Stokastik sınır analizi kullanarak rüzgâr türbinleri için etkinlik değerlendirmesi

Yıl 2017, Cilt: 32 Sayı: 4, 1311 - 1326, 08.12.2017

Harika Akalın Serap Ulusam Seçkiner Yunus Eroğlu

https://doi.org/10.17341/gazimmfd.369740

Cited By: 2

Öz

Bu
çalışmada, Stokastik Sınır Analizi (SSA) tekniği, hâlihazırda işletmede olan
bir rüzgâr çiftliğinde üretim etkinliğini ölçmek için kullanılmıştır. Mevcut
literatürde çeşitli alanlarda yaygın olarak uygulanan bir etkinlik ölçüm
tekniği olan SSA, rüzgâr türbinlerinin etkinlik ölçümlerinde daha önce
kullanılmamıştır. SSA’nın stokastik yapısı, sınır sapmalarının hem işletmenin
kontrolünde olmayan dış etkileri hem de teknik etkinsizliği içermesi onun
anahtar özelliğidir. Önerilen yaklaşım, dört farklı senaryo altında her bir
türbinin birbirlerine göre etkinliklerini ve rüzgâr çiftliğinin tamamının
etkinliğini hesaplamak için kullanılmıştır. Bu senaryolar, çeşitli girdi
parametrelerinin etkinlik üzerindeki etkisini ölçmek için oluşturulmuştur.
Dolayısıyla, bu çalışmanın diğer bir amacı da farklı girdi senaryoları ile bir
rüzgâr türbininin etkinliğini ölçmek için hangi faktörlerin ne kadar etkili
olduğunu açıklamaktır. Ayrıca, bu dört senaryo, aylık ortalama veriler, on iki
aylık veriler ve yirmi dört aylık veriler olmak üzere üç farklı zaman
periyodunda çalışılmıştır. Çalışmanın sonucunda farklı girdi gruplarına göre
farklı etkinlik skorları elde edilmiştir. Etkinlik kayıplarının istatiksel
sapmadan mı yoksa etkinsizlikten mi kaynaklandığı SSA yönteminin avantajı
gereği yorumlanabilmiştir.

Anahtar Kelimeler

Rüzgâr türbini, performans değerlendirme, stokastik sınır analizi

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