Demonstration Study of Autonomous Demand Area Power System

According to a target of the Japanese government, about 17 million kW distributed power generation (DPG) will be penetrated on the utility system in 2010. it is expected that the current measures to keep power quality, safety and reliability of the grid cannot be adapted any more in such large penetration. CRIEPI proposed the autonomous demand area power system (ADAPS) as a new concept of future demand area distribution system to cope with the large penetration. In the paper, new grid network composition and operation measures using loop-shaped form in ADAPS is introduced. Actual scale demonstration test facility for ADAPS and demonstration test results on proper operation control measure are described. Future works supported by the NEDO for establishment of the new power network techniques are also indicated