Integration of Solar Power Plants to Grid with Optimal Connection Criteria and Energization of Critical Loads in Island Mode Operation

Year 2018, Issue: 14, 306 - 314, 31.12.2018

Erdin Gökalp

https://doi.org/10.31590/ejosat.482591

Abstract

The improvements and additional equipment
implementation demand for the conventional grids are on increase as a result of
the increase of the number of renewable power plants and smart grid components.
The effect of the renewable power plants on the grid are on increase
exponentially as the increase on the number of the renewable power plants.  In order to keep the grid stable and integrate
the renewables to the grid optimally, necessary analysis have to be realized
and the optimal integration criteria have to be investigated carefully. The
other optimal integration factors are eligibility for island mode operation and
energization of critical loads during a possible fault event along with grid
stability and voltage regulation criteria. In this study, IEEE 13 bus test
system is built in simulation environment as a district model along with a
solar power plant (SPP) model and the SPP is integrated to existing district
network. The optimal integration criteria of maintaining voltage regulation in
a reasonable level, reducing line losses and the eligibility of island mode
operation are investigated during the study steps. The optimal integration
criteria are met as the result of the analysis on the simulated grid model and
SPP integration study along with energization of critical loads during a grid
blackout.

Keywords

Smart grids, solar power plants, grid integration, optimal integration

Optimal Bağlantı Kriterlerine Göre Güneş Enerji Santrallerinin Şebeke Entegrasyonu ve Ada Modunda Çalışmada Kritik Yüklerin Enerjilendirilmesi

Abstract

Akıllı şebeke bileşenlerinin ve yenilenebilir enerji
kaynaklarının artması ile birlikte konvansiyonel şebekelere eklemeler ve
iyileştirmeler yapılması kaçınılmaz olmuştur. Yenilenebilir enerji
kaynaklarının sayısının artması ile birlikte şebeke üzerinde olan etkileri de
katlanarak artmaktadır. Şebekede stabiliteyi korumak ve yenilenebilir enerji
kaynaklarını optimal şekilde konumlandırabilmek için gerekli analizler
gerçekleştirilmeli ve yenilenebilir enerji santrallerinin şebeke entegrasyonu
bu kriterler baz alınarak sağlanılmalıdır. Stabilite ve optimal konumlandırma
kriterlerinin yanı sıra dikkate alınması gereken diğer bir faktör ise ada modunda
çalışma ve kritik yüklerin optimal şekilde enerjilendirilmesinin sağlanmasıdır.
Gerçekleştirilen çalışmada IEEE 13 baralı test sistemi bir mahalle şebekesi
olarak kullanılıp güneş enerji santrali (GES) entegrasyonu
gerçekleştirilmiştir. Entegrasyon esnasında optimal bağlantı noktası seçimi,
gerilim regülasyonu, hat kayıplarının azaltılması ve ada modunda çalışma
kriterleri göz önüne alınmıştır. Kurulan şebeke modeli ve GES modelinin
entegrasyonu ile optimal bağlantı kriteri sağlanmış ve şebekede meydana gelmesi
muhtemel bir arıza esnasında kritik yüklerin GES ada modunda çalışma fonksiyonu
ile enerjilendirilmesi sağlanmıştır.

Keywords

Akıllı şebekeler, güneş enerji santrali, şebeke entegrasyonu, optimal entegrasyon

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