Patents by Inventor Eisuke Shimoda
Eisuke Shimoda has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9031703Abstract: 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.Type: GrantFiled: March 11, 2011Date of Patent: May 12, 2015Assignee: Shimizu CorporationInventors: Takuji Nakamura, Toshihiro Yamane, Eisuke Shimoda, Kimio Morino
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Patent number: 8896151Abstract: An electric power system includes: an uninterruptible power supply including an AC switch provided between a commercial power supply and an output part, a secondary battery, and an inverter provided between the AC switch and secondary battery; an important load connected to the output part; a distributed power supply connected to the output part; total load power consumption detection section detecting the power consumption of all loads including the important load; charge/discharge power detection section detecting charge/discharge power of the secondary battery; output power detection section detecting the output power of the distributed power supply; important load power consumption detection section detecting the power consumption of the important load; and a controller that inputs thereto detection values from the total load power consumption detection section, charge/discharge detection section, output power detection section, and important load power consumption detection section and outputs a controlType: GrantFiled: November 11, 2010Date of Patent: November 25, 2014Assignee: Shimizu CorporationInventors: Toshihiro Yamane, Shigeo Numata, Eisuke Shimoda, Morihiro Kinoshita
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Patent number: 8860247Abstract: To provide an electric power system capable of adequately controlling the power flow in an AC switch (120) constituting an interruptible power supply, an electric power system according to the present invention includes: an uninterruptible power supply (100) including an AC switch (120) provided between a commercial power supply (200) and an output part (102), a secondary battery (130), and an inverter (135) provided between the AC switch (120) and secondary battery (130); an important load (150) connected to the output part (102); a photovoltaic power supply (140) connected to the output part (102); an electric power detection section (181) that detects the power consumption of all loads including the important load (150); an electric power detection section (131) that detects charge/discharge power of the secondary battery (130); and a controller (110) that inputs thereto detection values from the electric power detection section (181) and electric power detection section (131) and outputs a control commandType: GrantFiled: November 11, 2010Date of Patent: October 14, 2014Assignee: Shimizu CorporationInventors: Toshihiro Yamane, Shigeo Numata, Eisuke Shimoda, Morihiro Kinoshita
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Patent number: 8767362Abstract: 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.Type: GrantFiled: August 7, 2009Date of Patent: July 1, 2014Assignee: Shimizu CorporationInventors: Toshihiro Yamane, Shigeo Numata, Kimio Morino, Eisuke Shimoda
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Patent number: 8401712Abstract: 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.Type: GrantFiled: March 16, 2010Date of Patent: March 19, 2013Assignees: Shimizu Corporation, The University of TokyoInventors: Eisuke Shimoda, Shigeo Numata, Toshihiro Yamane, Jumpei Baba
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Publication number: 20120083927Abstract: 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.Type: ApplicationFiled: March 11, 2011Publication date: April 5, 2012Applicant: SHIMIZU CORPORATIONInventors: Takuji Nakamura, Toshihiro Yamane, Eisuke Shimoda, Kimio Morino
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Publication number: 20120032507Abstract: To provide an electric power system capable of adequately controlling the power flow in an AC switch (120) constituting an interruptible power supply, an electric power system according to the present invention includes: an uninterruptible power supply (100) including an AC switch (120) provided between a commercial power supply (200) and an output part (102), a secondary battery (130), and an inverter (135) provided between the AC switch (120) and secondary battery (130); an important load (150) connected to the output part (102); a photovoltaic power supply (140) connected to the output part (102); an electric power detection section (181) that detects the power consumption of all loads including the important load (150); an electric power detection section (131) that detects charge/discharge power of the secondary battery (130); and a controller (110) that inputs thereto detection values from the electric power detection section (181) and electric power detection section (131) and outputs a control commandType: ApplicationFiled: November 11, 2010Publication date: February 9, 2012Applicant: SHIMIZU CORPORATIONInventors: Toshihiro Yamane, Shigeo Numata, Eisuke Shimoda, Morihiro Kinoshita
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Publication number: 20110291483Abstract: To provide an electric power system capable of adequately controlling the power flow in an AC switch (120) constituting an interruptible power supply, an electric power system according to the present invention includes: an uninterruptible power supply (100) including an AC switch (120) provided between a commercial power supply (200) and an output part (102), a secondary battery (130), and an inverter (135) provided between the AC switch (120) and secondary battery (130); an important load (150) connected to the output part (102); a photovoltaic power supply (140) connected to the output part (102); an electric power detection section (181) that detects the power consumption of all loads including the important load (150); an electric power detection section (131) that detects charge/discharge power of the secondary battery (130); an electric power detection section (141) that detects the output power of the photovoltaic power supply (140); an electric power detection section (151) that detects the power conType: ApplicationFiled: November 11, 2010Publication date: December 1, 2011Applicant: SHIMIZU CORPORATIONInventors: Toshihiro Yamane, Shigeo Numata, Eisuke Shimoda, Morihiro Kinoshita
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Publication number: 20110170219Abstract: 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.Type: ApplicationFiled: August 7, 2009Publication date: July 14, 2011Applicant: SHIMIZU CORPORATIONInventors: Toshihiro Yamane, Shigeo Numata, Kimio Morino, Eisuke Shimoda
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Publication number: 20110077792Abstract: 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.Type: ApplicationFiled: March 16, 2010Publication date: March 31, 2011Applicants: SHIMIZU CORPORATION, THE UNIVERSITY OF TOKYOInventors: Eisuke SHIMODA, Shigeo NUMATA, Toshihiro YAMANE, Jumpei BABA