Karrar, Abdelrahman A.
Disfani, Vahid R.; Kobet, Gary L.
College of Engineering and Computer Science
University of Tennessee at Chattanooga
Place of Publication
Voltage Collapse is instability of a heavily loaded electric power system, which leads to declining voltages and blackout, and it is typically associated with reactive power limitations of the power system. Therefore, knowledge of the critical loading point is vital to ensure a secure mode of operation for the power system. Over the years, different methods were proposed in the literature to identify proximity to voltage collapse. However, these techniques were derived utilizing only the voltage limitation of the load buses. Voltage collapse is often interlinked with static transfer stability limit. In this work, different voltage collapse modes are addressed and a new algorithm that takes into account both load bus voltage and generator bus angle behavior is proposed to estimate the collapse point. The proposed method was examined on several IEEE test systems. Also, superiority of the proposed method in comparison with the other techniques was proven.
M. S.; A thesis submitted to the faculty of the University of Tennessee at Chattanooga in partial fulfillment of the requirements of the degree of Master of Science.
Electric power systems -- Reliability; Electric power system stability; Electric power failures -- Prevention
ix, 54 leaves
Ahmed, Areeg Abubakr Ibrahim, "Voltage collapse modes in power networks" (2019). Masters Theses and Doctoral Dissertations.
Dept. of Electrical Engineering