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1. 发明申请

WO2020067578A1 CONTROL DEVICE FOR POWER CONVERSION DEVICE, CONTROL METHOD, AND MOTOR DRIVE SYSTEM 审中-公开
公开(公告)号：WO2020067578A1
公开(公告)日：2020-04-02
申请号：PCT/JP2019/038830
申请日：2019-09-25
申请人： TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
发明人： XU, Yang , BIXEL, Paul , MORITO, Chikara
IPC分类号： H02P21/14
摘要： A control device (10) for a power conversion device (3) according to an embodiment includes a drive control unit (16) outputting a control signal based on a drive quantity command value, a drive quantity adjustment unit (14) calculating the drive quantity command value based on a torque command for a motor (2), an estimated value of a stator magnetic flux of the motor, and a reference value of the stator magnetic flux of the motor, a magnetic flux observer calculating the estimated value of the stator magnetic flux of the motor, and a current observer (20) smoothing the estimated value of the stator magnetic flux on the basis of time history data of the calculated estimated value of the stator magnetic flux, and calculating an estimated value of a current flowing through a stator winding of the motor.

2. 发明申请

WO2008093429A1 FORCED COMMUTATED INVERTER APPARATUS 审中-公开
标题翻译：强制转换逆变器装置
公开(公告)号：WO2008093429A1
公开(公告)日：2008-08-07
申请号：PCT/JP2007/051848
申请日：2007-01-30
申请人： TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION , GRUENING, Horst , KOYANAGI, Kimiyuki , MUKUNOKI, Makoto
发明人： GRUENING, Horst , KOYANAGI, Kimiyuki , MUKUNOKI, Makoto
IPC分类号： H02M7/48
CPC分类号： H02M7/487
摘要： In a forced commutated high power inverter apparatus having a maximum rated output current I Rout , which includes a DC-link capacitor, an anode leakage inductance, a switch arm, a clamp circuitry, and at saturable core unit, the DC-link capacitor has a voltage ripple characterized by a maximum value dV m of an absolute value of a rising rate dV DC /dt, and the anode leakage inductance is connected in series with the DC-link capacitor. The switch arm includes a series connection circuitry of a gate turn-off device and a freewheel diode, and the clamp circuitry includes a clamp capacitor, a clamp diode, and a clamp voltage reset circuitry including a resistor. The saturable core unit has one of linear and gradual saturation characteristics each having a saturation current I sat , which is set so that I Rout > I sat > C 31 x dV m , with a capacitance C 31 of the clamp capacitor.
摘要翻译：在具有最大额定输出电流I 的强制换向大功率逆变器装置中，其包括直流链路电容器，阳极漏电感，开关臂，钳位电路以及可饱和核心单元 DC链路电容器具有以上升速率dV / dt的绝对值的最大值dV 的特征的电压纹波，而阳极漏电感为与直流母线电容串联。开关臂包括栅极关断装置和续流二极管的串联连接电路，钳位电路包括钳位电容器，钳位二极管和包括电阻器的钳位电压复位电路。可饱和核心单元具有线性和逐渐饱和特征之一，其中每一个具有饱和电流I sat，其设置为使得I / 具有钳位电容器的电容C 31的电压。

3. 发明申请

WO2014080537A1 ELECTRIC POWER CONVERTER WITH A VOLTAGE CONTROLLER AND A CURRENT CONTROLLER 审中-公开
标题翻译：带电压控制器和电流控制器的电力转换器
公开(公告)号：WO2014080537A1
公开(公告)日：2014-05-30
申请号：PCT/JP2012/080798
申请日：2012-11-21
申请人： MITSUBISHI ELECTRIC CORPORATION , TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION , GRUENING, Horst , HOSOKAWA, Yasuhiko
发明人： GRUENING, Horst , HOSOKAWA, Yasuhiko
IPC分类号： H02M7/49 , H02M7/5387
CPC分类号： H02M7/49 , H02M7/538 , H02M7/53803 , H02M7/53806 , H02M7/53871 , H02M2007/4835
摘要： An electric power converter for converting AC to DC power or DC to AC power is disclosed. The converter includes a circuit for controlling the voltage and the circuit for controlling the current separately. The voltage is controlled by the switching modules and the up-side controller using the calculated target voltage. The current is controlled by the current controller using the calculated target current.
摘要翻译：公开了一种用于将AC转换为DC电力或DC至AC电力的电力转换器。转换器包括用于控制电压的电路和用于分别控制电流的电路。使用计算出的目标电压由开关模块和上侧控制器控制电压。电流由电流控制器使用计算的目标电流控制。

4. 发明申请

WO2021015296A1 MOTOR DRIVE SYSTEM AND CONTROL METHOD 审中-公开
公开(公告)号：WO2021015296A1
公开(公告)日：2021-01-28
申请号：PCT/JP2020/029176
申请日：2020-07-21
申请人： WISCONSIN ALUMNI RESEARCH FOUNDATION , TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
发明人： XU, Yang , MORITO, Chikara
IPC分类号： H02P27/06
摘要： A motor drive system according to an embodiment includes an inverter and a control device. The inverter causes a current to flow through a winding of an induction motor. The control device drives the induction motor by controlling the inverter through vector control. The control device includes a plurality of calculation criteria for a stator magnetic flux estimated value of the induction motor and includes an appropriate magnetic flux command generation unit that selects a calculation criterion for the stator magnetic flux estimated value that further increases a loss of the induction motor from among the plurality of calculation criteria on the basis of at least a rotation speed of the induction motor in the case of braking the induction motor.

5. 发明申请

WO2020067576A1 CONTROL DEVICE FOR POWER CONVERSION DEVICE, AND MOTOR DRIVE SYSTEM 审中-公开
公开(公告)号：WO2020067576A1
公开(公告)日：2020-04-02
申请号：PCT/JP2019/038828
申请日：2019-09-25
申请人： TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
发明人： XU, Yang , BIXEL, Paul , MORITO, Chikara
IPC分类号： H02P23/30
摘要： A control device (10) for a power conversion device (3) according to an embodiment includes a drive control unit (16) controlling a current that is caused to flow through a stator winding of a motor (2), a drive quantity adjustment unit (14) calculating a drive quantity command value defining a drive quantity of the motor, a magnetic flux observer (22) calculating calculates a first estimated value of a stator magnetic flux of the motor and a first estimated value of a rotor magnetic flux of the motor, a current observer (21) calculating a first estimated value of the current flowing through the stator winding of the motor, and an average correction unit (30) performing calculation on the first estimated values of the stator magnetic flux of the motor. The drive quantity adjustment unit (14) calculates a control quantity defining the drive quantity of the motor on the basis of the first estimated values of the stator magnetic flux of the motor.

6. 发明公开

US20240380303A1 CONTROL DEVICE AND POWER CONVERSION DEVICE 审中-公开
公开(公告)号：US20240380303A1
公开(公告)日：2024-11-14
申请号：US18580778
申请日：2022-06-30
申请人： TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
发明人： Daiki TERASHIMA , Issei FUKASAWA
IPC分类号： H02M1/00 , G01R31/28 , H02M1/36 , H02M7/00
CPC分类号： H02M1/0009 , G01R31/2843 , H02M1/36 , H02M7/003
摘要： A control device of a power conversion device includes: an amplitude calculating circuit which calculates each of values of amplitudes of fundamental wave components of the alternating currents of the respective phases based on the current values of the alternating currents of the respective phases and a fault determining circuit which performs a magnitude comparison between each of the values of the amplitudes of the fundamental wave components of the alternating currents of the respective phases calculated by the amplitude calculating circuit and a predetermined determination value and which determines a fault of the alternating-current capacitor when the value of the amplitude of at least any phase among the values of the amplitudes of the fundamental wave components of the alternating currents of the respective phases is smaller than the predetermined determination value.

7. 发明公开

US20240339915A1 POWER CONDITIONER AND POWER CONVERSION SYSTEM 审中-公开
公开(公告)号：US20240339915A1
公开(公告)日：2024-10-10
申请号：US18294560
申请日：2022-07-28
申请人： TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
发明人： Masakazu OKAYASU , Haiqing LI
IPC分类号： H02M1/00 , H02M7/5387
CPC分类号： H02M1/0012 , H02M1/0025 , H02M7/53873
摘要： A PI controller that calculates a PI control value for charge limitation, which is a PI control value for a deviation between a DC voltage applied to an inverter circuit and a charge limiter operating voltage when the DC voltage is higher than the charge limiter operating voltage, and calculates a PI control value for discharge limitation, which is a PI control value for a deviation between the DC voltage and a discharge limiter operating voltage when the DC voltage is lower than the discharge limiter operating voltage. A limiter regulator increases a limitation on a charging power command value from a host device by a command value limiter in accordance with the PI control value for charge limitation and increases a limitation on a discharging power command value from the host device by the command value limiter in accordance with the PI control value for discharge limitation.

8. 发明公开

US20240332950A1 MOTOR CONTROL DEVICE AND MOTOR CONTROL METHOD 审中-公开
公开(公告)号：US20240332950A1
公开(公告)日：2024-10-03
申请号：US18290684
申请日：2022-03-18
申请人： TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
发明人： Kenshi TAKAO , Shunsuke TOBAYASHI
IPC分类号： H02H7/08 , H02H1/00
CPC分类号： H02H7/08 , H02H1/0007
摘要： A motor control device includes a signal identifying unit and an overvoltage detecting unit. The signal identifying unit includes an optical isolator that converts an electrical signal supplied via a terminal to which an external device is connected and a switch that turns off a connection circuit connected to the terminal. The overvoltage detecting unit is configured to turn off the switch when a voltage applied to the connection circuit is greater than a threshold voltage.

9. 发明公开

US20240297483A1 CONNECTION APPARATUS FOR ELECTRIC DEVICE, AND ELECTRIC APPARATUS 审中-公开
公开(公告)号：US20240297483A1
公开(公告)日：2024-09-05
申请号：US18578422
申请日：2022-05-31
申请人： TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
发明人： Tsubasa SASAKI , Hidetaka ISHITOBI
IPC分类号： H02B1/20
CPC分类号： H02B1/20
摘要： A plurality of connection members extend in a first direction perpendicular to a vertical direction. A plurality of terminal members are attached to the plurality of connection members, respectively. Each of the plurality of terminal members includes a fixed portion and a connected portion. The fixed portion is attached to a connection member and extends in the first direction. The connected portion is joined to one end portion of the fixed portion in a longitudinal direction, and an electric wire is connected to the connected portion. The connected portion extends in a direction orthogonal to the direction in which the fixed portion extends. Each of the plurality of terminal members is attached to the connection member in any of a first attitude in which the connected portion extends upward in the vertical direction and a second attitude in which the connected portion extends downward in the vertical direction.

10. 发明公开

US20240286141A1 DETECTION DEVICE AND DETECTION SYSTEM 审中-公开
公开(公告)号：US20240286141A1
公开(公告)日：2024-08-29
申请号：US18569605
申请日：2022-03-30
申请人： Toshiba Mitsubishi-Electric Industrial Systems Corporation
发明人： Shuzo IKEDA
IPC分类号： B02C17/18 , B02C25/00 , G01L5/00 , G01N33/24
CPC分类号： B02C17/1805 , B02C25/00 , G01L5/0071 , G01N33/24
摘要： A detection device according to an embodiment detects a presence or absence of a processing material adhered to an interior wall of a drum of a mill pulverizing a mineral. The detection device is configured to store an initial torque detected at a preset initial rotation angle, calculate a maximum torque based on the initial torque, the initial rotation angle, and a rotation angle greater than the initial rotation angle, calculate a ratio of a torque at the rotation angle divided by the maximum torque, compare the ratio and a preset threshold, and determine that the processing material is adhered to the interior wall of the drum when the ratio is equal to the threshold or greater than the threshold.

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