Büyük Ölçekli Fotovoltaik Santrallerde Aktif Güç Kontrol Yöntemlerinin Frekans Kararlılığı Analizi

Yıl 2021, Cilt: 11 Sayı: 21, 17 - 27, 30.06.2021

Bora Çavdar , Ömür Akyazı , Erdinc Sahın , Fatih Nuroglu

Öz

Güç sistemlerinde fotovoltaik (FV) santrallerin entegrasyonu gün geçtikçe artmaktadır. Bu artan entegrasyon sebebiyle PV santrallerin yüksek penetrasyon seviyesinde güç sistemine katılması toplam atalet momentini azaltıcı yönde etki ortaya çıkarmaktadır. Ayrıca yüksek penetrasyonda güç sistemine katılan bu santrallerin frekans desteği sağlamaması, sistemde frekans açısından güvenlik sorunu teşkil etmektedir. Bu yüzden, bu çalışmada Western Electricity Coordinating Council (WECC) tarafından tasarlanan FV santralin frekansa destek veren ve vermeyen aktif güç kontrol yöntemlerinin (AGKY) farklı senaryolar için frekans kararlılığı analizi DigSilent Powerfactory programında yapılmıştır. Yapılan analiz güç sistemlerinde meydana gelen geçici olaylar üzerinden değerlendirilmiştir. Dikkate alınan geçici olaylar generatörün, yükün ve hattın geçici olarak devreden çıkmasıdır. Ayrıca 3 faz kısa devre arızası için de analiz yapılmış ve elde edilen tüm sonuçlar değerlendirilmiştir.

Anahtar Kelimeler

Büyük ölçekli fotovoltaik santral, frekans kararlılığı analizi, frekans desteği, WECC, aktif güç kontrol yöntemleri

Kaynakça

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