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公开(公告)号：US20240136967A1
公开(公告)日：2024-04-25
申请号：US18469843
申请日：2023-09-18
Applicant: Mitsubishi Electric Corporation
Inventor： Tomonori YAMADA
IPC: H02P27/06 , B60L15/20 , H02P29/024 , H02P29/60
CPC classification number: H02P27/06 , B60L15/20 , H02P29/027 , H02P29/60 , B60L2210/42 , B60L2240/421 , B60L2240/423 , B60L2240/425 , H02P2201/11
Abstract: A loss in each of a converter, an inverter, and a motor changes according to operation based on the rotation speed of the motor or the like. Thus, in order to efficiently perform operation, appropriate control needs to be performed according to the voltage of a DC power supply and operation of the motor. The present disclosure is characterized by including a controller which controls a switching element of a converter according to the torque and the rotation speed of a motor on the basis of a loss in at least one of the motor, an inverter, and the converter.
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公开(公告)号：US11940194B2
公开(公告)日：2024-03-26
申请号：US17173679
申请日：2021-02-11
Applicant: LG Electronics Inc.
Inventor： Jinho Cho , Taeyoung Park , Jongwon Heo
CPC classification number: F25B49/025 , F25B49/022 , H02M1/084 , H02M3/156 , H02M5/458 , H02P5/46 , H02P27/045 , H02P27/08 , F25B2600/021 , F25B2600/024 , F25B2600/11 , F25B2700/151 , F25B2700/171 , H02P2201/03 , H02P2201/07 , H02P2201/11
Abstract: A power converting apparatus includes: a rectifying unit configured to rectify an input AC power, a buck converter that is configured to step down a voltage of the rectified power and that is configured to output DC power having the step down voltage, a first inverter that is connected to an output terminal of the buck converter and that is configured to convert the DC power into AC power to drive a first motor, a second inverter that is connected to the output terminal of the buck converter, that is disposed in parallel to the first inverter, and that is configured to convert the DC power into AC power to drive a second motor, and a converter controller configured to control an output voltage of the DC power of the buck converter.
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公开(公告)号：US20230318507A1
公开(公告)日：2023-10-05
申请号：US18192766
申请日：2023-03-30
Applicant: SEIKO EPSON CORPORATION
Inventor： Junpei NAKAYAMA
CPC classification number: H02P27/08 , H02P23/26 , H02P2201/03 , H02P2201/11 , H02P2201/15
Abstract: A control apparatus includes a drive circuit unit to which regenerative electric power is input, a discharge resistance unit parallel-coupled to the drive circuit unit, to which the regenerative electric power is input from the drive circuit unit, and, when a voltage value of the regenerative electric power exceeds a threshold value, consuming electric power, a second converter circuit unit parallel-coupled to a first converter circuit unit and converting and outputting an alternating current into a direct current, a step-down circuit unit stepping down and outputting a voltage of the current output from the second converter circuit unit, an energization control circuit unit actuated by the direct current and controlling the drive circuit unit, and a regenerative electric power supply unit having a regenerative diode coupled to the discharge resistance unit and outputting a direct current of the regenerative electric power to the step-down circuit unit.
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公开(公告)号：US20180219546A1
公开(公告)日：2018-08-02
申请号：US15420827
申请日：2017-01-31
Applicant: Ford Global Technologies, LLC
Inventor： Shuitao Yang , Fan Xu , Yan Zhou , Lihua Chen , Mohammed Khorshed Alam
CPC classification number: H03K17/166 , B60L11/1803 , B60L15/02 , B60L2210/14 , H02M1/08 , H02M1/088 , H02M3/155 , H02M7/483 , H02M7/5387 , H02M7/5395 , H02M2001/0058 , H02M2001/007 , H02P27/08 , H02P2201/07 , H02P2201/09 , H02P2201/11 , H03K17/0822 , H03K17/165 , H03K17/168 , H03K2217/009 , Y02T10/645 , Y02T10/7005 , Y02T10/7225 , Y02T10/92
Abstract: A gate driver of a power device includes a power supply and a resonant circuit. The power supply may have a positive potential and a negative potential. The resonant circuit may include an inductor and be configured to recirculate charge during turn-off by inducing a first field based on a positive charge from a gate caused by the positive potential, and in response to reversal of a voltage across the inductor, collapsing the first field to draw charge from the gate.
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公开(公告)号：US09419548B2
公开(公告)日：2016-08-16
申请号：US14220256
申请日：2014-03-20
Applicant: ebm-papst Mulfingen GmbH & Co. KG
Inventor： Daniel Konig , Thomas Brand
CPC classification number: H02P6/28 , H02P29/0241 , H02P29/027 , H02P2201/11
Abstract: The invention refers to a method for controlling a brushless, electronically commutated electric motor, a main AC voltage being rectified into an intermediate circuit direct voltage and this direct voltage being fed by an intermediate circuit containing an intermediate circuit capacitor to an inverter which is controlled by a motor control means for feeding and commutating the electric motor whereby the intermediate circuit direct voltage is monitored in respect of its voltage level and is compared with a predetermined limiting value and, on reaching or exceeding the limiting value, the intermediate circuit direct voltage is limited to the predetermined limiting value by clocked disconnection and reconnection.
Abstract translation: 本发明涉及一种用于控制无刷电子换向电动机的方法，将主交流电压整流为中间电路直流电压，该直流电压由包含中间电路电容器的中间电路馈送到逆变器，逆变器由 电动机控制装置，用于馈送和换向电动机，由此相对于其电压电平监测中间电路直流电压并与预定的极限值进行比较，并且在达到或超过极限值时，中间电路直流电压被限制 通过计时断开和重新连接到预定的限制值。
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Patent Agency Ranking
公开(公告)号：US20140285126A1
公开(公告)日：2014-09-25
申请号：US14220256
申请日：2014-03-20
Applicant: ebm-papst Mulfingen GmbH & Co. KG
Inventor： Daniel Konig , Thomas Brand
IPC: H02P6/00
CPC classification number: H02P6/28 , H02P29/0241 , H02P29/027 , H02P2201/11
Abstract: The invention refers to a method for controlling a brushless, electronically commutated electric motor, a main AC voltage being rectified into an intermediate circuit direct voltage and this direct voltage being fed by an intermediate circuit containing an intermediate circuit capacitor to an inverter which is controlled by a motor control means for feeding and commutating the electric motor whereby the intermediate circuit direct voltage is monitored in respect of its voltage level and is compared with a predetermined limiting value and, on reaching or exceeding the limiting value, the intermediate circuit direct voltage is limited to the predetermined limiting value by clocked disconnection and reconnection.
Abstract translation: 本发明涉及一种用于控制无刷电子换向电动机的方法，将主交流电压整流为中间电路直流电压，该直流电压由包含中间电路电容器的中间电路馈送到逆变器，逆变器由 电动机控制装置，用于馈送和换向电动机，由此相对于其电压电平监测中间电路直流电压并与预定的极限值进行比较，并且在达到或超过极限值时，中间电路直流电压被限制 通过计时断开和重新连接到预定的限制值。
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47.发明申请Apparatus for Continued Operation of an Electric Motor During an Interruption in Input Power 有权在输入电源中断期间继续操作电动机的装置公开(公告)号：US20130043813A1
公开(公告)日：2013-02-21
申请号：US13564811
申请日：2012-08-02
Applicant: Michael O. Lucas , Rick L. Tennessen , Harry W. Schulz , William S. Hammel , James J. Sewell
Inventor： Michael O. Lucas , Rick L. Tennessen , Harry W. Schulz , William S. Hammel , James J. Sewell
IPC: H02P27/05
CPC classification number: H02P29/022 , H02P29/025 , H02P29/032 , H02P2201/11
Abstract: An apparatus is provided for controlling operation of an electric motor through use of an additional power storage arrangement connected across the DC busses of a motor drive and controlling the speed of the motor. The additional power storage arrangement includes an additional capacitor arrangement and a rate limiting arrangement in a series circuit relationship with one another.
Abstract translation: 提供了一种用于通过使用连接在电动机驱动器的直流总线上并且控制电动机的速度的附加蓄电装置来控制电动机的操作的装置。 附加的电力存储装置包括彼此串联电路关系的附加电容器布置和速率限制布置。
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公开(公告)号：US20100148711A1
公开(公告)日：2010-06-17
申请号：US12600551
申请日：2008-06-12
Applicant: Yugo Tadano
Inventor： Yugo Tadano
IPC: H02P23/14
CPC classification number: H02P6/18 , H02P6/153 , H02P21/0089 , H02P27/02 , H02P2201/07 , H02P2201/11
Abstract: [Problem] In a pseudo-current source inverter which drives a motor at a high speed, a current phase adjustment is assured and facilitated to perform a field-weakening control or suppress a terminal voltage saturation at a time of the high-speed motor drive. [Means For Solving Problem] A phase advance correction is carried out for a magnetic flux phase information from which a 120 degree conduction pattern is obtained with a motor terminal voltage as a reference phase. The phase advance correction includes the correction of differentiating the terminal voltage detection signals of the motor, the adjustment of enlarging the phase advance correction quantity in a case where the motor load current is large, and delays the gate signals of the 120 degree conduction pattern in accordance with the speed estimation value through a delay counter and carries out the phase advance correction as the rising edge timing of the subsequent gate signal at the subsequent step phase. Furthermore, the error correction is carried out for the phase advance correction quantity in accordance with a variation tendency of the speed estimation value and a detection value of a direct current of the inverter.
Abstract translation: [问题]在以高速驱动电动机的伪电流源逆变器中，确保电流相位调整并且便于执行磁场弱化控制或抑制高速电动机驱动时的端子电压饱和 。 解决问题的手段对于以电动机端子电压作为基准相位获得120度导通图案的磁通量相位信息，进行相位前进校正。 相位超前校正包括对电动机的端子电压检测信号进行微分化的校正，在电动机负载电流大的情况下调整相位超前校正量的扩大，并将120度导通图案的栅极信号延迟 根据通过延迟计数器的速度估计值，并且执行相位超前校正作为随后步进阶段的后续门信号的上升沿定时。 此外，根据速度估计值的变化趋势和逆变器的直流电流的检测值，对相位超前校正量进行纠错。
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公开(公告)号：US20070018616A1
公开(公告)日：2007-01-25
申请号：US11185422
申请日：2005-07-20
Applicant: Mahesh Shah , George Seffernick
Inventor： Mahesh Shah , George Seffernick
IPC: H02P9/14
CPC classification number: H02P9/48 , H02P2101/30 , H02P2201/09 , H02P2201/11
Abstract: A voltage regulation system maintains the output voltage of a permanent magnet generator at an essentially constant level. The stator coils located within the permanent magnet generator are divided into a number of sub-coils. A buck/boost voltage can be applied to selected sub-coils such that the output voltage generated by the permanent magnet generator is increased or decreased. A number of switches are connected to the sub-coils to allow the sub-coils to be connected in a number of different configurations. Connecting the sub-coils in a particular configuration and applying a buck/boost voltage to selected sub-coils based on the monitored output voltage allows the voltage regulation system to maintain an essentially constant output voltage.
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公开(公告)号：US06876171B2
公开(公告)日：2005-04-05
申请号：US10414400
申请日：2003-04-16
Applicant: Jae-Choon Lee
Inventor： Jae-Choon Lee
CPC classification number: H02M5/458 , H02M2001/007 , H02P29/50 , H02P2201/11
Abstract: A driving apparatus of a three-phase induction motor includes: a three-phase power supply unit for supplying three-phase power; a rectifier for rectifying the three phase voltage supplied from the three phase power supply unit; a voltage reducing unit for reducing a DC voltage generated from the rectifier and outputting a stabilized DC voltage; and an inverter unit for varying the DC voltage outputted from the voltage reducing unit to a three-phase AC voltage and driving a three-phase induction motor. A power-factor degradation generated during supplying a DC voltage to the inverter to drive the three-phase induction motor is prevented, a harmonic wave is removed, and because a high-priced inverter component is not necessary, its relevant expense is reduced.
Abstract translation: 三相感应电动机的驱动装置包括：三相电源单元，用于提供三相电力; 用于整流从三相电源单元提供的三相电压的整流器; 电压降低单元，用于降低从整流器产生的DC电压并输出稳定的DC电压; 以及逆变器单元，用于将从电压降低单元输出的DC电压改变为三相AC电压并驱动三相感应电动机。 防止向逆变器提供DC电压而产生的驱动三相感应电动机所产生的功率因数降低，除去了谐波，并且由于不需要高价格的逆变器部件，因此降低了其相关费用。
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