Power Quality Enhancement for Smart Distribution System Using Superconducting Magnetic Energy Storage Unit

This paper has developed the superconducting magnetic energy storage (SMES) unit to improve the power quality and transient stability behaviour of a large industry facility in a smart grid. The connected transmission line with the utility has tripping system by using the under frequency relays, this tripping system has been modified to prevent cascaded collapse of the power system in case of occurrence of utility power system external fault. Fault simulated has been performed to explore the accuracy of the transient stability analysis. To improve the power quality, SMES unit has been installed in the smart distributed system. The sensitivity analysis of SMES unit is applied to achieve better system responses. SMES unit with frequency changing as feedback signal to active power control is also used to improve the electric power fluctuation and help the utility in maximum demand times. Also improve the power quality of the system and reduce the economic losses of the facility.