Fault detection algorithm for an UPS operation of power-station

The use for the storage system of battery energy continues to increase by using smart grid for effective use and management of electricity. The existing energy storage system has a function of energy transfer that used off-peak electricity by lead storage battery during the daytime^[1]. In case of using lithium polymer battery which has high energy density and large discharging current instead of lead storage battery, additional functions can be realized such as the peak load compensation or UPS because it has large electricity to be dealt during short time in comparison of same capacity. This study proposes the UPS mode detection algorithm for next generation power station. In case of blackout of system, next generation power system can recognize it and change the mode to UPS dealing with loading electricity. Blackout and other accidents were simulated.