%0 Journal Article %A Shewit Tsegaye and Kinde A. Fante %D 2016 %J International Journal of Energy and Power Engineering %B World Academy of Science, Engineering and Technology %I Open Science Index 120, 2016 %T Analysis of Synchronous Machine Excitation Systems: Comparative Study %U https://publications.waset.org/pdf/10007291 %V 120 %X This paper presents the comparison and performance evaluation of synchronous machine excitation models. The two models, DC1A and AC4A, are among the IEEE standardized model structures for representing the wide variety of synchronous machine excitation systems. The performance evaluation of these models is done using SIMULINK simulation software. The simulation results obtained using transient analysis show that the DC1A excitation system is more reliable and stable than AC4A excitation system. %P 1492 - 1496