公开(公告)号：EP0039281A3

公开(公告)日：1981-11-18

申请号：EP81400637

申请日：1981-04-22

Applicant: JEUMONT-SCHNEIDER Société anonyme dite:

Inventor： Wiart, Albert

IPC: H02M05/45 ,  H02P07/62

CPC classification number: H02P27/06 ,  H02M5/4505 ,  H02P2201/03

公开(公告)号：EP0039281A2

公开(公告)日：1981-11-04

申请号：EP81400637.5

申请日：1981-04-22

Applicant: JEUMONT-SCHNEIDER Société anonyme dite:

Inventor： Wiart, Albert

IPC: H02M5/45 ,  H02P7/62

CPC classification number: H02P27/06 ,  H02M5/4505 ,  H02P2201/03

Abstract: L'invention concerne la transformation d'une puissance d'entrée en courant alternatif ou continu en une puissance de sortie en courant alternatif avec transformation intermédiaire en courant continu au moyen de convertisseurs statiques.
Selon l'invention, un adaptateur disposé dans le circuit intermédiaire à courant continu (4) est constitué par une branche connectée entre les bornes de sortie du convertisseur d'entrée (5) et comprenant, en série, un thyristor (18) de roue libre et une inductance (16) dont la valeur est égale à l'inductance totale de fuite du moteur 1 connecté à l'onduleur réversible de sortie 20.
Application à la réduction des harmoniques des ondes de courant dans la ligne d'alimentation.

公开(公告)号：US11915999B2

公开(公告)日：2024-02-27

申请号：US18103865

申请日：2023-01-31

Applicant: Infineon Technologies AG

Inventor： Tomasz Naeve ,  Ralf Otremba ,  Thorsten Scharf ,  Markus Dinkel ,  Martin Gruber ,  Elvir Kahrimanovic

IPC: H01L23/495 ,  H01L21/48 ,  H01L21/56 ,  H01L23/31 ,  H01L23/40 ,  H01L25/065 ,  H01L25/075 ,  H01L25/04 ,  H02P27/06

CPC classification number: H01L23/49568 ,  H01L21/4825 ,  H01L21/565 ,  H01L23/3107 ,  H01L23/3114 ,  H01L23/4012 ,  H01L23/49503 ,  H01L23/49524 ,  H01L23/49562 ,  H01L23/49575 ,  H01L25/043 ,  H01L25/0655 ,  H01L25/0756 ,  H01L2924/181 ,  H02P27/06 ,  H02P2201/03

Abstract: A semiconductor device includes: a carrier including an electronic circuit; a plurality of semiconductor chip packages mounted on the carrier, each of the chip packages including an encapsulation encapsulating the semiconductor chip, a plurality of contact structures electrically connecting the semiconductor chip with the electronic circuit, and at least one cooling structure protruding from the encapsulation; and a cooling element thermally conductively connected to at least one cooling structure of each of at least two of the plurality of semiconductor chip packages.

公开(公告)号：US11843338B2

公开(公告)日：2023-12-12

申请号：US17837309

申请日：2022-06-10

Applicant: Schneider Toshiba Inverter Europe SAS

Inventor： Mohamad Koteich ,  Thomas Devos

IPC: H02P27/08 ,  H02P23/12

CPC classification number: H02P27/085 ,  H02P23/12 ,  H02P2201/03

Abstract: Examples include a method for controlling a variable speed drive driving an electric motor. The variable speed drive is connected to an electric power source and comprises a passive DC-link and an inverter stage controlled by a first controller of the variable speed drive. The passive DC-link is connected to the inverter stage. The method comprises running the electric motor to reach a steady-state operating point, measuring a plurality of values of current or voltage of the passive DC-link, and computing, by a second controller, a frequency spectrum of the DC-link based on the plurality of values of current or voltage measured. The method further comprises detecting a specific resonance frequency by comparing amplitudes of the frequency spectrum to a predetermined pattern, and modifying filter parameters of a digital filter of the DC-link or control parameters of a control law of the electric motor based on the specific resonance frequency.

公开(公告)号：US20230187326A1

公开(公告)日：2023-06-15

申请号：US18103865

申请日：2023-01-31

Applicant: Infineon Technologies AG

Inventor： Tomasz Naeve ,  Ralf Otremba ,  Thorsten Scharf ,  Markus Dinkel ,  Martin Gruber ,  Elvir Kahrimanovic

IPC: H01L23/495 ,  H01L23/31 ,  H01L21/48 ,  H01L21/56 ,  H01L25/065

CPC classification number: H01L23/49568 ,  H01L23/3114 ,  H01L23/49503 ,  H01L23/49524 ,  H01L23/49575 ,  H01L21/4825 ,  H01L21/565 ,  H01L23/49562 ,  H01L23/3107 ,  H01L25/0655 ,  H02P2201/03 ,  H02P27/06

Abstract: A semiconductor device includes: a carrier including an electronic circuit; a plurality of semiconductor chip packages mounted on the carrier, each of the chip packages including an encapsulation encapsulating the semiconductor chip, a plurality of contact structures electrically connecting the semiconductor chip with the electronic circuit, and at least one cooling structure protruding from the encapsulation; and a cooling element thermally conductively connected to at least one cooling structure of each of at least two of the plurality of semiconductor chip packages.

公开(公告)号：US20180367080A1

公开(公告)日：2018-12-20

申请号：US16061608

申请日：2016-11-10

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Shinichi ISHIZEKI ,  Nobuyasu HIRAOKA

IPC: H02P27/06 ,  H02M5/458

CPC classification number: H02P27/06 ,  H02M3/1582 ,  H02M5/458 ,  H02M5/4585 ,  H02M7/06 ,  H02M7/48 ,  H02M7/797 ,  H02M2001/007 ,  H02P2201/03 ,  H02P2201/07 ,  H02P2201/09

Abstract: A discharge switch and a capacitor are connected in series between first and second DC power supply lines. A boost circuit boosts a rectified voltage to charge the capacitor. An inverter receives the rectified voltage as a DC voltage when the discharge switch is not conducting, receives a voltage across the capacitor as the DC voltage when the discharge switch is conducting, converts the DC voltage into an AC voltage, and outputs it to a motor. A switch control unit maintains the discharge switch not conducting over a first time period, and switches the discharge switch between conducting and not conducting in a second time period. A charge and discharge time period setting unit sets the first time period when a rotational speed of the motor is higher than a speed threshold shorter than the first time period when the rotational speed is lower than the speed threshold.

公开(公告)号：US09935569B2

公开(公告)日：2018-04-03

申请号：US14894609

申请日：2013-09-30

Applicant: Mitsubishi Electric Corporation

Inventor： Akihiro Tsumura ,  Kenta Yuasa ,  Shinsaku Kusube

IPC: H02P27/00 ,  H02P6/28 ,  H02M5/458 ,  H01L29/16 ,  H02M1/42 ,  H02M1/00

CPC classification number: H02P6/28 ,  H01L29/1608 ,  H02M1/4225 ,  H02M5/458 ,  H02M2001/007 ,  H02P2201/03 ,  H02P2201/09 ,  Y02B70/126

Abstract: A motor drive control apparatus according to the present invention includes: a three-phase rectifier to rectify an AC voltage supplied from a three-phase AC source; a booster circuit including a reactor, a switching element, and a backflow preventing element, to boost a DC bus voltage supplied from the three-phase rectifier; a smoothing capacitor to smooth an output of the booster circuit; and an inverter circuit to convert the DC bus voltage smoothed by the smoothing capacitor into an AC voltage and supplying the AC voltage to a motor. During a starting operation of a boosting operation of the booster circuit or a stopping operation of the boosting operation thereof, a rotation speed of the motor is fixed.

公开(公告)号：US20170373625A1

公开(公告)日：2017-12-28

申请号：US15543322

申请日：2016-01-06

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Søren ANDERSEN ,  John Godsk NIELSEN ,  Duy Duc DOAN

IPC: H02P9/00 ,  F03D9/25 ,  H02K7/18 ,  H02J3/36 ,  G01R31/42 ,  G01R27/16 ,  F03D7/02 ,  G01R31/34 ,  H02J3/38 ,  H02P101/15

CPC classification number: H02P9/006 ,  F03D7/0264 ,  F03D7/0284 ,  F03D7/04 ,  F03D9/255 ,  G01R27/16 ,  G01R31/343 ,  G01R31/40 ,  G01R31/42 ,  H02J3/36 ,  H02J3/386 ,  H02K7/1838 ,  H02M5/4585 ,  H02P2101/15 ,  H02P2201/03 ,  Y02E10/723 ,  Y02E10/725 ,  Y02E10/763 ,  Y02E60/60

Abstract: A method of monitoring a split wind-turbine-converter system with at least one generator-side converter and at least one grid-side converter arranged at distant locations, and a DC-link in the form of an elongated conductor arrangement with at least one positive and at least one negative conductor. The impedance of the DC-link conductor arrangement is determined by means of DC-voltage sensors. The voltages between the positive and the negative conductors are determined at the generator-side converter and at the grid-side converter, and the difference between the voltages is determined. The impedance of the DC-link conductor arrangement is determined by putting the determined voltage difference in relation to the DC current flowing through the DC-link conductor arrangement. If the impedance exceeds a given impedance threshold a fault state is recognized.

公开(公告)号：US20170331389A1

公开(公告)日：2017-11-16

申请号：US15152961

申请日：2016-05-12

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Ahmed Mohamed Sayed Ahmed ,  Prathamesh R. Vadhavkar ,  Brian J. Seibel

IPC: H02M5/458 ,  H02P27/06 ,  H02M5/453 ,  H02M5/42 ,  H02M1/08 ,  H02P23/00

CPC classification number: H02M5/4585 ,  H02M1/08 ,  H02M1/32 ,  H02M5/42 ,  H02M5/453 ,  H02M5/458 ,  H02M2001/325 ,  H02P23/0004 ,  H02P27/06 ,  H02P29/00 ,  H02P2201/03

Abstract: Power conversion systems and methods are provided for ride through of abnormal grid conditions or disturbances, in which a system rectifier is operated in a first mode to regulate a DC voltage of an intermediate DC circuit, an inverter is operated in the first mode to convert DC power from the intermediate DC circuit to provide AC output power to drive a load. In response to detecting an abnormal grid condition, the system changes to a second mode in which the rectifier is turned off and the inverter regulates the DC voltage of the intermediate DC circuit using power from the load.

公开(公告)号：US20170229994A1

公开(公告)日：2017-08-10

申请号：US15429170

申请日：2017-02-10

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Mitsujiro SAWAMURA ,  Yasuhiko KAKU

IPC: H02P27/08 ,  H02P6/14 ,  H02M3/158 ,  H02M7/06 ,  H02M7/537

CPC classification number: H02P27/08 ,  H02M3/158 ,  H02M5/458 ,  H02M7/06 ,  H02M7/537 ,  H02P6/14 ,  H02P2201/03

Abstract: A motor control apparatus includes an AC-DC converter, an auxiliary power source, and an inverter. The AC-DC converter converts AC power into DC power and feeds the DC power to a DC bus bar. DC power is fed from the auxiliary power source to the DC bus bar and from the DC bus bar to the auxiliary power source. The inverter converts the DC power of the DC bus bar into the AC power and feeds the AC power to a motor. The auxiliary power source includes a capacitor, a DC-DC converter, and circuitry. The DC-DC converter performs conversion between a first DC voltage of the DC bus bar and a second DC voltage applied between both terminals of the capacitor or inside of the capacitor. The circuitry is configured to control the DC-DC converter to maintain positive correlation between the second DC voltage and the first DC voltage.