STATCOM’un Hidro-Termal Optimal Güç Akışı Algoritmasına Dahil Edilmesi

Abstract

Bu makale, Senkron Statik Kompanzatör (STATCOM) güç akışı modellerinin bir hidrotermal optimum güç akışı (HTOPF) algoritmasına dahil edilmesinin sonuçlarını sunmaktadır. STATCOM temel olarak kaynak dönüştürücünün voltaj büyüklüğünü ve faz açısını algoritmaya dahil eder. Dahil edilen her STATCOM için, genişletilmiş bir Lagrangian fonksiyonu oluşturulmuştur. Bu fonksiyonların birinci ve ikinci türevleri mevcut bir algoritmanın gradyan vektörüne ve Hessian matrisine eklenmiştir. Değiştirilmiş algoritma MATLAB R2018a kullanılarak uygulanmış ve 30 ve 57 bara sistemlerinde test edilmiştir. İki ve üç STATCOM sırasıyla 30 ve 57 bara sistemlerinde test edilmiştir. Elde edilen sonuçlar, STATCOM’ların şebekeye gerekli reaktif gücün enjeksiyonu ve emilimi yoluyla sistemlerin voltaj profilini önemli ölçüde iyileştirdiğini göstermiştir. Ancak, toplam sistemlerin günlük enerji kaybı, günlük enerji üretimleri (her iki santralden), günlük yakıt maliyeti ve hidro santral su değeri üzerindeki etkileri önemsizdir.

Keywords

• HTOPF
• STATCOM
• gerilim büyüklüğü
• reaktif güç
• optimizasyon aralığı

Incorporating STATCOM into a Hydro-Thermal Optimal Power Flow Algorithm

Abstract

This paper presents the results of the inclusion of Synchronous Static Compensator (STATCOM) power flow models into a hydro-thermal optimal power flow (HTOPF) algorithm. STATCOM basically introduces the voltage magnitude and phase angle of the source converter into the algorithm. For each incorporated STATCOM, an augmented Lagrangian function was formed. The first and second derivatives of these functions were added to the gradient vector and Hessian matrix of an existing algorithm. The modified algorithm was implemented using MATLAB R2018a and tested on 30 and 57 bus systems. Two and three STATCOMs were, respectively, tested on 30 and 57 bus systems. The results obtained showed that the STATCOMs significantly improved the systems’ voltage profile through the injection and absorption of required reactive power into the networks. However, its impacts on the total systems daily energy loss, daily energy generations (from both plants), daily fuel cost and hydro plant water worth are insignificant.

Keywords

• HTOPF
• STATCOM
• voltage magnitude
• reactive power
• optimization interval

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