Power supply device and control method thereof
    191.
    发明授权
    Power supply device and control method thereof 有权
    电源装置及其控制方法

    公开(公告)号:US07113380B2

    公开(公告)日:2006-09-26

    申请号:US10661573

    申请日:2003-09-15

    Inventor: Jang-hyoun Youm

    CPC classification number: H02H9/001 H02P2201/07 Y02P80/112

    Abstract: A power supply device for inverting power to be supplied to a motor and a method of controlling the power supply device. The power supply device includes an inrush protection (IP) circuit, a power factor correction (PFC) circuit and an overvoltage protection (OP) circuit. A controller and a pair of relays selectively connect predetermined components so that at least one component is selectively changed from operation in one of the IP, PFC and OP circuits to operation in another of the IP, PFC and OP circuits in response to a detected value of an inverter input voltage. The inrush protection circuit operates in a start up mode; the PFC circuit operates while normally driving the motor; and the overvoltage protection circuit operates where the inverter input voltage increases due to regeneration by the motor.

    Abstract translation: 用于反转供给电动机的电力的电源装置和控制供电装置的方法。 电源装置包括浪涌保护(IP)电路,功率因数校正(PFC)电路和过电压保护(OP)电路。 控制器和一对继电器选择性地连接预定的组件,使得至少一个组件被选择性地从IP,PFC和OP电路之一中的操作改变为在另一个IP,PFC和OP电路中响应于检测值 的逆变器输入电压。 浪涌保护电路在启动模式下工作; PFC电路在正常驱动电机的同时运行; 并且过电压保护电路在由于电动机的再生而使逆变器输入电压增加的地方进行动作。

    Integrated traction inverter module and DC/DC converter
    192.
    发明申请
    Integrated traction inverter module and DC/DC converter 有权
    集成牵引逆变器模块和DC / DC转换器

    公开(公告)号:US20030214826A1

    公开(公告)日:2003-11-20

    申请号:US10360832

    申请日:2003-02-07

    Inventor: Lizhi Zhu Xingyi Xu

    Abstract: Integrated power conversion systems and methods for use in an electric vehicle having an electric motor, a primary high-voltage energy source, and an auxiliary energy source including a traction inverter module operable for converting a DC current generated by the high-voltage energy source into an AC current capable of powering the electric motor, and a DC/DC converter operable to step-down a voltage of the high-voltage energy source or step-up a voltage of the auxiliary energy source, wherein the traction inverter module and the DC/DC converter may share one or more common components, such as a common high-voltage DC bus capacitor, a common DC bus bar, and/or a common high-voltage transistor.

    Abstract translation: 用于具有电动机,初级高压能源和辅助能量源的电动车辆的集成电力转换系统和方法,包括牵引逆变器模块,其可操作以将由高压能量源产生的直流电转换成 能够为电动机供电的AC电流;以及DC / DC转换器,其可操作以降低高压能量源的电压或升压辅助能量源的电压,其中牵引逆变器模块和DC / DC转换器可以共享一个或多个公共组件,例如公共高压DC总线电容器,公共DC母线和/或公共高压晶体管。

    Motor control system for centrifugal machine
    193.
    发明授权
    Motor control system for centrifugal machine 失效
    离心机电机控制系统

    公开(公告)号:US5608301A

    公开(公告)日:1997-03-04

    申请号:US495962

    申请日:1995-06-28

    CPC classification number: H02M5/4585 H02P23/07 H02P2201/03 H02P2201/07

    Abstract: A power control apparatus for controlling power supplied to an electric motor rotating a rotor employed in a centrifuge is provided. The power control apparatus includes first and second inverters and a smoothing capacitor disposed between the first and second inverters. In a motor power mode, the first inverter charges the smoothing capacitor with power supplied by an AC power supply, while the second inverter charges, in a motor braking mode, the smoothing capacitor with power regenerated by the motor during a braking operation for returning the regenerated power back to the AC power supply through the first inverter. An reactor is arranged between the AC power supply and the first inverter for reducing harmonic components contained in the current supplied from or back to the AC power supply.

    Abstract translation: 提供一种功率控制装置,用于控制向离心机中使用的转子旋转的电动机的供给。 功率控制装置包括第一和第二反相器和设置在第一和第二反相器之间的平滑电容器。 在电动机功率模式中,第一变换器用交流电源供电的电力对平滑电容器充电,而第二变换器在电动机制动模式下对制动操作期间电动机再生电力的平滑电容器进行充电, 通过第一个逆变器将再生的电力返回给交流电源。 在交流电源和第一逆变器之间设置一个电抗器,用于减少由交流电源供给或返回的电流中包含的谐波分量。

    Bi-directional d.c./d.c. converter compatible with an inverter bridge
    195.
    发明授权
    Bi-directional d.c./d.c. converter compatible with an inverter bridge 失效
    双向d.c./d.c。 转换器与逆变桥兼容

    公开(公告)号:US4894765A

    公开(公告)日:1990-01-16

    申请号:US361661

    申请日:1989-05-31

    Inventor: Matti Kahkipuro

    Abstract: In a method of and apparatus for connecting a storage battery to an elevator inverter, the storage battery being connected to a d.c. circuit of the elevator inverter power stage, a voltage in the d.c. circuit is higher than the battery voltage. Power flows bidirectionally from the storage battery to the d.c. circuit and vice versa. When power is flowing from the storage battery to the d.c. circuit, the battery voltage is matched to the voltage in the d.c. circuit by the aid of a semiconductor switch, by means of which an energy store is charged, and a diode, by which the energy in the energy store is discharged into the d.c. circuit. When power is flowing from the d.c. circuit to the storage battery, the voltage of the d.c. circuit is matched to the battery voltage with the aid of a second semiconductor switch, by means of which the energy store is charged, and a second diode, by which the energy in the energy store is discharged into the storage battery.

    Abstract translation: 在将蓄电池连接到电梯逆变器的方法和装置中,蓄电池连接到直流电。 电梯逆变器功率级电路,直流电压。 电路高于电池电压。 电源从蓄电池双向流向直流电。 电路,反之亦然。 当电源从蓄电池流向直流电 电路电压与直流电压相匹配。 借助于半导体开关的电路,通过该半导体开关对能量存储器进行充电,以及二极管,通过该二极管将能量存储器中的能量排放到直流电路中。 电路。 当电源从直流电流 电路到蓄电池,电压的直流。 借助于第二半导体开关对电池电压进行匹配,第二半导体开关通过该能量存储器被充电,以及第二二极管,通过该第二二极管将能量存储器中的能量排放到蓄电池中。

    A.C. Motor control circuit
    196.
    发明授权
    A.C. Motor control circuit 失效
    电机控制电路

    公开(公告)号:US4292577A

    公开(公告)日:1981-09-29

    申请号:US19936

    申请日:1979-03-12

    CPC classification number: H02P27/045 H02P27/10 H02P2201/07 H02P27/047

    Abstract: A tachometer is coupled to the rotor of an A.C. motor and generates an output voltage proportional to the rotor's speed. A VELOCITY COMMAND voltage is generated having an amplitude which specifies a desired rotor speed. The tachometer voltage is subtracted from the VELOCITY COMMAND voltage to produce a VELOCITY ERROR voltage. The output of a D.C. power source is chopped at a fixed frequency and variable pulse width, the pulse width being proportional at any time to the amplitude of the VELOCITY ERROR voltage. The chopped D.C. voltage is filtered to provide a variable D.C. voltage having an amplitude which is proportional to the amplitude of the VELOCITY ERROR voltage. The variable D.C. voltage is applied to an inverter which changes it into an A.C. voltage. The A.C. voltage is applied to the stator windings of the motor to drive the rotor thereof. The frequency of the A.C. voltage is variable and is proportional, at rotor speeds above 150 RPM, to the amplitude of the velocity command voltage. At rotor speeds below 150 RPM, the frequency of the A.C. voltage is held fixed at approximately 28 Hz. The amplitude of the A.C. voltage is proportional to the VELOCITY ERROR voltage at all speeds. The frequency of the A.C. voltage is determined by an oscillator which drives a ring counter whose counting direction is controlled by a direction flip-flop. The state of the direction flip-flop is changed whenever the polarity of the VELOCITY ERROR voltage changes so that deceleration of the motor always occurs in a plugging mode.

    Abstract translation: 转速计耦合到交流电动机的转子,并产生与转子速度成比例的输出电压。 产生具有指定期望的转子速度的幅度的速度命令电压。 从VELOCITY COMMAND(VELOCITY COMMAND)电压中减去转速计电压,产生VELOCITY ERROR(VELOCITY ERROR)电压。 直流电源的输出以固定的频率和可变的脉冲宽度被切断,脉冲宽度随时间与VELOCITY ERROR电压的幅度成比例。 切断的直流电压被滤波以提供具有与VELOCITY ERROR电压的振幅成比例的振幅的可变直流电压。 可变直流电压被施加到将其变为交流电压的逆变器。 交流电压被施加到电动机的定子绕组以驱动其转子。 交流电压的频率是可变的,并且在高于150RPM的转子速度下与速度指令电压的幅度成比例。 转子速度低于150 RPM时,交流电压的频率固定在约28 Hz。 在所有速度下,交流电压的幅度均与VELOCITY ERROR电压成比例。 交流电压的频率由驱动其计数方向由方向触发器控制的环形计数器的振荡器确定。 每当VELOCITY ERROR电压的极性发生变化时,方向触发器的状态就会发生变化,从而电机的减速始终在插入模式下发生。

    Motor control system with volts/hertz regulation
    197.
    发明授权
    Motor control system with volts/hertz regulation 失效
    具有电压/ HERTZ调节的电机控制系统

    公开(公告)号:US3584279A

    公开(公告)日:1971-06-08

    申请号:US3584279D

    申请日:1969-05-28

    Applicant: BORG WARNER

    CPC classification number: H02P27/06 H02P27/047 H02P2201/03 H02P2201/07

    Abstract: An AC motor is energized by the output voltage of an inverter which in turn receives a DC input voltage from a DC-to-DC converter. A combined oscillator-regulator circuit includes a first potentiometer for adjusting the desired volts/hertz ratio of the inverter output voltage, and a second potentiometer for regulating motor speed. The combined oscillator-regulator receives an output signal from the inverter for comparison against the desired volts/hertz ratio signal, and provides two control signals. The first control signal regulates the operation of the DC-to-DC converter, and the second control signal regulates the frequency of the inverter output voltage.

    Method and integrated motor drive power electronics system with improved efficiency

    公开(公告)号:US09716447B2

    公开(公告)日:2017-07-25

    申请号:US14307728

    申请日:2014-06-18

    Abstract: Embodiments of an integrated motor drive power electronics system are generally described herein. In some embodiments, the integrated motor drive power electronics system includes an active line filter (ALF) configured to control and regulate current drawn from an input power source and to attenuate current ripple fed back to the input power source, an energy storage capacitance coupled to an output of the active line filter, and a bidirectional low voltage power supply (LVPS). In some embodiments, the bidirectional LVPS may provide regulated power to a load and may selectively recycle power back to the input power source and regulate voltage at the load to a predetermined output voltage. In some embodiments, the energy storage capacitance may serve as a local input power source for higher power motor drive electronics and the bidirectional LVPS.

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