Power system load regulation by pumped storage power plants

One of the most suitable choices for storing the electrical energy is pumped storage plant. The system absorbs energy during off-peak and produces energy at peak load. This paper presents a survey on the research and applications of the pumped storage plants based on the published papers in trying to provide a suitable picture of the development of this electric load regulation approach. Moreover, the paper introduces Siah Bishe pumped storage power plant (in Iran) and evaluates it from the operational and technical point of view. In addition, the performance of the Siah Bishe plant is analyzed during a symmetrical three-phase short circuit at machine terminals. Based on the obtained results, it becomes clear that the plant can have great effect on the recovery of the network dynamic and transmitted energy between the synchronous machines installed in the plant and the network. High speed response is the most important factors which improves the small signal stability of the system. Finally, the machine is simulated using Matlab to establish the claims made in this paper.