Investigation of voltage stability for the steady and transient state in power systems with STATCOM-Fuell cell

Year 2023, Volume: 15 Issue: 3, 95 - 102, 30.12.2023

Mehmet Kenan Döşoğlu , Muhammet Demirbaş

https://doi.org/10.55974/utbd.1327742

Abstract

Abstract: Due to various operating conditions of power systems, bus voltages and load parameter values decrease. This causes the system to go into instability. Static Synchronous Compensator (STATCOM) is widely used to eliminate instability situations. Fuel cells can be used from energy storage systems to increase the efficiency of STATCOM in power systems. In this study, STATCOM and fuel cell are used together for steady and transient voltage stability in a 6-bus power system. In the voltage stability system, the relationship between the bus voltage-maximum load parameter in the steady-state operation is examined, while in the transient state study, the relationship between the bus voltage-maximum load parameter for the transient stability that occurs in the case of breaker opening-closing on the line in the system. In addition, the effects of the fuel cell at different power values are examined in detail. As a result of the study, it has been seen that the use of STATCOM and fuel cell together gives effective results in terms of voltage stability in continuous and transient situations.

Keywords

Steady and transient state, Voltage stability, STATCOM, Fuel cell, PSAT

Güç sistemlerinde sürekli ve geçici durum için gerilim kararlılığının STATCOM-Yakıt hücresi ile incelenmesi

Abstract

Güç sistemlerinde, çeşitli çalışma koşullarından dolayı, bara gerilimlerinde ve yüklenme parametresi değerlerinde azalmalar meydana gelmektedir. Buda sistemin kararsızlığa gitmesine sebep olmaktadır. Kararsızlık durumlarını ortadan kaldırmak için Statik Senkron Kompanzatör (STATCOM) yaygın olarak kullanılmaktadır. STATCOM’un güç sistemlerinde etkililiğini arttırmak için enerji depolama sistemlerinden yakıt hücresi kullanılabilmektedir. Bu çalışmada 6 baralı güç sisteminde sürekli ve geçici durum gerilim kararlılığı için STATCOM ve yakıt hücresi birlikte kullanılmıştır. Güç sisteminde sürekli durum ve kesici açma-kapaması durumunda oluşan geçici durum çalışmasındaki bara gerilim-maksimum yüklenme parametresi arasındaki ilişki incelenmiştir. Bunun yanısıra yakıt hücresinin farklı güç değerlerindeki etkileri de detaylı olarak incelenmiştir. Yapılan çalışma sonucunda STATCOM ve yakıt hücresinin birlikte kullanılmasının sürekli ve geçici durumda gerilim kararlılığı açısından etkili sonuçlar verdiği görülmüştür.

Keywords

Sürekli ve geçici durum, Gerilim kararlılığı, STATCOM, Yakıt hücresi, PSAT

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