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61. 发明申请

US20220111412A1 ULTRASONIC ATOMIZATION APPARATUS 有权
公开(公告)号：US20220111412A1
公开(公告)日：2022-04-14
申请号：US17429642
申请日：2020-01-17
申请人： Toshiba Mitsubishi-Electric Industrial Systems Corporation
发明人： Hiroyuki ORITA , Takahiro HIRAMATSU
IPC分类号： B05B17/06
摘要： In an ultrasonic atomization apparatus being the present invention, a source solution is accommodated in a separator cup being a part of a container. A constituent material of the separator cup is PTFE being one of fluorocarbon resins, whose entire thickness is uniformly 0.5 mm. Therefore, the separator cup satisfies a thin film condition that “the thickness of a bottom surface BP1 is 0.5 mm or less”.

62. 发明授权

US11298733B2 Method for calculating plate thickness schedule for tandem rolling machine and rolling plant 有权
公开(公告)号：US11298733B2
公开(公告)日：2022-04-12
申请号：US16652417
申请日：2019-10-30
申请人： Toshiba Mitsubishi-Electric Industrial Systems Corporation
发明人： Mitsuhiko Sano
IPC分类号： B21B37/16
摘要： A plate thickness schedule calculation method includes a plurality of steps. One step acquires a rolling model expression including a roll force model or a motor power model. Another step determines whether or not a parameter restriction has occurred that restricts at least one parameter of roll force, motor power and a reduction rate in each rolling stand. Further another step is to select a first derived function when no parameter restriction occurs and to select a second derived function when the parameter restriction has occurred in accordance with a result of the determination for each rolling stand. Still another step modifies each delivery side plate thickness in each rolling stand using a matrix including the one derived function selected from the first derived function and the second derived function in accordance with the result of the determination.

63. 发明授权

US11290001B2 Power supply device 有权
公开(公告)号：US11290001B2
公开(公告)日：2022-03-29
申请号：US17052711
申请日：2019-03-05
申请人： TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
发明人： Xiaochen Zhang , Toshihide Nakano
IPC分类号： H02M1/34 , H02J9/06 , H02M3/335 , H03K17/16 , H03K17/567
摘要： The uninterruptible power supply device includes a switch (2) that includes first to Nth IGBT units (U1 to UN) connected in series, and a controller that turns on the switch by turning on the first to Nth IGBT units, and turns off the switch by firstly turning off the first to nth IGBT units and then turning off the (n+1)th to Nth IGBT units. Compared with the case where the first to Nth IGBT units are turned off at the same time, it is possible to reduce a surge voltage generated between the terminals of the switch (2).

64. 发明申请

US20220085729A1 POWER CONVERSION DEVICE AND POWER CONVERSION CONTROL DEVICE 有权
公开(公告)号：US20220085729A1
公开(公告)日：2022-03-17
申请号：US17419960
申请日：2019-06-04
申请人： TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
发明人： Naoto NIIMURA
IPC分类号： H02M5/458 , H02M3/158
摘要： A power conversion device in an embodiment includes a first power converter; a plurality of direct current-direct current (DCDC) converter devices; and a second power converter. The first power converter includes a plurality of first positive-side arms; a plurality of first negative-side arms; a first positive-side star connection line configured to connect the plurality of first positive-side arms in a star shape; a first negative-side star connection line configured to connect the plurality of first negative-side arms in a star shape; and a first terminal configured to connect the first positive-side star connection line and the first negative-side star connection line to each phase of a power supply side alternating current (AC) system and the plurality of first positive-side arms and the plurality of first negative-side arms mutually convert a first AC power and a first DC power of the power supply side AC system. A plurality of DCDC converter devices mutually convert the first DC power and the second DC power. The second power converter includes a plurality of second positive-side arms; a plurality of second negative-side arms; a second positive-side star connection line configured to connect the plurality of second positive-side arms in a star shape; a second negative-side star connection line configured to connect the plurality of second negative-side arms in a star shape; and a second terminal configured to connect the second positive-side star connection line and the second negative-side star connection line to each phase of a load-side AC system, and the plurality of second positive-side arms and the plurality of second negative-side arms mutually convert the second DC power and the second AC power.

65. 发明授权

US11271508B2 Power conversion device, motor driving system, and control method 有权
公开(公告)号：US11271508B2
公开(公告)日：2022-03-08
申请号：US16975880
申请日：2019-02-15
申请人： TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
发明人： Naoto Niimura , Teruo Yoshino
IPC分类号： H02P27/08 , H02P23/26
摘要： In a power converter, a first single-phase AC conversion unit, which is connected to a first line of a first phase and a second line of a second phase of a first three-phase AC, a second single-phase AC conversion unit, which is connected to the second line of the second phase and a third line of a third phase of the first three-phase AC, and a third single-phase AC conversion unit, which is connected to the third line of the third phase and the first line of the first phase of the first three-phase AC, form a delta-connected load for an AC power supply system. At least the first single-phase AC conversion unit, the second single-phase AC conversion unit, and the third single-phase AC conversion unit form a first set in which respective output terminals are connected in series to one another, and the first set, and a second set and a third set, which are different from the first set, form each phase of a star connected power supply. A reactive power control unit controls a reactive power of a converter of each single-phase AC conversion unit based on a reactive power command value generated based on an acquired value related to an active power.

66. 发明授权

US11231692B2 Process line HMI system 有权
公开(公告)号：US11231692B2
公开(公告)日：2022-01-25
申请号：US17053369
申请日：2018-10-31
申请人： Toshiba Mitsubishi-Electric Industrial Systems Corporation
发明人： Hiroyuki Fujieda , Nobuo Shimizu , Akira Nojima
IPC分类号： G05B19/05
摘要： An HMI renders on an HMI screen a process line which includes: a movable looper group part obtained by grouping at least one movable roll part and a plurality of line parts connected to the movable roll part; and a plurality of fixed roll parts connected to the movable looper group part. The HMI continuously obtains a process line length from an output signal of a monitoring target device. The HMI calculates a looper movement amount by dividing a difference between a process line total length and the process line length by the number of parts in the plurality of line parts which are shared by the movable looper group part with the plurality of fixed roll parts. The HMI changes a relative position between the plurality of fixed roll parts and the movable looper group part on the HMI screen according to the looper movement amount.

67. 发明申请

US20220008976A1 PREDICTION SYSTEM OF STRIP CHEW IN HOT ROLLING MILL 有权
公开(公告)号：US20220008976A1
公开(公告)日：2022-01-13
申请号：US17275205
申请日：2019-09-12
申请人： Toshiba Mitsubishi-Electric Industrial Systems Corporation
发明人： Masayasu SEKIMOTO , Hiroyuki IMANARI , Mitsuhiko SANO , Girish Babu MERUVA , Sai Prem Kumar AYYAGARI
IPC分类号： B21B37/68 , B21B1/26 , G05B13/04 , G05B13/02
摘要： The prediction system of strip chew collects and stores first data and second data as adaptive model construction data. The first data indicates the occurrence or non-occurrence of the strip chew in an object rolling path and the occurrence point of the strip chew. The second data includes information on a preceding rolling path and attribute information on an object strip. The system constructs an adaptive model using the stored adaptive model construction data, and stores the constructed adaptive model as an adapted model. The system collects prediction data similar to the second data. Then, the system inputs the prediction data to the adapted model to predict the occurrence or non-occurrence of the strip chew in the object rolling path and all or some of the occurrence points of the strip chew before the prediction object strip reaches the object rolling path.

68. 发明申请

US20220007487A1 ACTIVATED GAS GENERATION APPARATUS 有权
公开(公告)号：US20220007487A1
公开(公告)日：2022-01-06
申请号：US17281263
申请日：2019-08-22
申请人： Toshiba Mitsubishi-Electric Industrial Systems Corporation
发明人： Kensuke WATANABE , Ren ARITA
IPC分类号： H05H1/24 , C23C16/452
摘要： In the present invention, a high-voltage side electrode constituent part includes a dielectric electrode and metal electrodes formed on the upper surface of the dielectric electrode. The dielectric electrode has a structure in which a film thickness is continuously changed along an X direction. That is, the film thickness of the right end of the dielectric electrode is set to a thickness dA1; and the film thickness of the left end is set to a thickness dB1 (>dA1), and is continuously increased from the right end to the left end along the X direction.

69. 发明授权

US11218069B2 Power conversion device 有权
公开(公告)号：US11218069B2
公开(公告)日：2022-01-04
申请号：US17265022
申请日：2019-03-07
申请人： TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION , NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY
发明人： Yushin Yamamoto , Satoshi Ogasawara , Shunsuke Ohara
IPC分类号： H02M1/12 , H02M7/5395 , H02M7/48
摘要： A power conversion device, including: a voltage detector that detects a common mode voltage generated upon a switching operation of a power semiconductor device; a voltage superimposer that superimposes the common mode voltage detected by the voltage detector onto an output of the power conversion device to cancel the common mode voltage having a frequency greater than or equal to a switching frequency generated upon the switching operation of the power semiconductor device; and a residual voltage detector that detects the common mode voltage of the power conversion device superimposed by the voltage superimposer. The voltage superimposer includes a feedback mechanism for adding and superimposing the common mode voltage detected by the residual voltage detector onto the output of the power conversion device. The voltage detector includes a first choke coil and a first capacitor.

70. 发明申请

US20210405098A1 SYSTEM FREQUENCY DETECTOR 有权
公开(公告)号：US20210405098A1
公开(公告)日：2021-12-30
申请号：US16973437
申请日：2020-01-30
申请人： Toshiba Mitsubishi-Electric Industrial Systems Corporation
发明人： Yasuaki MITSUGI , Takashi SHIGEMASA
IPC分类号： G01R23/06 , G01R23/15
摘要： A system frequency detector includes an orthogonal coordinate signal generator generating an orthogonal two-phase voltage signal from a three-phase voltage signal of three-phase alternating current power by converting the three-phase voltage signal into a two-phase voltage signal orthogonal to the three-phase voltage signal, converting the two-phase voltage signal into a voltage signal of a rotating coordinate system, calculating a moving average of the voltage signal of the rotating coordinate system, and performing an inverse transformation of the voltage signal of the rotating coordinate system after calculating the moving average. A frequency calculator calculates an angular frequency based on the two-phase voltage signal, and an arithmetic unit calculates a system frequency of the power system from the angular frequency. The frequency calculator includes a rate limiter in series with the arithmetic unit, the rate limiter limiting a change of the system frequency equal to or greater than a prescribed change rate.

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