzensiz) optimizasyon hesaplamaları gerçekleştirilmiştir. Önemli tasarım parametrelerinin santral sınır şekline bağlı değişim oranları araştırılmıştır. En önemli tasarım parametreleri olan iz bölgesi verimi, enerji maliyeti, toplam maliyet ve yıllık enerji üretiminin santral sınır şeklinin değişimine olan hassasiyetlerinin %10’un altında olduğu gözlenmiştir.

Anahtar Kelimeler

• Değişken türbin modeli,düzensiz sınır,rüzgâr enerjisi,rüzgâr santrali konumlandırma optimizasyonu

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