Fotovoltaik Santrallerin Rampa Oranlarının Güç Sistemi Kararlılığına Etkisi

Abstract

Yenilenebilir enerji kaynakları kullanımının artması ile bu sistemlerin mevcut elektrik şebekesi üzerindeki etkilerinin incelenmesi güç sistemi kararlılığı açısından önem arz etmektedir. Bu çalışmada IEEE-9 Baralı güç sisteminde fotovoltaik (FV) santral farklı rampa oranları bakımından geleneksel senkron generatörlü santralle karşılaştırılarak güç sistemi kararlılık analizleri yapılmıştır. Çalışma DigSlient Powerfactory simülasyon programı kullanılarak 4 farklı senaryo üzerinden gerçekleştirilmiştir. Bu senaryolarda 3-faz kısa devre arızası oluşturularak sistemdeki dinamik durumlar rotor açısı, frekans ve gerilim kararlılığı için analiz edilmiştir. Sonuç olarak, geleneksel güç sistemlerine entegre edilen PV santrallerin olumlu ve olumsuz etkileri farklı senaryolar altında analiz edilmiştir.

Keywords

• Büyük ölçekli FV santrali
• Frekans kararlılığı
• Rotor açısı kararlılığı
• Gerilim kararlılığı
• Rampa oranı

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