It is of great significance to install Energy storage
systems (ESS) in wind power plants because the electric power
generated by wind turbines is highly unpredictable due to stochastic
nature of wind and affects both the power quality and power systems
planning. By controlling output of wind power plants and providing
necessary support to the power system, ESS can play a very vital role
in wind power applications to increase penetration of wind power in
the present power system. In this paper various systems being used at
present, for storing electrical energy generated by wind power plant
along with their operating principle, main characteristics of ESS
suitable for static applications according to literature review, have
been discussed.