Abstract: This paper presents a survey of articles, books and reports, which articulate the recent trends and aspects of Security Constrained Economic Dispatch (SCED). The period under consideration is 2008 through 2018. This is done to provide an up-to-date review of the recent major advancements in SCED, the state-of-the-art since 2008, identify further challenging developments needed in smarter grids, and indicate ways to address these challenges. This study consists of three areas of interest, which are very important and relevant for articulating the recent trends of SCED. These areas are: (i) SCED of power system with integrated renewable energy sources (IRES), (ii) SCED with post contingency corrective actions and (iii) Artificial intelligence based SCED.
Abstract: 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.