SHIMIZU CORPORATION Patent applications |
Patent application number | Title | Published |
20120083927 | Operation Management Apparatus, Operation Management Method, and Operation Management Program - An operation management apparatus includes an air conditioning thermal load prediction unit configured to calculate an air conditioning thermal load predicted value indicating a predicted amount of heat required to adjust temperature to a pre-set temperature on a day-of-prediction, a power generation output prediction processing unit configured to calculate power generation output prediction data indicating a generated power obtained by a generator within the day-of-prediction, and an operation planning unit configured to prepare an air conditioning heat source operation plan, and determines a purchased power and the generated power using the power generation output prediction data to thereby prepare a power facility operation plan indicating a schedule of a power output from the purchased power source and the generator, so that the purchased power per predetermined time supplied from a purchased power source of a commercial power system becomes a target value. | 04-05-2012 |
20120032507 | ELECTRIC POWER SYSTEM - To provide an electric power system capable of adequately controlling the power flow in an AC switch ( | 02-09-2012 |
20110291483 | ELECTRIC POWER SYSTEM - To provide an electric power system capable of adequately controlling the power flow in an AC switch ( | 12-01-2011 |
20110170219 | Islanded Power System with Distributed Power Supply - An islanded power system with a distributed power supply includes a system abnormality detection unit, which outputs an abnormality detection signal when an abnormality in a commercial system is detected; a breaker, which interrupts a supply of power from the commercial system when the abnormality detection signal is input from the system abnormality detection unit; a status detection unit, which outputs a breaker status signal when the breaker's open state is detected; and an electrical storage device, which compensates a fluctuation in load until a rotating machine generator switches to an islanded operation after the supply of power from the commercial system is interrupted by the breaker by starting the supply of power when the breaker status signal is input. | 07-14-2011 |
20110077792 | METHOD FOR CONTROLLING DISTRIBUTED POWER SOURCES - A control method of the present invention is a control method for distributed power sources which systematically controls a plurality of distributed power sources having different responsive capabilities for a load disturbance. The distributed power sources include an electricity storage device. The control method of the present invention includes: obtaining a component to be compensated for using a power source having a responsive capability equal to or lower than that of the electricity storage device based on a difference value between a remaining capacity of the electricity storage device and a target remaining capacity; and compensating for the component to be compensated for using the power source having a responsive capability equal to or lower than that of the electricity storage device. | 03-31-2011 |