公开(公告)号：EP2978117A4

公开(公告)日：2017-03-15

申请号：EP13879213

申请日：2013-03-19

Applicant: MITSUBISHI ELECTRIC CORP

Inventor： ARISAWA KOICHI ,  SHIMOMUGI TAKUYA ,  YAMAKAWA TAKASHI ,  UEMURA KEISUKE ,  SHINOMOTO YOSUKE ,  YUASA KENTA ,  TSUMURA AKIHIRO ,  MATSUBARA NORIYUKI ,  KUSUBE SHINSAKU

IPC: H02M3/155 ,  H02M1/00 ,  H02M7/12

CPC classification number: H02M3/33546 ,  F25B31/006 ,  H02M3/155 ,  H02M2001/0051 ,  Y02B70/1491

Abstract: Provided is a power converter for converting electric power between a power source 1 and a load 9, including: a boosting device 2 including a boost rectifier 23 configured to prevent a backflow of a current from the load 9 side to the power source 1 side, the boosting device 2 being configured to change a voltage of electric power supplied from the power source 1 to a predetermined voltage; a commutation device 4 configured to perform a commutation operation of causing a current flowing through the boosting device 2 to flow through an other path; and a controller 100 configured to perform control related to the voltage change of the boosting device 2 and control related to the commutation operation of the commutation device 4, in which the commutation device 4 is configured to flow, when the commutation device 4 performs the commutation operation, a current generating a voltage causing reverse recovery of the boost rectifier 23 to the commutation device 4 side.

Abstract translation: 提供了一种用于在电源1和负载9之间转换电力的功率转换器，包括：升压装置2，包括升压整流器23，其被配置为防止电流从负载9侧逆流到电源1侧， 升压装置2被配置为将从电源1供给的电力的电压改变为预定电压; 换向装置4，被配置为执行使流过所述升压装置2的电流流过另一路径的换向动作; 以及控制器100，被配置为执行与升压装置2的电压变化相关的控制，以及当换向装置4执行换向时与换流装置4的换向运行有关的控制，换流装置4被配置为流动 产生导致升压整流器23向换向装置4侧反向恢复的电压的电流。

公开(公告)号：EP3018808A4

公开(公告)日：2017-02-15

申请号：EP13888830

申请日：2013-07-02

Applicant: MITSUBISHI ELECTRIC CORP

Inventor： ARISAWA KOICHI ,  SHIMOMUGI TAKUYA ,  YAMAKAWA TAKASHI ,  UEMURA KEISUKE ,  MATSUBARA NORIYUKI ,  KUSUBE SHINSAKU ,  YUASA KENTA ,  TSUMURA AKIHIRO

IPC: H02M3/155 ,  F25B49/02 ,  H01F27/00 ,  H01F27/32 ,  H02M1/00 ,  H02M3/158 ,  H02M7/539

CPC classification number: H02M7/539 ,  F25B49/025 ,  H01F27/006 ,  H01F27/323 ,  H02M3/158 ,  H02M2001/0051 ,  Y02B70/1491

Abstract: A power conversion device configured to convert electric power from a power source 1 to a load 9, the power conversion device including: a voltage boosting device 2 including a boost rectification unit 23 configured to prevent backflow of a current from a side of the load 9 to a side of the power source 1, the voltage boosting device 2 being configured to change voltage of power from the power source 1 to a predetermined voltage; and a commutation device 4 including a transformer 41 and configured to perform commutation operation, in the commutation operation, the transformer 41 applying a voltage induced by a current flowing through a primary-side winding to a secondary-side winding, which is on an other path different from that for the voltage changing device 2, wherein the transformer 41 includes at least part of windings that are wound such that an inter-winding distance is uniform.

公开(公告)号：EP3001121A4

公开(公告)日：2017-01-04

申请号：EP13885425

申请日：2013-05-23

Applicant: MITSUBISHI ELECTRIC CORP

Inventor： HATAKEYAMA KAZUNORI ,  KAMIYA SHOTA ,  YUASA KENTA ,  MATSUSHITA SHINYA ,  KUSUBE SHINSAKU

IPC: F25B1/00 ,  F24F11/02 ,  F25B1/10 ,  F25B13/00 ,  F25B40/00 ,  F25B49/02 ,  H02M7/48 ,  H02M7/5395

CPC classification number: F25B49/025 ,  F25B1/10 ,  F25B13/00 ,  F25B40/00 ,  F25B2313/003 ,  F25B2341/0662 ,  F25B2400/13 ,  F25B2600/021 ,  H02M7/5395 ,  Y02B30/741

公开(公告)号：EP2942862A4

公开(公告)日：2016-08-24

申请号：EP13870095

申请日：2013-01-07

Applicant: MITSUBISHI ELECTRIC CORP

Inventor： YUASA KENTA

IPC: H02M7/48 ,  F24F11/02 ,  H02J3/26 ,  H02M1/14 ,  H02M7/06 ,  H02P27/06

CPC classification number: H02M5/458 ,  H02M1/14 ,  H02M1/36 ,  H02M3/155 ,  H02P27/06

Abstract: A power conversion apparatus includes: a rectifier for rectifying an AC voltage supplied from an AC power supply; a first smoothing capacitor and a second smoothing capacitor connected in parallel to each other, configured to smooth and charge an output from the rectifier; an inrush current preventing circuit connected in series to the first smoothing capacitor, the inrush current preventing circuit including an inrush preventing resistor for suppressing an inrush current and a first relay connected in parallel to the inrush preventing resistor; a second relay connected in series to the second smoothing capacitor; an inverter circuit for converting the output smoothed by the first smoothing capacitor and the second smoothing capacitor into an AC voltage and outputting the AC voltage to a load; and relay controlling means for controlling a switching operation of the first relay and the second relay. Further, the relay controlling means sets, when the operation of the inverter circuit is started, the first relay to an on state and the second relay to an off state, and controls, while the inverter circuit is operated, the operation of the second relay based on the state of the load.

公开(公告)号：JP2013183571A

公开(公告)日：2013-09-12

申请号：JP2012046911

申请日：2012-03-02

Applicant: Mitsubishi Electric Corp ,  三菱電機株式会社

Inventor： YUASA KENTA ,  SASAMOTO YOSUKE ,  SHIMOMUGI TAKUYA

IPC: H02M7/48 ,  F24F1/08 ,  H02M3/155

CPC classification number: Y02B70/1483

Abstract: PROBLEM TO BE SOLVED: To reduce the mounting surface and the cost by detecting a current, that cannot be detected directly by a current detector, based on a current that can be detected by a current detector by calculation.SOLUTION: By utilizing the fact that the path of a flowing current changes depending on the state of a switching element 5 in a converter, a load current iflowing through an inverter 8, that cannot be detected directly in a current detection unit, is detected from a reactor current iand a capacitor iby calculation.

Abstract translation: 要解决的问题：通过检测由电流检测器直接检测的电流，通过计算可以通过电流检测器检测的电流来减小安装面和成本。解决方案：通过利用以下事实： 流动电流的路径根据转换器中的开关元件5的状态而改变，从电抗器电流i和电容器iby检测到通过逆变器8的负载电流，其不能直接在电流检测单元中检测 计算。

公开(公告)号：JP2012050177A

公开(公告)日：2012-03-08

申请号：JP2010187393

申请日：2010-08-24

Applicant: Mitsubishi Electric Corp ,  三菱電機株式会社

Inventor： SASAMOTO YOSUKE ,  SHIMOMUGI TAKUYA ,  KUSUBE SHINSAKU ,  YUASA KENTA

IPC: H02M7/12

CPC classification number: Y02B70/1483

Abstract: PROBLEM TO BE SOLVED: To provide a harmonic suppressor that charges a bootstrap capacitor without having an adverse effect on an AC power supply, and to provide an air conditioner having the same.SOLUTION: A harmonic suppressor 7 applies a duty limit so as to satisfy 0%≤duty ratio

Abstract translation: 要解决的问题：提供对自举电容器充电而不对交流电源产生不利影响的谐波抑制器，并提供具有该自谐振抑制器的空调机。 解决方案：当开关元件12r-12t和12x-12z进行PWM控制时，谐波抑制器7施加占空比限制，以满足0％≤占空比<100％。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2013219985A

公开(公告)日：2013-10-24

申请号：JP2012090567

申请日：2012-04-11

Applicant: Mitsubishi Electric Corp ,  三菱電機株式会社

Inventor： YUASA KENTA

IPC: H02M3/155 ,  H02M7/48

Abstract: PROBLEM TO BE SOLVED: To provide: a power conversion device capable of detecting variations in power source environments, such as voltage imbalance and voltage variation of an AC power source; a compressor; a blower; an air conditioner; and a refrigerator, each using the power conversion device.SOLUTION: On the basis of an output voltage, a reactor current and a command voltage of a converter part 10, a power conversion device finds a switching command value D according to a ratio of an output voltage of a rectifier to the command voltage. The power conversion device controls the driving of a switching element 12 of the converter part 10 on the basis of the switching command value D, and also detects a degree of variation in power source environments that is at least one of voltage imbalance and voltage variation of an AC power source on the basis of the switching command value D.

Abstract translation: 要解决的问题：提供：能够检测诸如电压不平衡和AC电源的电压变化的电源环境变化的电力转换装置; 压缩机 鼓风机 空调; 以及各自使用电力转换装置的冰箱。解决方案：根据输出电压，电抗器电流和转换器部10的指令电压，功率转换装置根据比例的比例求出切换指令值D 整流器的输出电压达到指令电压。 功率转换装置根据开关指令值D控制转换器部分10的开关元件12的驱动，并且还检测作为电压不平衡和电压变化中的至少一个的电源环境的变化程度 基于开关指令值D的交流电源。

公开(公告)号：JP2012237533A

公开(公告)日：2012-12-06

申请号：JP2011108267

申请日：2011-05-13

Applicant: Mitsubishi Electric Corp ,  三菱電機株式会社

Inventor： KUSUBE SHINSAKU ,  YUASA KENTA

IPC: F25B49/02 ,  H02M7/48 ,  H02P27/06

CPC classification number: Y02B70/1483

Abstract: PROBLEM TO BE SOLVED: To provide a control device for an air conditioner, which enables reduction in size, weight and cost of a heat sink for radiating heat of a reactor and a switching element.SOLUTION: The control device for an air conditioner includes: a reactor R and a switching element S which are provided as main circuit components of at least one of an inverter device for driving the compressor or the blower of the air conditioner and a higher harmonic suppression device 20 for suppressing higher harmonic generated by the inverter device; a heat sink H for radiating heat generated from the switching element S; and a temperature detecting element T for detecting the temperature of the reactor R. The reactor R is disposed on the upstream side of an air path, the heat sink H is disposed on the downstream side of the air path, the switching element S comprises a wide band gap semiconductor. The control device further includes a control circuit for protecting the reactor R from overheating based on the detected temperature of the temperature detecting element T.

Abstract translation: 要解决的问题：提供一种用于空调的控制装置，其能够减小用于散热反应堆和开关元件的热量的散热器的尺寸，重量和成本。 解决方案：空调的控制装置包括：反应器R和开关元件S，其设置为用于驱动空调的压缩机或鼓风机的逆变器装置中的至少一个的主电路部件，以及 用于抑制由逆变器装置产生的高次谐波的高次谐波抑制装置20; 用于散热从开关元件S产生的热量的散热器H. 以及用于检测反应器R的温度的温度检测元件T.反应器R设置在空气通路的上游侧，散热器H设置在空气通路的下游侧，开关元件S包括 宽带隙半导体。 控制装置还包括控制电路，用于根据温度检测元件T的检测温度来保护反应器R免于过热。（C）2013，JPO＆INPIT

公开(公告)号：JP2014236646A

公开(公告)日：2014-12-15

申请号：JP2013118790

申请日：2013-06-05

Applicant: 三菱電機株式会社 ,  Mitsubishi Electric Corp

Inventor： YAMAMOTO KEIICHI ,  KUSUBE SHINSAKU ,  YUASA KENTA ,  TSUMURA AKIHIRO

IPC: H02M3/00 ,  F25B49/02 ,  H02M7/48

Abstract: 【課題】昇圧した母線電圧が目標電圧より低くなる場合、昇圧後の母線電圧を上昇させるように補正することができる制御装置を得る。【解決手段】制御装置20は、交流電圧を直流電圧である母線電圧に変換するコンバータ回路7と、母線電圧を昇圧する母線電圧昇圧回路8と、昇圧後の母線電圧の電圧値を検出する母線電圧検出回路10と、昇圧後の母線電圧を所定周波数の交流電圧に変換して出力するインバータ回路9と、母線電圧検出回路10の検出値が目標電圧となるように母線電圧昇圧回路8を制御する制御基板2と、を備えた制御装置であって、昇圧後の母線電圧の電圧値を検出する母線電圧検出回路11を更に有する。そして、制御基板2は、母線電圧検出回路10の検出値V1と母線電圧検出回路11の検出値V2との関係がV1>V2となる場合、(V1−V2)の値に基づいて、目標電圧を補正する。【選択図】図2

Abstract translation: 要解决的问题：提供一种能够在升压后校正总线电压以在升压总线电压低于目标电压时增加电压的控制装置。解决方案：控制装置20包括：转换器电路 7将AC电压转换为作为DC电压的总线电压; 总线电压升压电路8升高总线电压; 总线电压检测电路10，检测加压后的总线电压的电压值; 逆变器电路9，其在升压成具有预定频率的AC电压之后转换总线电压并输出AC电压; 以及控制母线电压升压电路8的控制板2，使得母线电压检测电路10的检测值成为目标电压。 控制装置20还具备在升压后检测总线电压的电压值的母线电压检测电路11。 当总线电压检测电路10的检测值V1与总线电压检测电路11的检测值V2之间的关系为V1> V2时，控制基板2根据（ V1-V2）。

公开(公告)号：JP2014057521A

公开(公告)日：2014-03-27

申请号：JP2013270060

申请日：2013-12-26

Applicant: Mitsubishi Electric Corp ,  三菱電機株式会社

Inventor： SHIMOMUGI TAKUYA ,  YUASA KENTA ,  SHINOMOTO YOSUKE ,  YAMADA TOMOO ,  KUSUBE SHINSAKU

IPC: H02M7/12 ,  H02M3/155

Abstract: PROBLEM TO BE SOLVED: To provide a power conversion device capable of enhancing suppression effect of a harmonic current while reducing operation load.SOLUTION: A power conversion device includes: a chopper circuit section having a rectifier rectifying an AC power source, a step-up reactor, a switching element, and a backflow prevention element and stepping up an output of the rectifier by chopping; switching control means 10 for controlling the switching element by a driving pulse; a smoothing capacitor smoothing an output of the chopper circuit section; bus-line-voltage detection means; and reactor-current detection means. The switching control means 10 includes: on-duty calculation means 29 for calculating the on-duty of the driving pulse on the basis of a bus-line voltage and a reactor current; rectifier-current estimation means 26 for estimating a rectifier voltage on the basis of at least the reactor current; on-duty theoretical value calculation means 27 for calculating the theoretical value of the on-duty according to the rectifier voltage; and on-duty compensation means 30 for compensating the on-duty on the basis of the on-duty and the theoretical value.

Abstract translation: 要解决的问题：提供一种能够在降低运行负荷的同时增强谐波电流的抑制效果的电力转换装置。解决方案：电力转换装置包括：斩波电路部分，其具有对交流电源进行整流整流，升压 电抗器，开关元件和防回流元件，并通过斩波加大整流器的输出; 用于通过驱动脉冲控制开关元件的开关控制装置10; 平滑电容器，对所述斩波电路部分的输出进行平滑; 总线电压检测装置; 和电抗器电流检测装置。 开关控制装置10包括：占空比计算装置29，用于基于总线电压和电抗器电流来计算驱动脉冲的占空比; 整流器电流估计装置26，用于至少基于电抗器电流来估计整流器电压; 占空比理论值计算单元27，用于根据整流器电压计算占空比的理论值; 职责上的补偿是指在职责和理论价值的基础上补偿值班30。