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Akira Yasugi patents

Recent bibliographic sampling of Akira Yasugi patents listed/published in the public domain by the USPTO (USPTO Patent Application #,Title):



04/18/13 - 20130093186 - Wind-power generation system and operation control method therefor
An object is to improve the accuracy of power factor adjustment. Power-factor command values corresponding to individual wind turbines are determined by correcting a predetermined power-factor command value for an interconnection node using power factor correction levels set for the individual wind turbines....
Inventors: Shinji Arinaga, Takatoshi Matsushita, Tsuyoshi Wakasa, Masaaki Shibata, Akira Yasugi

11/15/12 - 20120286510 - Wind power generation system and method of controlling the same
Provided is a wind power generation system intending to suppress an increase of torque when a voltage in a utility grid is restored, and to reduce a load to devices due to the torque. The blade control unit controls the pitch angle of the wind turbine blades such that a...
Inventors: Shinji Arinaga, Tsuyoshi Wakasa, Takatoshi Matsushita, Akira Yasugi, Masaaki Shibata (Mitsubishi Heavy Industries, Ltd.)

02/09/12 - 20120035774 - Generating apparatus and control method thereof
Voltage of a utility grid is reliably and swiftly restored, which decreased due to a utility grid failure or the like, to reference voltage. A generator is connected to a utility grid. A voltage detecting section detects voltage of a utility grid. A control section determines reactive current corresponding to...
Inventors: Akira Yasugi (Mitsubishi Heavy Industries, Ltd.)

12/29/11 - 20110320052 - Utility grid stabilization apparatus and method,as well as wind power generating system
It is an object to supply stable reactive power without requiring large-scale civil engineering work. The invention provides a utility grid stabilization apparatus to be applied to a generating system including a generator having a squirrel-cage induction generator to generate electric power using natural energy and a connection switching section...
Inventors: Akira Yasugi (Mitsubishi Heavy Industries, Ltd.)

12/01/11 - 20110291414 - Wind power generation system and method of controlling the same
Provided is a wind power generation system intending to suppress an increase of torque when a voltage in a utility grid is restored, and to reduce a load to devices due to the torque. The blade control unit controls the pitch angle of the wind turbine blades such that a...
Inventors: Shinji Arinaga, Tsuyoshi Wakasa, Takatoshi Matsushita, Akira Yasugi, Masaaki Shibata (Mitsubishi Heavy Industries, Ltd.)

08/25/11 - 20110204630 - Wind power generation system and operation control method thereof
The object is to reduce an output fluctuation in an interconnection node. Provided is an operation control method of a wind power generation system including a step of obtaining the output data of each wind turbine, a step of determining a correlation between output fluctuations of adjacent wind turbines by...
Inventors: Shinji Arinaga, Takatoshi Matsushita, Tsuyoshi Wakasa, Masaaki Shibata, Akira Yasugi (Mitsubishi Heavy Industries, Ltd.)

06/30/11 - 20110156388 - Wind turbine generator system
It is an object to provide a wind turbine generator system that can promptly restore the system voltage in the event of, for example, a low voltage phenomenon. A controller 21 detects the power factor state of a generator when a normal operation mode is switched to a low-voltage control...
Inventors: Akira Yasugi, Takatoshi Matsushita

05/12/11 - 20110112697 - Wind turbine generator system and operation control method therefor
An object is to improve the accuracy of reactive power adjustment. Reactive-power command values corresponding to individual wind turbines are determined by correcting a predetermined reactive-power command value for an interconnection node A using reactive power correction levels set for the individual wind turbines....
Inventors: Shinji Arinaga, Takatoshi Matsushita, Tsuyoshi Wakasa, Masaaki Shibata, Akira Yasugi (Mitsubishi Heavy Industries, Ltd.)

03/31/11 - 20110077787 - Wind turbine generator, method of controlling the same, and wind turbine generating system
Damage is prevented on electric devices in a case where a generator is installed in a cold weather. A wind turbine generator includes a power supply unit connected to a utility grid via a switch gear; a utility grid voltage measuring unit provided between the power supply unit and the...
Inventors: Akira Yasugi (Mitsubishi Heavy Industries, Ltd.)

03/31/11 - 20110074152 - Wind turbine generator and method of controlling the same
In a case where a request for changing a maximum value of active power and a newly defined maximum value of active power are received from the utility grid side, a maximum value of an active power demand value set to a rated value is changed to the newly defined...
Inventors: Akira Yasugi (Mitsubishi Heavy Industries, Ltd.)

Mitsubishi Heavy Industries, Ltd.

Archived*
(*May have duplicates - we are upgrading our archive.)

20110320052 - Utility grid stabilization apparatus and method,as well as wind power generating system


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The bibliographic references displayed about Akira Yasugi's patents are for a recent sample of Akira Yasugi's publicly published patent applications. The inventor/author may have additional bibliographic citations listed at the USPTO.gov. FreshPatents.com is not associated or affiliated in any way with the author/inventor or the United States Patent/Trademark Office but is providing this non-comprehensive sample listing for educational and research purposes using public bibliographic data published and disseminated from the United States Patent/Trademark Office public datafeed. This information is also available for free on the USPTO.gov website. If Akira Yasugi filed recent patent applications under another name, spelling or location then those applications could be listed on an alternate page. If no bibliographic references are listed here, it is possible there are no recent filings or there is a technical issue with the listing--in that case, we recommend doing a search on the USPTO.gov website.

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