Hitachi, Ltd.

Masahiro Sekoguchi

Tohru Watanabe

Tomoharu Nakamura

Shigeki Hirasawa

Chihiro Fukui

Tetsuo Yamada

Kosho Aikawa

Masanori Kaminaga

Hisayuki Magoroku

Juichiro Atsumi

Yuichi Nagayama

The present invention relates to a system for controlling microgrid facilities. In particular, the microgrid control system provided is capable of controlling multiple facilities according to characteristics of the facilities in order to achieve economic efficiency, environmental friendliness, and continued operability. The microgrid control system for controlling the operations of the multiple power facilities is provided with: a power supply activation/suspension planning unit that has a prediction unit for predicting outputs or loads of power supply facilities or load facilities and a prediction unit for predicting prediction errors contained therein; and an economical load allocation unit that determines command values related to the distribution of loads to be borne by currently running power supply facilities.

Microgrid control system

Supervisory control equipment for smart grids provided with a plurality of generators and loads and operated in interconnection with a commercial power system through an interconnected circuit breaker, comprising a frequency control ability calculation part for calculating the frequency control ability of the interconnected system by using a total power demand and a bus bar frequency; and an islanding and interconnection detection part for calculating frequency control ability of the commercial power system according to the frequency control ability of the system of the frequency control ability calculation part to discriminate between the interconnected and islanding operations according to the magnitude of the frequency control ability.

Supervisory control method and equipment for smart grids

Growing community of inventors

Tokyo, Japan

Masahiro Sekoguchi