Abstract
Adjustable-speed pumped storage generating systems with large capacity have been newly installed in power systems with recent progress in technologies of power electronics as its setting. Many papers have been published in which the enhancement of power system stability by fast control ability of power and voltage of these new generating systems has been described. However, studies have not been reported until now about the dynamic stability of separated power system that consists of a load and an adjustable-speed pumped storage generating system.
New analytical models were developed in order to analyze and understand dynamic stability of a separated power system that consists of a load and an adjustable-speed pumped storage generating system. Results of studies on dynamic characteristics of the control systems, especially voltage control system, applied in the new generating system are shown with numerical examples.
