公开(公告)号：US3447064A

公开(公告)日：1969-05-27

申请号：US3447064D

申请日：1965-01-26

Applicant: JEUMONT FORGES CONST ELEC

Inventor： MOURY PIERRE

IPC: H02M7/155 ,  H02P3/12 ,  H02M1/08 ,  H02M7/44 ,  H02M7/68

CPC classification number: H02M7/1555 ,  H02P3/12

公开(公告)号：US3435324A

公开(公告)日：1969-03-25

申请号：US3435324D

申请日：1967-11-01

Applicant: BELL TELEPHONE LABOR INC

Inventor： BISHOP JOHN D

IPC: H02M7/537 ,  H02M7/5387 ,  H02M7/44 ,  H02M7/68

CPC classification number: H02M7/53871

公开(公告)号：US3421072A

公开(公告)日：1969-01-07

申请号：US3421072D

申请日：1966-08-18

Applicant: VALID DATA CORP

Inventor： WOOLAM FRANK J

IPC: H03F3/393 ,  H03K17/687 ,  H02M7/44 ,  H02M7/68

CPC classification number: H03K17/6877 ,  H03F3/393

公开(公告)号：US11929621B2

公开(公告)日：2024-03-12

申请号：US17603261

申请日：2020-04-17

Applicant: GS Yuasa International Ltd.

Inventor： Hiroaki Endo ,  Masao Yokoyama ,  Shinichi Hongo

IPC: H02J3/38 ,  H02J3/00 ,  H02J3/32 ,  H02J3/46 ,  H02M7/68

CPC classification number: H02J3/381 ,  H02J3/003 ,  H02J3/004 ,  H02J3/32 ,  H02J3/46 ,  H02J2300/24 ,  H02M7/68

Abstract: A power control apparatus for a distributed power supply interconnected with a power system includes: a conversion circuit that performs reverse conversion of converting power supplied from the distributed power supply from direct current to alternating current and outputting the converted power; and a control device that controls the conversion circuit. The control device changes a target value of received power at a power reception point of the power system on the basis of a predicted value of a power generation amount of the distributed power supply and a predicted value of power consumption of a demand facility, and controls an output of the conversion circuit such that the received power at the power reception point becomes a target value.

公开(公告)号：US20240014661A1

公开(公告)日：2024-01-11

申请号：US18252235

申请日：2020-11-17

Applicant: Mitsubishi Electric Corporation

Inventor： Masahiro HARIO ,  Noriyuki IMADA

IPC: H02J3/36 ,  H02J3/18 ,  H02J3/01 ,  H02M7/68

CPC classification number: H02J3/36 ,  H02J3/18 ,  H02J3/01 ,  H02M7/68

Abstract: A power conversion device included in a self-excited DC power transmission system connected to an AC system includes a self-excited converter and a control device. The control device includes: a storage to store first vibration information and a first control parameter of the self-excited converter in association with each other for each of a plurality of pieces of first vibration information, a vibration detector to detect a vibration component of an AC voltage of the AC system; a determination unit to determine whether first similar vibration information similar to first detected vibration information including the vibration component of the AC voltage of the detected AC system exists in the plurality of pieces of first vibration information; and a setting unit to set the first control parameter associated with the first similar vibration information as a new control parameter of the self-excited converter when the first similar vibration information exists.

公开(公告)号：US11482942B2

公开(公告)日：2022-10-25

申请号：US15799387

申请日：2017-10-31

Applicant: OTIS ELEVATOR COMPANY

Inventor： Ismail Agirman

IPC: H02P6/06 ,  H02M5/458 ,  B66B1/30 ,  H02P27/08 ,  H02M7/04 ,  H02M7/00 ,  B66B1/00 ,  H02M5/00 ,  H02M5/40 ,  H02P27/06 ,  H02M7/68

Abstract: A three-phase regenerative drive configured for operation from a single phase alternating current (AC) power source, the three-phase regenerative drive including a three-phase converter having inputs for connection to a single-phase AC source, the three-phase converter having three phase legs, a three-phase inverter for connection to a motor, the three phase inverter configured to provide three phase command signals to the motor, and a DC bus connected between the three-phase converter and the three-phase inverter. A first phase leg of the three-phase converter and a second phase leg of the three-phase converter are employed to direct current from the single-phase AC source to the DC Bus and a third phase leg of the three phase legs of the three-phase converter returns current to a return of the AC source.

公开(公告)号：US20200177071A1

公开(公告)日：2020-06-04

申请号：US16629389

申请日：2018-07-05

Applicant: The University of Birmingham

Inventor： Xiao-Ping Zhang ,  Ying Xue

IPC: H02M1/12 ,  H02M1/32 ,  H02M7/68 ,  H02J3/36

Abstract: The disclosure relates to a line commutated converter, LCC, for a high-voltage direct current, HVDC, power converter. The LCC comprises at least one bridge circuit for connection to at least one terminal of a DC system. Each bridge circuit comprises at least two arms, and each arm is associated with a phase of an AC system. Each arm comprises one or more upper thyristor valves and one or more lower thyristor valves connected in series, and a branch extending from between the upper and lower thyristor valves. Each arm further comprises a parallel capacitor module comprising at least one parallel capacitor being connected in parallel between at least one pair of branches comprising a first branch and a second branch wherein during commutation of a flow of current in the first branch to a flow of current in the second branch, the at least one parallel capacitor is configured to discharge current in to the second branch in the same direction as the flow of current in the second branch.

公开(公告)号：US10396560B2

公开(公告)日：2019-08-27

申请号：US15302100

申请日：2015-04-08

Applicant: Eltek AS

Inventor： Johan Svedendahl ,  Nils Bäckman ,  Sylvain Chatelet ,  Roberto Rojas

IPC: H02J3/32 ,  H02J9/06 ,  H02M5/42 ,  H02M7/68 ,  H05K5/00 ,  H02M3/04 ,  H01H15/00

Abstract: An electric multimode power converter module includes an AC/DC converter, including a first AC port; a DC/AC converter, including a second AC port; a DC/DC converter, including a DC port; a controller; and a communication bus interconnecting the converters. The controller includes a hardware configuration port and sets the module in the following states, based on the value read from the configuration port: a first state in which the module transfers power between the first AC port and the DC port, a second state in which the module transfers power between the DC port and the second AC port, and a third state in which the module transfers power between the AC ports and the DC port. A power supply system includes a shelf device including at least one compartment, and an electric multimode power converter module as mentioned above is inserted in the at least one compartment.

公开(公告)号：US09979291B2

公开(公告)日：2018-05-22

申请号：US15335339

申请日：2016-10-26

Applicant: Futurewei Technologies, Inc.

Inventor： Dianbo Fu

IPC: H02M7/68 ,  H02M3/158 ,  H02M7/537 ,  H02M1/32

CPC classification number: H02M3/158 ,  H02J3/383 ,  H02M7/487 ,  H02M2001/007

Abstract: An inverter apparatus is provided for converting direct current to alternating current. The inverter apparatus includes a boost converter coupled between a power source and a bypass circuit, and a power inverter coupled between the bypass circuit and a load to generate an output voltage. The output voltage is powered by the power source directly via the bypass circuit without activating the boost converter when the output voltage is smaller than a threshold voltage. The output voltage is powered by the power source boosted by the boost converter when the output voltage is larger than the threshold voltage. High efficiency is achieved by bypassed the boost converter.

公开(公告)号：US09887633B2

公开(公告)日：2018-02-06

申请号：US14616987

申请日：2015-02-09

Applicant: Fairchild Semiconductor Corporation

Inventor： Hang-Seok Choi

IPC: H02M3/335 ,  H02M1/00 ,  H02M5/42 ,  H02M7/68 ,  H02M3/24 ,  H02M7/44

CPC classification number: H02M3/33592 ,  H02M3/33569 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1475 ,  Y02B70/1491 ,  Y02P80/112

Abstract: This disclosure provides control techniques for a resonant converter. In one embodiment, a resonant converter controller includes predictive gate drive circuitry configured to generate a predictive gate drive signal indicative of a time duration from a rising edge of a first drive signal for controlling a conduction state of a first inverter switch of a resonant converter system to a synchronous rectifier (SR) current zero crossing instant of a first SR switch of the resonant converter system, wherein the first tracking signal is based on at least the first drive signal and a voltage drop across the first SR switch. The resonant converter controller may also include SR gate drive shrink circuitry configured to generate an SR gate drive turn on delay signal to increase delay of SR on times in response to detection of a decrease in load current demand of the resonant converter system.