Control of BLDC Machine drive for Flywheel Energy Storage in DC Micro-grid Applications

Energy storage is crucial in the current microgrid scenario. An Energy storage system is essential to store energy whenever the rate of energy generated not balanced with the demand. In this paper Flywheel Energy Storage System (FESS) which works on the principle of kinetic energy storage driven by BLDC machine is considered. A three phase bi-directional converter is used for regulating the stored energy of the reversible electro-mechanical system (motor/generator). Suitable control scheme for BLDC drive is discussed with the application in DC Microgrid with high fluctuations in generation and load thus improving its reliability.