Adjustment of variable speed wind turbine blade angle with Modified PSO

Abstract

The main motivation of this study is to adjust the blade angle (β), which affects the mechanical output power of wind turbines (WTs), by particle swarm optimization (PSO). For this purpose, the standard PSO structure has been modified. Thus, the modified PSO algorithm has become capable of updating itself depending on the change of wind speed. In this study, the blade angles of wind turbines operating at variable wind speeds were controlled and adjusted using an optimization algorithm based on swarm intelligence. Within the scope of the study, a variable speed wind turbine was operated in two different simulation environments. In the first case, the values were obtained by keeping the wing angle constant (for β=0). In the second case, the proposed modification was operated by adjusting the blade angle with the angle produced by PSO, and the results of both cases were discussed.

Keywords

• Wind turbine
• Modified PSO
• Pitch angle

Modifiye PSO ile değişken hızlı rüzgâr türbini kanat açısının ayarlanması

Öz

Bu çalışmanın ana motivasyonu, rüzgar türbinlerinin (RT) mekanik çıkış gücüne etki eden kanat açısının (𝛽) parçacık sürü optimizasyonu (PSO) ile ayarlanmasıdır. Bu amaca yönelik olarak, standart yapıdaki PSO modifiye edilmiştir. Böylece modifiye edilmiş PSO algoritması rüzgar hızının değişimine bağlı olarak kendini güncelleyebilen bir duruma getirilmiştir. Yapılan çalışma da, değişken rüzgar hızlarında çalışan rüzgar türbinlerinin kanat açılarının kontrolü sürü zekasına dayalı bir optimizasyon algoritması kullanılarak ayarlanması sağlanmıştır. Çalışma kapsamında değişen hızlı rüzgar türbinini iki farklı şekilde benzetim ortamında çalıştırılmıştır. Birinci durumda kanat açısı sabit tutularak (𝛽 = 0° için) değerler elde edilmiştir. İkinci durumda ise önerilen modifiye PSO’un ürettiği açı ile kanat açısı ayarlanarak çalıştırılmıştır ve her iki durumun sonuçları tartışılmıştır.

Anahtar Kelimeler

• Rüzgâr türbini
• Modifiye PSO
• Kanat eğim açısı

Kaynakça

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