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 of a QCC (Quality Control Center) as a new power quality control facility installed very close to customers. As one of the configurations of QCCs, an AC-type QCC in which several distributed generators (DGs) can be installed easily has been proposed by the authors. In the FRIENDS concept, power exchange control between QCCs is included in case of a fault in upstream power systems for higher reliability and making good use of the power of distributed generators. A method to control several QCCs in case of a fault is proposed, and simulation results are presented. © 2005 Wiley Periodicals, Inc. Electr Eng Jpn, 151(2): 20–31, 2005; Published online in Wiley InterScience (www. interscience.wiley.com). DOI 10.1002/eej.20040