抄録
This paper proposes a new concept of an electric power delivery system of future decade. The power delivery network consists from a set of meshed networks spread out every demand side block (city or town). On the end point of the power line network, a quality improvement facilities (be referred to as “quality improvement centers”) are installed, and each consumer can select arbitrary quality of the electricity. Thus the system can achieve the multi-menu-services and non-interrupted power supply. The system contains the small scale energy storage and dispersed small scale power generation systems. A main circuit breakers consists of power electronics devices, and communication networks are fully installed so as to control the power electronics devices or power flow according to the systems situations or the fault situations. The communication network also control the demand side management. From the above, the proposed power delivery network is flexible and reliable. The intelligent facilities (computers) are installed in the control centers as well as in the quality improvement centers. They control the system as the most energy conservative one. In this paper, the system is named as FRIENDS (Flexible, Reliable and Intelligent Electrical eNergy Delivery System). The conclusion of this paper summarizes the major research areas which must be completed so as to realize the system.
