ANN based Predictive Control of Three Phase Grid Connected Photovoltaic Inverter

Yıl 2025, Cilt: 6 Sayı: 1, 185 - 202, 19.06.2025

Süleyman Yarıkkaya , Kadir Vardar

https://doi.org/10.55546/jmm.1646135

Öz

Today, using renewable energy sources is critically essential for sustainable energy. Photovoltaic (PV) systems are widely preferred for using solar energy, one of the renewable energy sources. With the widespread use of PV systems, their efficiency has also gained importance. In grid-connected systems, synchronization with the grid is critical. One of the essential factors affecting synchronization is hardware and software delays. Inverter circuits, the effect of delays in the system can be reduced using predictive controllers. Inverter circuits, the effect of delays in the system can be reduced using predictive controllers. This study aims to increase the system efficiency using a predictive current controller. Therefore, a predictive artificial neural network (ANN) based current controller is proposed for three-phase grid-connected single-stage PV inverter system control. In this work firstly, a 4kVA three-phase grid-connected PV inverter is modeled in a Matlab/Simulink environment. Two different current controllers are used in the simulation, and the obtained results are compared. The Proportional Integrator (PI) was used as the current controller in the first PV inverter system. Then, a PI-based Reference Predictive ANN (PI-PNN) current controller was designed and trained using a simulation structure that includes a PI current controller and a Reference Predictive ANN (RefPNN) in the system. When the results obtained from the simulation study were compared, it was determined that PI-PNN was more efficient than the PI current controller.

Anahtar Kelimeler

Artificial Neural Networks , Predictive Current Controller , Grid Connected PV Inverter

Üç Fazlı Şebeke Bağlantılı Fotovoltaik Eviricinin YSA Tabanlı Öngörülü Kontrolü

Öz

Günümüzde sürdürülebilir enerji için yenilebilir enerji kaynaklarının kullanımı kritik bir öneme sahiptir. Yenilenebilir enerji kaynaklarından biri olan güneş enerjisinin kullanımı için yaygın olarak fotovoltaik (PV) sistemler tercih edilmektedir. PV sistemlerin kullanımının yaygınlaşmasıyla birlikte PV sistemlerin verimliliği de önem kazanmıştır. Şebeke bağlantılı sistemlerde, şebeke ile senkronizasyon çok önemlidir. Senkronizasyonu etkileyen önemli etkenlerden biri donanımsal ve yazılımsal gecikmelerdir. Evirici devrelerinde, öngörülü kontrolcüler kullanılarak sistemde oluşacak gecikmelerin etkisi azaltılabilmektedir. Bu çalışmada, öngörülü bir akım kontrolcüsü kullanılarak sistem verimliliğinin arttırılması amaçlanmıştır. Bundan dolayı, üç fazlı şebeke bağlantılı tek aşamalı PV evirici sistem kontrolünde kullanılması için öngörülü yapay sinir ağı (YSA) tabanlı bir akım kontrolcüsü önerilmektedir. Bu çalışmada ilk olarak, Matlab/Simulink ortamından 4kVA’lık üç fazlı şebeke bağlantılı bir PV evirici modellenmiştir. Benzetimde iki farklı akım kontrolcüsü kullanılmış ve elde edilen sonuçlar karşılaştırılmıştır. İlk PV evirici sistemde, akım kontrolcüsü olarak Oransal İntegratör (PI) kullanılmıştır. Daha sonra sistemde PI akım kontrolcüsü ve Referans Akım Öngörücü YSA (RefPNN) içeren bir benzetim yapısı kullanılarak PI tabanlı bir Referans Öngörülü YSA (PI-PNN) akım kontrolcüsü tasarlanmış ve eğitilmiştir. Yapılan simülasyon çalışmasından elde edilen sonuçlar karşılaştırıldığında PI-PNN’nin, PI akım kontrolcüsüne göre daha verimli olduğu tespit edilmiştir.

Anahtar Kelimeler

Yapay Sinir Ağları , Öngörülü Akım Kontrolcüsü , Şebeke Bağlantılı PV evirici

Teşekkür

Bu çalışma Süleyman YARIKKAYA’nın Doktora tezinden üretilmiştir.

Kaynakça

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