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OPTİMAL KAZANÇ TABLOLAMALI GÜÇ SİSTEM KARARLAYICISI TASARIMI

DESIGN OF OPTIMAL GAİN SCHEDULING BASED POWER SYSTEM STABILIZER

Journal Name:

  • Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi

Publication Year:

  • 2008

Key Words:

Keywords (Original Language):

Author NameUniversity of AuthorFaculty of Author
Abstract (2. Language): 
Unsufficient damping of small magnitude electromechanical oscillations seen in a power system, in the 0.2-3 Hz frequency range, can present limitations on the power transfer capability of power systems which cause the instability. Power system stabilizers (PSSs) can enhance the dynamic stability of the system by increasing the damping torque of the synchronous machines in the system to damp the oscillations. In this study three kinds of PSS are investigated: conventional phase lead-lag PSS, optimal controller based PSS and optimum gain scheduling based PSS. Simulation results show that the optimum gain scheduling based PSS give a beter performance especially in operating point changes condition.
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Abstract (Original Language): 
Güç sistemlerinde görülen, 0.2 - 3.0 Hz frekans aralığında küçük genlikli salınımlar gerektiği gibi sönümlenmediklerinde sistemin güç iletim kapasitesini sınırlayarak güç sisteminin kararsızlığa gitmesine neden olabilirler. Güç sistem kararlayıcıları (GSK) bu salınımların sönümlenmesi için gerekli olan sönümleme momentini üreten sistemlerdir. Bu çalışmada üç farklı GSK yapısı; klasik faz ilerletici-geriletici, sabit kazançlı optimal ve optimal kazanç tablolamalı GSK yapıları karşılaştırmalı olarak incelenmiştir. Yapılan benzetim çalışmalarında, optimal kazanç tablolamalı GSK’ nın güç sisteminin çalışma noktasının değiştiği durumlarda diğer iki GSK yapısına oranla daha üstün bir performans sergilediği görülmüştür.
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REFERENCES

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