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1. 发明公开

US20240266985A1 POWER INTEGRATED MODULE AND MOTOR CONTROL SYSTEM 审中-公开
公开(公告)号：US20240266985A1
公开(公告)日：2024-08-08
申请号：US18307794
申请日：2023-04-26
申请人： Industrial Technology Research Institute
发明人： Shian-Chiau Chiou , Yu-Hua Cheng , Chih-Ming Tzeng
IPC分类号： H02P29/024 , H02M7/219 , H02M7/5387
CPC分类号： H02P29/027 , H02M7/219 , H02M7/53875 , H02P29/025 , H02M5/4585
摘要： A power integrated module (PIM) and a motor control system are provided. The PIM is adapted to drive a motor. The PIM includes a first transformation circuit, a second transformation circuit, and a plurality of shunt units. The first transformation circuit includes a plurality of first half-bridge circuits, and a coupling relationship among the first half-bridge circuits is selected, so that the first transformation circuit is operated in a rectifier mode or an inverter mode. The second transformation circuit includes a plurality of second half-bridge circuits coupled to the motor. The shunt units are respectively coupled between the second half-bridge circuits and the motor and configured to sense a current between the second transformation circuit and the motor.

2. 发明公开

US20240235409A1 HYBRID MODULAR MULTILEVEL CONVERTER (HMMC) FOR HIGHLY DYNAMIC LOAD APPLICATIONS 审中-公开
公开(公告)号：US20240235409A1
公开(公告)日：2024-07-11
申请号：US18517932
申请日：2023-11-22
申请人： GE ENERGY POWER CONVERSION TECHNOLOGY LIMITED
发明人： Zhi ZHOU , Duro BASIC , Anthony POPOVSKI
IPC分类号： H02M5/458 , F27D11/08
CPC分类号： H02M5/4585 , F27D11/08
摘要： Provided is an AC-DC-AC converter for delivering power to a load from a power source that includes a front-end converter, a load-end converter, and a DC link. At least one of the front-end converter and the load-end converter is a hybrid modular multilevel converter. The load-end converter or the front-end converter employ controllable switches in order to either direct or regulate power. The controllable switches can be controlled in order to modify the real and reactive power used/consumed or re-generated by the load (e.g., the electric arc furnace). The load-end converter control and the front-end converter control are independent or decoupled.

3. 发明授权

US11936323B2 System for controlling a plurality of synchronous permanent magnet electronically commutated motors 有权
公开(公告)号：US11936323B2
公开(公告)日：2024-03-19
申请号：US17499985
申请日：2021-10-13
申请人： ANNEXAIR INC.
发明人： François Lemieux , Thomas Libanet
IPC分类号： H02P7/285 , H02M5/458 , H02P5/74 , H02P6/04 , H02P27/04
CPC分类号： H02P6/04 , H02M5/4585 , H02P5/74 , H02P27/04
摘要： A system for simultaneously controlling a plurality of PM AC motors includes a single VFD operatively connected to a power source. The single VFD is programmable to have predetermined operating conditions. The plurality of PM AC motors is operatively connected to the single VFD. Each PM AC motor is free of a built-in VFD. Each PM AC motor is operated in accordance with the operating conditions of the single VFD.

4. 发明授权

US11923787B2 Isolated inverters 有权
公开(公告)号：US11923787B2
公开(公告)日：2024-03-05
申请号：US17579025
申请日：2022-01-19
申请人： Kohler Co.
发明人： Adam Larson , Isaac S. Frampton
IPC分类号： H02M7/5387 , H02M1/38 , H02M5/458 , H02M7/48 , H02M7/5395 , H02M1/00 , H02P9/30 , H02P27/06
CPC分类号： H02M7/5387 , H02M1/38 , H02M5/4585 , H02M7/48 , H02M7/5395 , H02M1/0038 , H02M1/0067 , H02M1/008 , H02M1/385 , H02P9/305 , H02P27/06
摘要： An isolated bus inverter system including inverter circuits and a controller. The inverter circuits include a switching array to provide a polyphase alternating current (AC) signal to an output. Each of the inverter circuits includes an energy source isolated from the other inverter circuits of the inverter circuits or a reference isolated from the other inverter circuits of the inverter circuits. The controller is configured to generate timing signals for the inverter circuits to generate the AC signals for the output based on DC signals received from one or more rectifier circuits.

5. 发明公开

US20240063725A1 Detection of AC Input Disconnection in an AC-DC Converter Section of a Power Converter 审中-公开
公开(公告)号：US20240063725A1
公开(公告)日：2024-02-22
申请号：US17889617
申请日：2022-08-17
申请人： ABB Schweiz AG
发明人： Kalyan P. Gokhale
IPC分类号： H02M5/458 , H02M1/32
CPC分类号： H02M5/4585 , H02M1/32
摘要： A detection circuit including a converter configured to convert a multiphase alternating current (AC) input into a direct current (DC) output, a plurality of sensing diodes, each sensing diode being separately electrically connected to one phase of the multiphase AC input, at least one node arranged downstream from the plurality of sensing diodes relative to the multiphase AC input, a power source configured to output a power source voltage to the at least one node and plurality of sensing diodes, and a mask time generator configured to determine a node voltage at the at least one node and determine whether the node voltage persists for a predetermined mask time period.

6. 发明公开

US20240063708A1 POWER CONVERTER, MOTOR DRIVING APPARATUS, AND REFRIGERATION CYCLE APPLIED APPARATUS 审中-公开
公开(公告)号：US20240063708A1
公开(公告)日：2024-02-22
申请号：US18259340
申请日：2021-02-12
申请人： Mitsubishi Electric Corporation
发明人： Koichi ARISAWA , Takuya SHIMOMUGI , Takaaki TAKAHARA , Haruka MATSUO , Keisuke UEMURA
IPC分类号： H02M1/12 , H02M1/42 , H02M1/00 , H02M1/16 , H02M5/458 , H02P27/12 , H02M1/14 , F25B49/02
CPC分类号： H02M1/12 , H02M1/4283 , H02M1/0009 , H02M1/16 , H02M1/4225 , H02M5/4585 , H02P27/12 , H02M1/143 , F25B49/025 , H02P2201/07 , H02P2201/09 , H02P2201/15 , F25B2600/021
摘要： A power converter includes: a rectifying and boosting unit that rectifies first alternating-current power supplied from a commercial power supply and boosts a voltage of the first alternating-current power; a capacitor connected to an output end of the rectifying and boosting unit; an inverter to convert power output from the rectifying and boosting unit and the capacitor into second alternating-current power, and output the second alternating-current power to a device; and a control unit that reduces a current flowing through the capacitor by controlling the rectifying and boosting unit and by controlling the inverter such that the inverter outputs, to the device, the second alternating-current power containing a ripple dependent on a ripple of power flowing from the rectifying and boosting unit into the capacitor. The control unit controls in accordance with a load state.

7. 发明公开

US20240007011A1 POWER CONVERTER AND AIR-CONDITIONING APPARATUS 审中-公开
公开(公告)号：US20240007011A1
公开(公告)日：2024-01-04
申请号：US18255177
申请日：2021-02-04
申请人： Mitsubishi Electric Corporation
发明人： Kenta YUASA , Kenji IWAZAKI , Keiwa TSUKANO
IPC分类号： H02M5/458 , F24F11/88 , H02M1/08 , H02P27/08
CPC分类号： H02M5/4585 , F24F11/88 , H02M1/08 , H02P27/08
摘要： A power converter includes a power converting module and a gate drive circuit that includes first and second drive circuits and a power supply module including a limiting resistor, a bootstrap diode, and a bootstrap capacitor, and configured to generate a voltage to be supplied to the second drive circuit. The bootstrap capacitor is charged when a switching element connected to a reference potential side performs switching. A charging period of the bootstrap capacitor includes at least first and second periods. In the first period, the switching element is driven by a pulse signal having a first pulse width. In the second period, the switching element is driven by a pulse signal having a second pulse width greater than the first one. The first pulse width in the first period is determined based on an allowable magnitude of a voltage drop of the control power supply in the first period.

8. 发明授权

US11855548B2 Power conversion device and power conversion control device 有权
公开(公告)号：US11855548B2
公开(公告)日：2023-12-26
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： H02M3/158 , H02M5/458 , H02P27/06
CPC分类号： H02M5/4585 , H02M3/158 , H02P27/06
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.

9. 发明授权

US11824452B2 Integrated power conversion apparatus for xEV and integrated power conversion method thereof 有权
公开(公告)号：US11824452B2
公开(公告)日：2023-11-21
申请号：US17662621
申请日：2022-05-09
申请人： UIF (University Industry Foundation), Yonsei University
发明人： Jung Wook Park , Issac Kim
IPC分类号： B60L53/20 , H02M3/335 , H02M5/458 , H02P27/06
CPC分类号： H02M3/335 , B60L53/20 , H02M5/4585 , H02P27/06
摘要： According to the integrated power conversion apparatus and method according to the exemplary embodiment of the present disclosure, the on-board battery charger (OBC), the lower voltage battery charger (LDC), and the traction converter (TC) are integrated to convert the power so that all the functions which need to be performed by the power conversion system of the related art can be performed. Further, the number of switches is reduced to increase a power density and not only the number of switches, but also the number of controllers is reduced to improve feasibility.

10. 发明公开

US20230369964A1 ELECTRIC POWER CONVERTER 审中-公开
公开(公告)号：US20230369964A1
公开(公告)日：2023-11-16
申请号：US18245173
申请日：2021-10-05
申请人： SMARTD TECHNOLOGIES INC.
发明人： Mostafa ABARZADEH , Simon CARON , Fadia SEBAALY
IPC分类号： H02M1/12 , H02M5/458 , H02M7/797 , H02M1/44 , H02M7/483 , H02M1/00 , H02M7/487 , H02P27/08
CPC分类号： H02M1/126 , H02M5/4585 , H02M7/797 , H02M1/44 , H02M7/4837 , H02M1/0054 , H02M7/487 , H02P27/08
摘要： A converter with lower passive filter size and increased flying capacitor charging speed during the converter start-up uses a combination of a multi-level power converter circuit having a flying capacitor in which the first switching harmonic cluster is at twice the switching frequency and an integrated double-stage filter designed to allow the flying capacitor to be efficiently balanced and to allow noise from the harmonic clusters and from switches in the power converter circuit to be suppressed. This provides for a compact power conversion apparatus.

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