Patents Assigned to Toshiba Mitsubishi-Electric Industrial Systems Corporation
  • Publication number: 20210167596
    Abstract: According to an embodiment of the invention, a control device is provided and controls a power converter that can be connected to a terminal of a direct current power transmission system transmitting power according to a current command value that is set. The control device includes a first characteristic setter having a first characteristic preset. When the power converter is set at a power transmission end of the direct current power transmission system, the first characteristic outputs an output terminal voltage for the power converter. The output terminal voltage corresponds to a current of a current control based on a current command value set at a power receiving end of the direct current power transmission system. The output terminal voltage of the first characteristic monotonously decreasing with respect to the current of the current control.
    Type: Application
    Filed: May 31, 2018
    Publication date: June 3, 2021
    Applicant: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventors: Keisuke HATTORI, Tomohisa OKAMI
  • Patent number: 11018495
    Abstract: A control device for an electric power conversion apparatus, the control device detecting occurrence of an earth fault in a direct-current path in a system in which the direct-current path between a solar cell module and an electric power conversion apparatus is grounded, is provided. The control device for the electric power conversion apparatus includes: a grounding control unit configured to, in a system in which a direct-current path between a solar cell module and an electric power conversion apparatus is grounded via a switch, control a switch; and an earth fault determination unit configured to, when the switch is open under the controlled of the grounding control unit, detect whether or not an earth fault has occurred in the direct-current path.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: May 25, 2021
    Assignee: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventors: Yoshihiro Tawada, Ruben Alexis Inzunza Figueroa, Tatsuaki Ambo, Masahiro Kinoshita
  • Publication number: 20210151910
    Abstract: An insulating cover includes a cover main body and a pair of supporters. The cover main body is open in one direction along a radial direction of a tubular portion of a crimp terminal. The cover main body is configured to be disposed outside a terminal base. The cover main body is configured not to cover at least a region of a plate portion of the crimp terminal. The region is configured to face an electrical connection portion of the terminal base. The cover main body is configured to cover the tubular portion. The pair of supporters is configured to face at least one of an electrical wire and the tubular portion on a side opposite to the cover main body.
    Type: Application
    Filed: June 1, 2018
    Publication date: May 20, 2021
    Applicant: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventor: Keisuke INAMASA
  • Publication number: 20210152104
    Abstract: A thyristor starter accelerates a synchronous machine from a stop state to a predetermined rotation speed by sequentially performing a first mode of performing commutation of an inverter by intermittently setting DC output current of a converter to zero and a second mode of performing commutation of the inverter by induced voltage of the synchronous machine. In the thyristor starter, during a first time period from start of performance of the second mode to arrival of the induced voltage of the synchronous machine at a first voltage value, a phase control angle of the inverter is changed such that a value thereof becomes larger as a rotation speed of the synchronous machine becomes higher.
    Type: Application
    Filed: June 21, 2017
    Publication date: May 20, 2021
    Applicant: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventors: Hironori KAWAGUCHI, Akinobu ANDO, Hiroshi OGINO, Yasuaki MATSUMOTO
  • Publication number: 20210146415
    Abstract: When an opposite direction shift for obtaining a required equivalent roll crown and a same direction shift for wear dispersion are used in combination, a difference occurs in the roll gap at both edge portions in the width direction of a rolling target material. Therefore, the difference between a work-side screw down position and a drive-side screw down position is changed so that the roll gap difference between both the edge portions in the width direction of the rolling target material is made close to zero. As a result, the distance between the work roll shafts on a work side and a drive side is changed, so that the roll gap difference at both ends in the width direction of the rolling target material approaches zero. Therefore, the wear of the work rolls can be dispersed while maintaining the equivalent roll crown.
    Type: Application
    Filed: October 31, 2017
    Publication date: May 20, 2021
    Applicant: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventor: Mitsuhiko SANO
  • Publication number: 20210152101
    Abstract: A power conversion device includes a three-phase voltage inverter, a two-phase/three-phase converter, a tertiary harmonic wave generator, an adder, a PWM controller, and a tertiary harmonic wave amplitude determining unit. The tertiary harmonic wave generator generates a sinusoidal tertiary harmonic wave signal synchronized with three-phase voltage command signals and having a frequency which is three times as high as that of the three-phase voltage command signal. Further, the tertiary harmonic wave generator includes a tertiary harmonic wave amplitude determining unit for determining the amplitude of the tertiary harmonic wave signal at which the power loss of a three-phase voltage inverter is minimized, based on a voltage amplitude command value responding to two-phase voltage command signals and an output power factor command value responding to an output request to a power system.
    Type: Application
    Filed: May 18, 2017
    Publication date: May 20, 2021
    Applicant: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventor: Yoshinori TSURUMA
  • Patent number: 11007497
    Abstract: A gas jetting apparatus capable of uniformly jetting, even onto a treatment-target object having a high-aspect-ratio groove, a gas into the groove. The gas jetting apparatus includes a gas jetting cell unit for jetting a gas toward a treatment-target object. The gas jetting cell unit includes a first cone-shaped member and a second cone-shaped member. A gap is formed between a side surface of a first cone shape and a side surface of the second cone-shaped member. Apex sides of the cone-shaped members face the treatment-target object.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: May 18, 2021
    Assignee: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventors: Yoichiro Tabata, Kensuke Watanabe, Shinichi Nishimura
  • Publication number: 20210141787
    Abstract: A plant monitoring system comprises: a data collection device configured to collect multiple measured values measured during a plant equipment inspection; and a trend graph display part configured to generate a trend graph based on the multiple measured values. The data collection device comprises: a measured value collection part configured to collect multiple measured values; an event number assignment part configured to assign a same event number or a different event number to the multiple measured values based on a time difference between times at which the multiple measured values were acquired; and a measured value storage part configured to store the multiple measured values. The trend graph display part is configured to render the multiple measured values stored in the measured value storage part in a graph having measured value as a first axis and event number as a second axis.
    Type: Application
    Filed: June 25, 2019
    Publication date: May 13, 2021
    Applicant: Toshiba Mitsubishi-Electric Industrial Systems Corporation
    Inventors: Ryo SHIMIZU, Naotake MIYASAKA, Takato SONODA
  • Patent number: 11005384
    Abstract: When a load current is larger than a predetermined value, a control device of an uninterruptible power supply device controls an inverter by gate signals having a relatively high frequency and having controlled pulse widths, and when the load current is smaller than the predetermined value, the control device controls the inverter by the gate signals having a relatively low frequency and having fixed pulse widths. Therefore, when a load is a light load, switching losses occurring in IGBTs of the inverter can be decreased.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: May 11, 2021
    Assignee: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventor: Masaru Toyoda
  • Publication number: 20210135488
    Abstract: An uninterruptible power supply device includes: a converter that converts AC power supplied from an AC power supply into DC power and outputs the DC power to a first power supply node; a first bidirectional chopper that outputs DC power in a lead storage device to the first power supply node when the AC power supply has a power failure; a diode connected between the first power supply node and a second power supply node; a second bidirectional chopper that supplies and receives DC power between the second power supply node and a lithium ion battery; and a controller that controls the second bidirectional chopper to charge the lithium ion battery during regenerative operation of a load and to discharge the lithium ion battery during power running operation of the load.
    Type: Application
    Filed: July 4, 2018
    Publication date: May 6, 2021
    Applicant: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventors: Masaru TOYODA, Hiroki SHIGETA
  • Publication number: 20210130952
    Abstract: A heating chamber and a film forming chamber are disposed along a substrate conveyance path circle. The heating chamber and the film forming chamber are disposed adjacently to each other. With a substrate conveying apparatus, a plurality of substrates are simultaneously conveyed along the substrate conveyance path circle, with a substrate rotation direction being a moving direction. After heating treatment of infrared radiation apparatuses in the heating chamber is performed for the substrates, mist spraying treatment of thin film forming nozzles in the film forming chamber is performed for the substrates. In this manner, a thin film is formed on each of a front surface and a back surface of the plurality of substrates.
    Type: Application
    Filed: February 28, 2019
    Publication date: May 6, 2021
    Applicant: Toshiba Mitsubishi-Electric Industrial Systems Corporation
    Inventors: Hiroyuki ORITA, Takahiro HIRAMATSU, Nobuyoshi NAMITO, Yusuke IWAO
  • Patent number: 10996662
    Abstract: A manufacturing equipment diagnosis support system includes: a data collector which collects and records respective data in plural apparatuses to be monitored provided in manufacturing equipment; a data analysis device; and a display. The data analysis device includes: a data analysis range setting unit which sets an analysis range of data, by an item of data and time period; a data grouping unit which classifies the data into a category based on specification and use condition of the apparatus to be monitored, and a category based on a physical quantity which the data shows, to group the data; a feature extracting unit which extracts a feature in each of the data items; an unusual phenomenon specifying unit which specifies an unusual phenomenon candidate item; and a testing unit which tests whether there is a significant difference or not between the unusual phenomenon candidate item and an other data item.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: May 4, 2021
    Assignee: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventors: Hiroyuki Imanari, Kazuhiro Ohara
  • Publication number: 20210126485
    Abstract: In an uninterruptible power supply apparatus, a converter (1) is controlled such that terminal-to-terminal voltage (VDC) of a capacitor (Cd) becomes a first reference voltage (VDCr1) in an inverter power feed mode and a bypass power feed mode. In a switching period in which the inverter power feed mode and the bypass power feed mode are switched, the converter is controlled such that the terminal-to-terminal voltage of the capacitor becomes a second reference voltage (VDCr2) higher than the first reference voltage to prevent circulating current (IC) from flowing through a path including the capacitor.
    Type: Application
    Filed: November 22, 2018
    Publication date: April 29, 2021
    Applicant: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventor: Shoichi ABE
  • Publication number: 20210119550
    Abstract: A power conversion device includes a transformer, a plurality of converter cells, and a control circuit that controls semiconductor switching elements in each of the converter cells to be turned on and off. The transformer includes: a primary winding group being connected in multiple phases to an AC power supply including multiple phases; and a plurality of secondary winding groups. Each secondary winding group includes, in each of the multiple phases, secondary windings each formed of a single-phase open winding. Each converter cell converts a single-phase AC voltage between AC nodes connected to the respective secondary windings into a DC voltage by control of the semiconductor switching elements to be turned on and off, and outputs the converted DC voltage between a pair of DC nodes. The DC nodes of the plurality of converter cells are connected in series between a first DC terminal and a second DC terminal.
    Type: Application
    Filed: March 9, 2018
    Publication date: April 22, 2021
    Applicant: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventors: Ryoji TSURUTA, Hiromitsu SUZUKI, Toshiaki OKA, Ritaka NAKAMURA, Masashi NAKAMURA
  • Publication number: 20210114047
    Abstract: In a film forming apparatus of the first embodiment, an infrared radiation apparatus and a thin film forming nozzle are separately disposed from each other so that heating treatment performed in a heating chamber and mist spray treatment performed in a film forming chamber are not affected by each other. The film forming apparatus of the first embodiment performs the heating treatment of infrared radiation of the infrared radiation apparatus in the heating chamber and then performs the mist spray treatment of the thin film forming nozzle in the film forming chamber.
    Type: Application
    Filed: June 8, 2018
    Publication date: April 22, 2021
    Applicant: Toshiba Mitsubishi-Electric Industrial Systems Corporation
    Inventor: Hiroyuki ORITA
  • Patent number: 10985573
    Abstract: A power generation system includes a plurality of photovoltaic cell panels for outputting DC power, a plurality of inverters for converting DC power into AC power, and a high-order device for communicating with the plurality of inverters. The high-order device is configured to acquire a predetermined power factor, and transmit a command value to each of the plurality of inverters so that the power factor corresponding to the predetermined power factor is achieved by a total output of the plurality of inverters. The high-order device is configured so as to determine a specific inverter that has room to increase the amount of reactive power output from among the plurality of inverters, to transmit a reactive power increasing command value for increasing reactive power to the specific inverter.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: April 20, 2021
    Assignee: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventor: Yasuaki Mitsugi
  • Publication number: 20210107047
    Abstract: A cooling-water injection control device and a cooling-water injection control method for a rolling mill suppress influence by change in flow rate characteristics of water injection headers. The cooling-water injection control device for a rolling mill includes a water injection amount control unit. When a plurality of water injection headers are controlled to make temperature of a material to be rolled on a delivery side of a rolling mill coincident with a target value, in a case where a flow rate of any one of the plurality of water injection headers is less than a transient flow rate between a minimum flow rate and a maximum flow rate, the water injection amount control unit controls a flow rate of any one of the plurality of water injection headers based on priority.
    Type: Application
    Filed: March 6, 2019
    Publication date: April 15, 2021
    Applicant: Toshiba Mitsubishi-Electric Industrial Systems Corporation
    Inventor: Mitsuhiko SANO
  • Publication number: 20210110957
    Abstract: A cooling structure for a transformer according to an embodiment includes a coil and a partition member. The partition member covers the coil along the axial direction on the downstream side in the flow direction of the refrigerant that flows along the axial direction parallel to the center axis of the coil.
    Type: Application
    Filed: April 22, 2019
    Publication date: April 15, 2021
    Applicant: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventor: Shunetsu SAITOH
  • Publication number: 20210112688
    Abstract: The semiconductor device according to the present invention includes a semiconductor module, a cooling member, and a heat transfer member. The semiconductor module includes a switching element and a diode connected in antiparallel to each other. The heat transfer member is disposed between the semiconductor module and the cooling member so as to transfer heat generated by the switching element and the diode to the cooling member. The heat transfer member has a mounting surface on which the switching element and the diode are mounted side by side and a surface which is opposite to the mounting surface and is disposed in contact with the cooling member. In the heat transfer member, the thermal conductivity in a first direction parallel to the mounting surface is higher than the thermal conductivity in a second direction perpendicular to the mounting surface.
    Type: Application
    Filed: June 12, 2018
    Publication date: April 15, 2021
    Applicant: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventors: Toshihide NAKANO, Kenji SUZUKI, Koki NAKAMURA
  • Patent number: 10971338
    Abstract: In an active gas generating apparatus, a power feeder is provided above metal electrodes in an integrated high-voltage electrode unit. When seen in plan view, the power feeder has a shape that entirely covers the metal electrodes in the integrated high-voltage electrode unit. Each of power feeding units is provided below the metal electrodes in an integrated ground electrode unit. When seen in plan view, each of the power feeding units has a shape that entirely covers the metal electrodes of the integrated ground electrode unit.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: April 6, 2021
    Assignee: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventors: Ren Arita, Kensuke Watanabe, Shinichi Nishimura