A Power Control Scheme between Quality Control Centers in FRIENDS

FRIENDS(Flexible, Reliable, and Intelligent Electrical eNergy Delivery System)is proposed as a new concept for a future power distribution system. One of the most important characteristics of FRIENDS is that QCC(Quality Control Center)as a new power quality control facility is installed very closely to customers. As one of the congurations of QCCs, AC-type QCC in which several Distributed Generators (DGs) can be installed easily has been proposed by authors. In FRIENDS concept, power exchange control between QCCs is included in fault case in upstream power system for higher reliability and making good use of power of distributed generators. A method to control several QCCs in fault case is proposed, and simulation results are shown in this paper.