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：US20180269696A1

公开(公告)日：2018-09-20

申请号：US15463084

申请日：2017-03-20

Applicant: Keith Leonardo Shropshire

Inventor： Keith Leonardo Shropshire

IPC: H02J7/00 ,  H02M7/44 ,  H02P27/06 ,  H02J7/16 ,  H02P9/14

CPC classification number: H02P9/14 ,  H02J7/0068 ,  H02J7/324 ,  H02J7/35 ,  H02K53/00 ,  H02M7/44 ,  H02P27/06 ,  H02P27/14 ,  H02P2201/07 ,  H02P2201/09 ,  Y02T10/7005

Abstract: The power source is a battery (bank) is connected to a DC to AC power inverter. The DC to AC power inverter power and electric motor. The electric motor's rotor is connected to the rotor of an alternator with and alternator belt. The alternator is connected to the power source charged at full capacity at all time. The battery bank is then connected to a 2nd 24,000 watt DC to AC power inverter. The power inverters out-put is connected to a transformer for filtering and wave shaping. The transformers is connected to the circuits in the home or industry.

公开(公告)号：US10020756B2

公开(公告)日：2018-07-10

申请号：US15468317

申请日：2017-03-24

Applicant: FUJI ELECTRIC CO., LTD.

Inventor： Motoyoshi Kubouchi ,  Hao Hou

IPC: G05F1/575 ,  H02M7/537 ,  H02M1/32 ,  H02P27/06 ,  H02M3/156 ,  H02M3/158

CPC classification number: H02M7/537 ,  H02M1/32 ,  H02M3/156 ,  H02M3/158 ,  H02P27/06 ,  H02P2201/09

Abstract: In a boost chopper circuit, a backflow prevention diode circuit has a withstand voltage equal to or more than a withstand voltage of a capacitor circuit connected in series to the backflow prevention diode circuit between opposite ends of a switching device circuit.

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：US09929636B2

公开(公告)日：2018-03-27

申请号：US15117285

申请日：2014-02-19

Applicant: Mitsubishi Electric Corporation

Inventor： Yosuke Shinomoto ,  Kazunori Hatakeyama ,  Shota Kamiya ,  Keisuke Uemura

IPC: H02M1/42 ,  H02M1/12 ,  H02M7/06 ,  H02P27/08 ,  F25B49/02

CPC classification number: H02M1/12 ,  F25B49/025 ,  F25B2600/021 ,  H02M1/42 ,  H02M1/4216 ,  H02M1/4225 ,  H02M7/06 ,  H02P27/08 ,  H02P2201/09 ,  Y02B30/741 ,  Y02B70/126

Abstract: A first reactor is provided on the input side of a rectifying circuit that rectifies AC power (on the side of an AC power supply), and on the output side of the rectifying circuit (on the side of a load), first and second capacitors that are connected in series to each other, and first and second switching elements that switch between charging and not charging of the first and second capacitors, respectively, are provided, a second capacitor group in Y-connection, provided with three capacitors, each of which is connected to each phase-terminal of the first reactor on the side of the rectifying circuit, is connected to the midpoint of the first and second switching elements, and the output voltage to the load is boosted, while the on-duty of the first switching element and the on-duty of the second switching element are controlled to be equal to each other.

公开(公告)号：US20170288578A1

公开(公告)日：2017-10-05

申请号：US15478524

申请日：2017-04-04

Applicant: Toshiba Carrier Corporation

Inventor： Masaki Kanamori ,  Keiichi Ishida ,  Yohei Kubota ,  Kenta Yamamoto

IPC: H02P6/14 ,  H02M1/32 ,  H02M5/458

CPC classification number: H02P6/14 ,  H02M1/32 ,  H02M1/4225 ,  H02M1/44 ,  H02M5/458 ,  H02M2001/0032 ,  H02M2001/348 ,  H02P27/06 ,  H02P2201/09 ,  Y02B70/126 ,  Y02B70/16

Abstract: According to one embodiment, the controller configured to, when an operation of the boosting circuit is in the boosting mode, and if an instantaneous value Ia of a current flowing through the reactor lowers to a value smaller than or equal to a set value Ias, switch the operation of the boosting circuit from the boosting mode to the non-boosting mode.

公开(公告)号：US09735697B2

公开(公告)日：2017-08-15

申请号：US15024218

申请日：2014-08-27

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Kenichi Sakakibara

IPC: H02M1/08 ,  H02M5/458 ,  H02M1/42 ,  H02P27/06 ,  H02M7/48 ,  H02J7/34

CPC classification number: H02M5/458 ,  H02J7/345 ,  H02M1/42 ,  H02M1/4225 ,  H02M7/48 ,  H02P27/06 ,  H02P2201/09 ,  Y02B40/90 ,  Y02B70/126

Abstract: A converter performs full-wave rectification on a single-phase voltage, thus outputting a rectified voltage across DC power supply lines. An inverter receives the rectified voltage and then supplies a three-phase AC current to an inductive load. Between the DC power supply lines is connected a charge and discharge circuit. The charge and discharge circuit includes a buffer circuit and a boost circuit. The buffer circuit includes a series connection between a capacitor and a switch. The boost circuit, which may be configured by a boost chopper, includes a switch, a reactor and a diode. The charge and discharge circuit provides and receives part of pulsations of the power input to the converter between the DC power supply lines.

公开(公告)号：US20170104436A1

公开(公告)日：2017-04-13

申请号：US15285488

申请日：2016-10-05

Applicant: HONDA MOTOR CO., LTD.

Inventor： Ryota UNNO ,  Masahiro SHIMADA

IPC: H02P29/024 ,  B60L11/18 ,  H02P27/06

CPC classification number: H02P29/024 ,  B60L50/51 ,  H02P27/06 ,  H02P29/0241 ,  H02P2201/09

Abstract: A drive system includes a first energy storage, a second energy storage, a voltage transformer, a drive apparatus, a detector, and circuitry. The first energy storage outputs a first voltage. The second energy storage outputs a second voltage different from the first voltage. The voltage transformer transforms at least one of the first voltage and the second voltage. The drive apparatus is driven with power supplied from at least one of the first energy storage and the second energy storage. The detector detects a fault in at least one of the first energy storage and the second energy storage. The circuitry is configured to control the voltage transformer in a first control mode or in a second control mode.

公开(公告)号：US20160294312A1

公开(公告)日：2016-10-06

申请号：US14894609

申请日：2013-09-30

Applicant: MITSUBISHI ELECTRIC CORPORATION

Inventor： Akihiro TSUMURA ,  Kenta YUASA ,  Shinsaku KUSUBE

IPC: H02P6/28

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.

Abstract translation: 根据本发明的电动机驱动控制装置包括：三相整流器，对三相交流电源提供的交流电压进行整流; 包括电抗器，开关元件和防回流元件的升压电路，用于升压从三相整流器供给的直流母线电压; 平滑电容器，用于平滑升压电路的输出; 以及将由平滑电容器平滑的DC总线电压转换为AC电压并将AC电压提供给电动机的逆变器电路。 在升压电路的升压动作的起动动作或其升压动作的停止动作中，电动机的转速固定。

公开(公告)号：US20160241073A1

公开(公告)日：2016-08-18

申请号：US15024393

申请日：2013-11-26

Applicant: MITSUBISHI ELECTRIC CORPORATION

Inventor： Kazunori HATAKEYAMA ,  Keisuke UEMURA ,  Yosuke SHINOMOTO

IPC: H02J7/00 ,  H02M1/42 ,  H02M7/5395 ,  H02M1/12 ,  H02P27/08 ,  H02M7/06

CPC classification number: H02J7/0072 ,  H02J7/0026 ,  H02J7/345 ,  H02M1/12 ,  H02M1/32 ,  H02M1/4216 ,  H02M1/4225 ,  H02M3/158 ,  H02M7/06 ,  H02M7/487 ,  H02M7/5387 ,  H02M7/5395 ,  H02M2001/007 ,  H02P27/085 ,  H02P2201/09 ,  Y02B70/126

Abstract: The DC power-supply device includes a rectifier circuit rectifying an alternating current, a reactor connected to an input or output side of the rectifier circuit, a first capacitor and a second capacitor serially connected between output terminals to a load, and a charging unit that selectively charges one or both of the first capacitor and the second capacitor. A ratio, to a period obtained by combining a charging period and a non-charging period of a pair of the first capacitor and the second capacitor, of the non-charging period, is controlled according to an operating condition of the load, to change a charging frequency of the first capacitor and the second capacitor based on the ratio, at the time of controlling an output voltage to the load.

Abstract translation: 直流电源装置包括整流电路的整流电路，连接到整流电路的输入或输出侧的电抗器，串联连接到负载的输出端子之间的第一电容器和第二电容器，以及充电单元， 选择性地对第一电容器和第二电容器中的一者或两者进行充电。 根据负载的运行状态来控制与非充电期间的一对第一电容器和第二电容器的充电期间和非充电期间的组合所获得的期间的比率， 基于在控制对负载的输出电压时的比率的第一电容器和第二电容器的充电频率。