A study on applications of energy storage for the wind power operation in power systems

Energy storage system (ESS) has been studied as a high-tech solution for managing power flows from wind turbine generator (WTG), and making them be competitive energy sources without putting power systems at risk. This paper illustrates possible applications of the energy storage for the wind power operating in power systems focusing on its short-duration prospective. Employing a sample power system, the control effect of ESS for suppressing the power flow fluctuation of the wind farm is studied, and the different configurations for connecting ESS to the multiple WTG is also compared. In addition, for the case when the wind power supplies a significant part of the load in the sample power systems, ESS application for mitigating the speed variations of other generators caused by the wind gust is studied. The response of the WTG/ESS to a system disturbance is also studied. This is an ongoing research and all results are preliminary.