AC motor driving system and method thereof

    公开(公告)号:US09698721B2

    公开(公告)日:2017-07-04

    申请号:US14877943

    申请日:2015-10-08

    Abstract: AC motor driving system and driving method thereof are provided. The driving system and method are capable of increasing power factor, adjusting waveform of the DC ripple voltage for increasing driving efficiency. The driving system is basically constructed by connecting three circuits. The first circuit is a three-phase full wave rectifying circuit and is used to transfer commercial electricity to a first DC voltage. Then, the second circuit is used to transfer the first DC voltage to a second DC voltage that ripples voltage thereof having a semi-sinusoidal waveform. The third circuit is an AC driving circuit, and receives the second AC voltage for driving the AC motor. Thereby, the driving efficiency can be increased. The capacitance used in the present disclosure has low capacitance value, thus the power factor can be increased, and usage time of the AC motor driving apparatus can also be increased.

    Adjusting motor power
    202.
    发明授权
    Adjusting motor power 有权
    调整电机功率

    公开(公告)号:US09366193B2

    公开(公告)日:2016-06-14

    申请号:US12641515

    申请日:2009-12-18

    Applicant: Les F. Nelson

    Inventor: Les F. Nelson

    CPC classification number: F02C9/00 H02P6/08 H02P27/06 H02P2201/07

    Abstract: An example power management arrangement includes a motor controller configured to communicate power to a motor drive bridge to drive a motor. The motor controller is configurable to selectively receive power from each of a first power supply and a second power supply. The voltage of the power from the first power supply is different than a voltage of the power from the second power supply. An example power adjusting method includes receiving power at a motor controller, adjusting a voltage of the received power using the motor controller, communicating the power with the adjusted voltage from the motor controller to a motor drive bridge to drive a motor.

    Abstract translation: 示例性电源管理装置包括电动机控制器,该电动机控制器被配置为将功率传递到电动机驱动桥以驱动电动机。 电机控制器可配置为从第一电源和第二电源中的每一个选择性地接收电力。 来自第一电源的电力的电压不同于来自第二电源的电力的电压。 示例性功率调节方法包括在电动机控制器处接收电力,使用电动机控制器调节接收功率的电压,将来自电动机控制器的调整电压的功率传递到电动机驱动桥以驱动电动机。

    Controlling an electrically-driven actuator
    203.
    发明授权
    Controlling an electrically-driven actuator 有权
    控制电动执行器

    公开(公告)号:US09225284B2

    公开(公告)日:2015-12-29

    申请号:US13963853

    申请日:2013-08-09

    Applicant: Woodward, Inc.

    Inventor: David L. Ried

    Abstract: In some aspects, an actuation system includes an electrical positioning driver and an electrically-driven actuator. A voltage boost converter in the electrical positioning driver receives an input voltage. The voltage boost converter passes the input voltage to a voltage bus in the electrical positioning driver. The voltage on the voltage bus is converted to an actuator power signal that controls the electrically-driven actuator. The voltage boost converter boosts the voltage on the voltage bus to control a mechanical output performance of the electrically-driven actuator.

    Abstract translation: 在一些方面,致动系统包括电定位驱动器和电驱动致动器。 电气定位驱动器中的升压转换器接收输入电压。 升压转换器将输入电压传递到电气定位驱动器中的电压总线。 电压总线上的电压转换为控制电动执行器的执行器电源信号。 升压转换器提升电压总线上的电压,以控制电动执行器的机械输出性能。

    Transformer control device
    206.
    发明授权
    Transformer control device 有权
    变压器控制装置

    公开(公告)号:US08907647B2

    公开(公告)日:2014-12-09

    申请号:US13375603

    申请日:2010-05-20

    Inventor: Tomoaki Nakagawa

    Abstract: There is provided a control device which controls a transformer in accordance with a total loss imposed on a load driving system including the transformer and a load. In a control device of a transformer that boosts or drops an output voltage of a DC power supply and provides the output voltage to a load, the control device includes: a switching controller which performs switching control of the transformer; a load power deriving unit which derives load power; a transformer loss decrease amount deriving unit which derives a decrease amount of loss generated in the transformer, based on the load power derived by the load power deriving unit and a transformer ratio of the transformer, when the switching controller performs intermittent control of the transformer; a load loss increase amount deriving unit which derives an increase amount of loss generated in the load when the switching controller performs the intermittent control of the transformer; and a control command unit which instructs the switching controller to perform the intermittent control of the transformer when the decrease amount of transformer loss derived by the transformer loss decrease amount deriving unit is larger than the increase amount of load loss derived by the load loss increase amount deriving unit.

    Abstract translation: 提供了一种根据包括变压器和负载的负载驱动系统的总损耗来控制变压器的控制装置。 在变压器的控制装置中,升压或降低直流电源的输出电压并向负载提供输出电压,所述控制装置包括:执行变压器的开关控制的开关控制器; 负载功率单元,其导出负载功率; 变压器损耗减少量导出单元,当所述开关控制器执行所述变压器的间歇控制时,基于由所述负载导出单元导出的负载功率和所述变压器的变压器比,导出所述变压器中产生的损耗的减少量; 负载损失增加量导出单元,其导致当所述开关控制器执行所述变压器的间歇控制时在所述负载中产生的损耗的增加量; 以及控制指令单元,当变压器损失降低量导出单元导出的变压器损耗的减少量大于由负载损失增加量导致的负载损耗的增加量时,指示开关控制器执行变压器的间歇控制 派生单位

    Power supply device for electric vehicle
    208.
    发明授权
    Power supply device for electric vehicle 有权
    电动车用电源装置

    公开(公告)号:US08736218B2

    公开(公告)日:2014-05-27

    申请号:US13387600

    申请日:2011-06-20

    Abstract: The present invention provides a power supply device for an electric vehicle that allows highly efficient operation of a compressor inverter. A power supply device for motor vehicle 10 has: a main circuit 13 having a power source 11, a DC-DC converter 18, and a main inverter 17 that drives a main motor 12; an auxiliary circuit 15 having an auxiliary inverter 19 that drives an auxiliary motor 14, a first electrical circuit 23 that is connected to the main circuit 13 on a primary side of the DC-DC converter 18, a second electrical circuit 24 that is connected to the main circuit 13 on a secondary side of the DC-DC converter 18, and a connection circuit 30 configured to be capable of selecting one of the first electrical circuit 23 and the second electrical circuit 24 as a path for supplying a direct current voltage to the auxiliary inverter 19; and a control device 16 that controls the connection circuit 30 when the main motor 12 is in power running operation so that switching between the first electrical circuit 23 and the second electrical circuit 24 is performed corresponding to a required voltage of the auxiliary inverter 19.

    Abstract translation: 本发明提供一种用于电动车辆的供电装置,其允许压缩机逆变器的高效运行。 用于机动车辆10的电源装置具有:主电路13,其具有驱动主电动机12的电源11,DC-DC转换器18和主逆变器17; 具有驱动辅助电动机14的辅助逆变器19的辅助电路15,与DC-DC转换器18的初级侧的主电路13连接的第一电路23,与第二电路23连接的第二电路24, DC-DC转换器18的次级侧的主电路13以及能够选择第一电路23和第二电路24之一的连接电路30作为将直流电压提供给 辅助逆变器19; 以及控制装置16,其在主电动机12处于动力运行操作时控制连接电路30,使得对应于辅助逆变器19的所需电压进行第一电路23和第二电路24之间的切换。

    SAFETY FUNCTION CONTROL FOR AN ELECTRIC MACHINE AND METHOD OF OPERATING THE ELECTRIC MACHINE
    209.
    发明申请
    SAFETY FUNCTION CONTROL FOR AN ELECTRIC MACHINE AND METHOD OF OPERATING THE ELECTRIC MACHINE 有权
    电机的安全功能控制及电机操作方法

    公开(公告)号:US20140111128A1

    公开(公告)日:2014-04-24

    申请号:US14061892

    申请日:2013-10-24

    Abstract: An apparatus and a method actuate a frequency converter of an electric machine having a safety function, in particular a safe-torque-off (STO) function. Wherein, by a preferably clocked converter circuit, an electrically isolated output voltage is generated from an input voltage, from which output voltage a control signal is generated for the frequency converter for the operation thereof in accordance with standards and for triggering the safety function. An actuation signal is generated for a semiconductor switch which is periodically connected to the input voltage, and the output voltage is limited when the output voltage exceeds a switching threshold.

    Abstract translation: 一种装置和方法致动具有安全功能的电机的变频器,特别是安全转矩关断(STO)功能。 其中,通过优选时钟转换器电路,根据输入电压产生电隔离的输出电压,根据标准,输出电压产生用于变频器的控制信号以用于其操作,并用于触发安全功能。 产生周期性地连接到输入电压的半导体开关的致动信号,并且当输出电压超过开关阈值时输出电压被限制。

    AC motor drive device
    210.
    发明授权
    AC motor drive device 有权
    交流电机驱动装置

    公开(公告)号:US08653783B2

    公开(公告)日:2014-02-18

    申请号:US13978813

    申请日:2011-03-31

    Abstract: A circuit switching element is provided that switches a step-up/step-down bidirectional chopper circuit, arranged between a DC bus and a power storage element, to a first chopper circuit or to a second chopper circuit, whose step-up and step-down characteristics are in a complementary relation. The first and second chopper circuits are used together at a time of charge and discharge. Accordingly, an AC motor drive device having mounted therein a power storage system is obtained, in which the power storage system can perform charge and discharge to and from the power storage element, regardless of a bus voltage and can increase energy use efficiency.

    Abstract translation: 提供了一种电路开关元件,其将设置在DC总线和电力存储元件之间的升压/降压双向斩波电路切换到第一斩波电路或第二斩波电路,该第二斩波电路的升压和 下降特征是互补关系的。 第一和第二斩波电路在充放电时一起使用。 因此,获得了其中安装有蓄电系统的交流电动机驱动装置,其中蓄电系统可以与蓄电元件进行充电和放电,而不管总线电压如何,并且可以提高能量使用效率。

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