Interior Structure of Quality Control Center at the Low Voltage Side for the Customized Power Quality Service in FRIENDS

Recently the world wide deregulation trend of the electric power industry is progressing. In the deregulated power systems, it is expected that a lot of dispersed-type generation facilities and energy storage systems will be installed at the end point of the power system. Further, it is also expected that the consumer's requirements for the price, the reliability or the power quality will also become more diverse by this trend. Therefore, the future power system must change dramatically in order to cope with these various requirements. By the above background, the authors have proposed Flexible Reliable and Intelligent Electrical eNergy Delivery Systems, FRIENDS as one of the future electric power distribution system. In order to realize FRIENDS, it is indispensable to design the concrete interior structure of the key facility called Quality Control Center. This paper proposes the interior structure and the operation scheme of Quality Control Center from the viewpoint of the customized power quality service which is one of the most important objectives of FRIENDS. This paper also confirms the validity of the proposed structure and the operation scheme through momentary analysis using PSCAD/EMTDC.