Experimental verification of deadbeat control for unified power flow controller

Flexible AC Transmission System (FACTS) component is available to manage a number of varied situations of the power line. The Unifier Power Flow Controller (UPFC) as one of the FACTS is used in order to keep conditions of the power line. The UPFC consists of two inverters. One is connected in parallel to the power line, the other is connected in series. In parallel side, the reactive power can be compensated to improve the power factor. In series side, the voltage drop can be compensated to maintain proper line voltage. In these operations, the deadbeat control is applied for advantages of quick and accurate response. A principle of the control method and experimental results are presented to verify the effectiveness of the UPFC.