Patents by Inventor Takaharu Hiroe

Takaharu Hiroe 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).

  • Patent number: 11858757
    Abstract: In a granular material supply system including a tank that stores granular material, a carrier line through which the granular material flowing out of the tank is carried to a carrier destination, and a cutout line that connects the tank and the carrier line and through which the granular material flowing out of the tank is supplied to the carrier line, a control device includes a density control unit configured to control a density of the granular material on a downstream side of a junction of the cutout line and the carrier line to a set value predetermined and a flow rate control unit configured to control a flow rate of the granular material to be supplied to the carrier destination through the carrier line to a command value instructed by the carrier destination.
    Type: Grant
    Filed: December 21, 2022
    Date of Patent: January 2, 2024
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takaharu Hiroe, Kazunari Ide, Akihiko Saito, Kei Moriyama
  • Publication number: 20230288492
    Abstract: An adjustment power measuring device includes: an acquisition unit for acquiring effective power exchanged at a connection point with an adjustment power providing means capable of providing adjustment power to a first transmission and distribution network; a first calculation unit for calculating a power demand or a power supply for an entire electric power system including the first transmission and distribution network; and a measuring unit for measuring first adjustment power provided to the first transmission and distribution network by the adjustment power providing means on the basis of the effective power and the power demand or the power supply of the electric power system.
    Type: Application
    Filed: November 12, 2021
    Publication date: September 14, 2023
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takaharu Hiroe, Kazunari Ide, Ryo Sase
  • Patent number: 11753961
    Abstract: A startup control device for adjusting a startup schedule during startup of a power generation plant, the device includes: a determining unit which determines, on the basis of a predicted value of a physical quantity corresponding to the elapsed time from startup when the power generation plant has started up on the basis of a prescribed optimal startup schedule, and an observed value of the physical quantity acquired during the startup of the power generation plant, whether the observed value will exceed the predicted value. The device also includes a speed adjusting unit which, if the determining unit determines that the observed value will exceed the predicted value, issues an instruction to decelerate the speed of progress of elapsed time from the startup in the optimal startup schedule; and a startup timer which progresses the elapsed time from the startup at a speed based on the instruction.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: September 12, 2023
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takaharu Hiroe, Kazunari Ide, Ryo Sase, Yoshito Nagahama, Hiroshi Ito, Yukihito Okuda, Nobuhiro Osaki, Shoichiro Hosomi
  • Publication number: 20230268737
    Abstract: A settlement device includes a measured value acquisition unit to acquire a measured value of active power transmitted or received at a connection point of a power transmission and distribution network and a regulating power providing means capable of providing regulating power to the power transmission and distribution network and a measured value of a frequency at the connection point; a regulating power measurement unit to measure regulating power at the connection point on the basis of the acquired measured value of the active power and the acquired measured value of the frequency; a regulating power amount calculation unit to calculate an amount of regulating power of a prescribed period at the connection point by integrating the regulating power over time; a power amount acquisition unit to acquire an amount of power transmitted or received in the prescribed period at the connection point; and a settlement unit.
    Type: Application
    Filed: August 30, 2021
    Publication date: August 24, 2023
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takaharu Hiroe, Kazunari Ide, Ryo Sase
  • Publication number: 20230202778
    Abstract: In a granular material supply system including a tank that stores granular material, a carrier line through which the granular material flowing out of the tank is carried to a carrier destination, and a cutout line that connects the tank and the carrier line and through which the granular material flowing out of the tank is supplied to the carrier line, a control device includes a density control unit configured to control a density of the granular material on a downstream side of a junction of the cutout line and the carrier line to a set value predetermined and a flow rate control unit configured to control a flow rate of the granular material to be supplied to the carrier destination through the carrier line to a command value instructed by the carrier destination.
    Type: Application
    Filed: December 21, 2022
    Publication date: June 29, 2023
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takaharu Hiroe, Kazunari Ide, Akihiko Saito, Kei Moriyama
  • Publication number: 20230146834
    Abstract: A control device includes: a variation command unit that changes a command value, which is a command value sent to a system including a compressor, affecting an operating state of the compressor; a proportional coefficient calculation unit that calculates a proportional coefficient of a variation in a parameter, which indicates a state of the compressor or an electric motor that drives the compressor when the system is operated based on the command value, with respect to the command value; and a control unit that performs control for avoiding or suppressing surging in the compressor, based on a value of the proportional coefficient.
    Type: Application
    Filed: November 2, 2021
    Publication date: May 11, 2023
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takaharu Hiroe, Minoru Matsuo, Tatsuo Ishiguro, Akihiro Nakaniwa, Yasunori Tokimasa
  • Patent number: 11642865
    Abstract: The corrugated cardboard sheet manufacturing system including a production state information acquisition device; a control value information acquisition device for acquiring control value information of a control element of a corrugated cardboard sheet manufacturing apparatus exerting an influence on the warp of a corrugated cardboard sheet; a warp information acquisition device for acquiring information of a warp amount of the corrugated cardboard sheet; a storage device for storing a performance data set including at least production state information, the control value information, and the warp information; a pre-control table storing a standard control value of the control element set in accordance with a production state; a correction table for correcting the standard control value to set an initial control value; an update device for updating the correction table by reflecting the performance data set; and control device for performing feedforward control of the control element using the initial control
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: May 9, 2023
    Assignee: MITSUBISHI HEAVY INDUSTRIES MACHINERY SYSTEMS, LTD.
    Inventors: Koki Tateishi, Akira Ogino, Yusuke Hazui, Hiroshi Ishibuchi, Takaharu Hiroe
  • Publication number: 20230126831
    Abstract: A control parameter optimization device is provided with: a plant model configured to calculate a control command value by a control device and a process quantity of a plant; a control parameter updating unit configured to update a control parameter used for calculating the control command value in the plant model, on the basis of an objective function calculated based on a calculation result of the process quantity in the plant model; and a structural model configured to calculate a clearance between a stationary member and a rotating member in the rotating machine, on the basis of the process quantity from the plant model. The control parameter updating unit is configured to search for an optimal control parameter within a range where the clearance calculated by the structural model satisfies a constraint condition.
    Type: Application
    Filed: February 18, 2021
    Publication date: April 27, 2023
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Yoshito Nagahama, Takaharu Hiroe, Kazunari Ide, Ryo Sase, Hiroshi Ito, Norikazu Tezuka, Yukihito Okuda, Nobuhiro Osaki, Shota Mochizuki, Shoichiro Hosomi
  • Publication number: 20230125492
    Abstract: A gas turbine includes a rotor that is rotatable about an axis, a casing configured to cover the rotor in a circumferential direction and having an annular space therein, a compressor configured to generate a high pressure of compressed air obtained by compressing external air and send the compressed air into the casing, a plurality of combustors disposed in the casing at equal intervals in the circumferential direction of the rotor and configured to combust the compressed air and fuel taken in from the casing to generate a combustion gas, a turbine driven by the combustion gas, and an air introduction passage defined by a partition plate configured to divide the space in the casing in the circumferential direction of the rotor and an inner circumferential surface of the casing and configured to introduce the compressed air in the casing into the combustor.
    Type: Application
    Filed: October 20, 2022
    Publication date: April 27, 2023
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takaharu Hiroe, Kazunari Ide
  • Publication number: 20230083211
    Abstract: A control apparatus 20 that is configured to control driving of a power generation apparatus including a motor and a power generator, the control apparatus including a processor 200 executing: a process of calculating a first adjustment force command value used for controlling the motor in accordance with a deviation between an observed value and a reference value of a rotation speed of the power generator; a process of calculating a correction value for compensating for a delay of an electric output of the power generator; and a process of calculating a correction value for compensating for a delay of an electric output of the power generator; and a process of calculating a second adjustment force command value used for controlling the motor by adding the first adjustment force command value and the correction value.
    Type: Application
    Filed: November 21, 2022
    Publication date: March 16, 2023
    Inventors: Takaharu HIROE, Kazunari IDE, Ryo SASE
  • Patent number: 11537158
    Abstract: A control apparatus 20 that is configured to control driving of a power generation apparatus including a motor and a power generator, the control apparatus including a processor 200 executing: a process of calculating a first adjustment force command value used for controlling the motor in accordance with a deviation between an observed value and a reference value of a rotation speed of the power generator; a process of calculating a correction value for compensating for a delay of an electric output of the power generator; and a process of calculating a correction value for compensating for a delay of an electric output of the power generator; and a process of calculating a second adjustment force command value used for controlling the motor by adding the first adjustment force command value and the correction value.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: December 27, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takaharu Hiroe, Kazunari Ide, Ryo Sase
  • Publication number: 20220390263
    Abstract: A disturbance estimation device includes: an acquisition unit configured to acquire a measurement value measured by a sensor provided in a controlled object; and an estimating unit configured to calculate a variance-covariance matrix of a measurement vector including the measurement value as an element, perform singular value decomposition on the variance-covariance matrix to calculate a singular vector of a maximum singular value, and estimate a disturbance that occurs in the controlled object based on the singular vector.
    Type: Application
    Filed: May 5, 2022
    Publication date: December 8, 2022
    Inventors: Takaharu HIROE, Kazunari IDE, Ryo SASE
  • Patent number: 11500965
    Abstract: An abnormality detection device that detects an abnormality of a target device includes a processor that executes a process of acquiring a plurality of types of measured values of the target device, a process of calculating Mahalanobis distances of the acquired plurality of types of measured values, a process of extracting the plurality of Mahalanobis distances calculated in a past predetermined period from a point in time of evaluation of the target device and calculating a moving average value of a square value of each of the extracted Mahalanobis distances, and a process of determining whether or not an abnormality has occurred in the target device on the basis of the moving average value.
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: November 15, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takaharu Hiroe, Kazunari Ide, Ryo Sase
  • Publication number: 20220316363
    Abstract: Provided is a startup control device for adjusting a startup schedule during startup of a power generation plant. This startup control device is provided with: a determining unit which, for a prescribed physical quantity that restricts the startup of the power generation plant, determines, on the basis of a predicted value of a physical quantity corresponding to the elapsed time from startup when the power generation plant has started up on the basis of a prescribed optimal startup schedule, and an observed value of the physical quantity acquired during the startup of the power generation plant, whether the observed value will exceed the predicted value; a speed adjusting unit which, if the determining unit determines that the observed value will exceed the predicted value, issues an instruction to decelerate the speed of progress of elapsed time from the startup in the optimal startup schedule; and a startup timer which progresses the elapsed time from the startup at a speed based on the instruction.
    Type: Application
    Filed: July 22, 2020
    Publication date: October 6, 2022
    Inventors: Takaharu HIROE, Kazunari IDE, Ryo SASE, Yoshito NAGAHAMA, Hiroshi ITO, Yukihito OKUDA, Nobuhiro OSAKI, Shoichiro HOSOMI
  • Patent number: 11333580
    Abstract: An anomaly detecting device includes: a singular value decomposition unit configured to perform singular value decomposition of a variance-covariance matrix of a measured value matrix y0 composed of measured values acquired by a plurality of sensors in a time period considered to be normal, to thereby calculate a singular vector U and a singular value matrix S; an anomaly determination unit configured to apply the singular vector U and the singular value matrix S to a measured value matrix yt to be evaluated and which is acquired in an arbitrary time period to determine whether an anomaly is present from a result of application; and an anomalous part identification unit configured to, when the measured value matrix yt is determined to be anomalous, identify an anomalous part based on a diagonal element of a matrix obtained in association with the measured value matrix yt.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: May 17, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Ryo Sase, Takaharu Hiroe
  • Patent number: 11334414
    Abstract: An abnormality detecting apparatus that is configured to detect a presence or absence of an abnormality in a rotating machine includes a processor that is configured to execute a measured value acquisition process of acquiring, on the basis of a detection signal output from a vibration sensor that is configured to measure vibration caused by rotation of the rotating machine, a measured value including an amplitude and a phase of the vibration; a Mahalanobis distance calculation process of calculating a Mahalanobis distance of the measured value acquired at a time point at which the rotating machine is evaluated on the basis of a unit space configured with a plurality of measured values acquired at a plurality of past time points; and a determination process of determining that an abnormality has occurred in the rotating machine in a case where the calculated Mahalanobis distance exceeds a predetermined threshold value.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: May 17, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takaharu Hiroe, Kazunari Ide, Yoshikatsu Ikawa, Ryo Sase
  • Patent number: 11328371
    Abstract: An adjusting power measuring apparatus includes: a processor that: acquires an active power measurement value of active power exchanged at a connection point between a targeted power grid and an adjusting power supply source that supplies adjusting power to the targeted power grid, acquires a frequency measurement value of frequency at the connection point, calculates, based on the active power measurement value and the frequency measurement value, a first adjusting power coefficient indicating a degree of influence that fluctuation in the active power has on fluctuation in the frequency, calculates, based on the first adjusting power coefficient and a fluctuation measurement value of the fluctuation in the frequency, the adjusting power supplied from the adjusting power supply source to the targeted power grid, and determines, based on the calculated adjusting power, compensation to be paid to an owner of the adjusting power supply source.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: May 10, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takaharu Hiroe, Kazunari Ide
  • Patent number: 11300058
    Abstract: A signal processing apparatus includes a CPU which executes an input step of receiving an input of a measurement value of a target parameter at a first time, in which noise is superimposed on a true value of the target parameter, a calculation step of calculating a variation amount of the measurement value of the target parameter at the first time, based on a maximum likelihood estimate of the target parameter at a second time and calculating a maximum likelihood estimate of the variation amount, and an output step of outputting a value obtained by adding the maximum likelihood estimate of the variation amount to the maximum likelihood estimate of the target parameter at the second time, as a maximum likelihood estimate of the target parameter at the first time.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: April 12, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takaharu Hiroe, Tadashi Murata
  • Patent number: 11293305
    Abstract: A control device is configured to control a temperature of a shaft seal portion around a rotating shaft of a rotating machine by adjusting an amount of cooling air to be supplied to the shaft seal portion. The control device is configured to calculate a sensitivity indicated using the temperature of the shaft seal portion with respect to a flow rate of the cooling air supplied to the shaft seal portion and control the flow rate of the cooling air so that the sensitivity has a predetermined target value based on the sensitivity which has been calculated. When the sensitivity is calculated, the flow rate is varied in a predetermined range having a certain flow rate as a center. The sensitivity is calculated from variation in the temperature of the shaft seal portion with respect to variation in the flow rate.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: April 5, 2022
    Assignee: MITSUBISHI POWER, LTD.
    Inventors: Takaharu Hiroe, Satoshi Hada, Kazunari Ide, Koki Tateishi, Ryuji Takenaka, Koshiro Fukumoto, Shinichi Yoshioka
  • Publication number: 20210286324
    Abstract: A compensator includes a processor, and a storage device that is connected to the processor and stores measured input values that are measured values of an input to a subject to control and measured output values that are measured values of an output from the subject to control. The processor performs processing for identifying, from the measured input values and the measured output values, a first coefficient configuring a finite impulse response filter, processing for determining, based on the first coefficient, a second coefficient configuring an infinite impulse response filter, and identifying an inverse system for the subject to control, the inverse system including the second coefficient and a part of the first coefficient, and processing for estimating an input value to be input to the subject to control from a weighted sum of target values of the output.
    Type: Application
    Filed: January 29, 2021
    Publication date: September 16, 2021
    Inventors: Takaharu HIROE, Kazunari IDE, Ryo SASE