抄録
Recently, the world-wide deregulation of the electric power industry is progressing. Further, it is also expected that a lot of distributed generation facilities and energy storage systems will be installed at the end point of the power systems. Therefore, the future power system is required to be able to cope with these various qualities of power in the deregulated situation. The authors have proposed a concept of FRIENDS (Flexible, Reliable and Intelligent ENergy Delivery System) as a new distribution system that copes with a new framework of the electric power business in the near future. The most typical thing of FRIENDS is introducing new equipment; Quality Control Centers (QCC) between distribution substation and customers. In this paper, the authors propose a concrete interior structure and investigate some control ways for realizing unbundling power quality supply and power conditioning using the proposed UPQC type QCC. The effectiveness of the proposed method is confirmed through the instantaneous value analysis using PSCAD/EMTDC.
