Short-term Balanced Supply and Demand Control System for Microgrids

OVERVIEW: There is a growing demand for renewable energy resources with the rise of concern for the environment. Many fear that the increasing distributed energy resources will degrade the power quality of the distribution systems. While microgrids can reduce the amount of degradation, they can also operate almost completely independently, thus complicating the balancing of supply and demand control in the grid. To solve this problem, we have developed a short-term balanced supply and demand control system. The system adopts a highly accurate method for correcting the accumulated deviation in the power generation targets setting, based on the short-term demand forecast. When we examined the verification using a real-time simulator, which simulates distributed resources, we confirmed the ability of the microgrid and distributed resources to balance supply and demand loads for short periods of time. The developed system enabled the supply and demand balance term to be adjusted about 1/3 of the conventional systems. Yasunori Ono Noriyuki Uchiyama Tomoharu Nakamura Yasunobu Fujita