СИСТЕМЫ И СПОСОБ ПОДОГРЕВА КАРТЕРА КОМПРЕССОРА

    公开(公告)号:RU2509231C2

    公开(公告)日:2014-03-10

    申请号:RU2012114904

    申请日:2010-09-24

    Abstract: Изобретениеотноситсяк энергетике. Системаподогревакартеракомпрессорасодержиткомпрессорс кожухом, вкоторомразмещаетсямеханизмсжатия, приводимыйэлектродвигателем, когдакомпрессорвключен, инеприводимыйэлектродвигателем, когдакомпрессорвыключен. Систематакжесодержитпреобразовательчастотно-регулируемогопривода, которыйобеспечиваетработуэлектродвигателя, когдакомпрессорвключен, путемрегулированиячастотынапряжения, подаваемогонаэлектродвигатель, иподаетэлектрическийтокв статорэлектродвигателядлянагревакомпрессора, когдакомпрессорвыключен. Такжепредставленспособподогревакартеракомпрессора. Изобретениепозволяетобеспечитьболееэффективныйрегулируемыйнагревкартеракомпрессора. 2 н. и 18 з.п. ф-лы, 8 ил.

    System and method for rejecting DC current in power factor correction systems

    公开(公告)号:AU2010282655A1

    公开(公告)日:2012-02-23

    申请号:AU2010282655

    申请日:2010-08-10

    Inventor: GREEN CHARLES E

    Abstract: A power factor correction (PFC) system includes a direct current (DC) module, an error control module, an offset module, and a duty cycle control module. The DC module determines an average current value based on a plurality of current values over at least one cycle of an input alternating current (AC) line signal of the PFC system. The error control module generates an error signal based on the average current value. The offset module offsets a desired instantaneous current based on the error signal. The duty cycle control module controls at least one duty cycle of switches of the PFC system based on the offset desired instantaneous current.

    POWER FACTOR CORRECTION WITH VARIABLE BUS VOLTAGE
    25.
    发明公开
    POWER FACTOR CORRECTION WITH VARIABLE BUS VOLTAGE 审中-公开
    LEISTUNGSFAKTORKORREKTUR MIT VARIABLER BUSSPANNUNG

    公开(公告)号:EP2465188A4

    公开(公告)日:2017-08-09

    申请号:EP10808618

    申请日:2010-08-10

    Abstract: A controller includes a voltage determination module, a bus voltage command module, and a power factor correction (PFC) control module. The voltage determination module determines a desired direct current (DC) bus voltage for a DC bus electrically connected between a PFC module and an inverter power module that drives a compressor motor. The voltage determination module determines the desired DC bus voltage based on at least one of torque of the compressor motor, speed of the compressor motor, output power of the inverter power module, and drive input power. The bus voltage command module determines a commanded bus voltage based on the desired DC bus voltage. The PFC control module controls the PFC module to create a voltage on the DC bus that is based on the commanded bus voltage.

    Abstract translation: 控制器包括电压确定模块,总线电压命令模块和功率因数校正(PFC)控制模块。 电压确定模块确定用于电连接在PFC模块与驱动压缩机电机的逆变器功率模块之间的DC总线的期望直流(DC)总线电压。 电压确定模块基于压缩机电机的扭矩,压缩机电机的速度,逆变器功率模块的输出功率和驱动输入功率中的至少一个来确定期望的DC总线电压。 总线电压命令模块基于期望的DC总线电压来确定命令的总线电压。 PFC控制模块控制PFC模块在直流母线上创建基于指令总线电压的电压。

    SYSTEM AND METHOD FOR POWER FACTOR CORRECTION
    26.
    发明公开
    SYSTEM AND METHOD FOR POWER FACTOR CORRECTION 有权
    系统VERFAHREN ZUR LEISTUNGSFAKTORKORREKTUR

    公开(公告)号:EP2465187A4

    公开(公告)日:2013-02-27

    申请号:EP10808617

    申请日:2010-08-10

    CPC classification number: H02M1/4208 H02M1/4225 H02M3/1584 Y02B70/126

    Abstract: A first rectifier diode is electrically connected between a first input terminal where an alternating current (AC) power is received and a first output terminal where a direct current (DC) power is output. A second rectifier diode is electrically connected between the first input terminal and a second output terminal. The first and second rectifier diodes rectify first and second portions of the AC power into the DC power, respectively. When switching of a plurality of power factor correction (PFC) switches is enabled, the plurality of PFC switches increases a voltage of the DC power to greater than a peak voltage of the AC power. An inductor is electrically connected between a second input terminal and two of the plurality of PFC switches. When the switching is disabled, first and second bypass diodes provide a current path past the plurality of PFC switches and the inductor.

    Abstract translation: 第一整流二极管电连接在接收交流(AC)功率的第一输入端和输出直流(DC)功率的第一输出端之间。 第二整流二极管电连接在第一输入端和第二输出端之间。 第一和第二整流二极管将交流电源的第一和第二部分分别整流成直流电力。 当启用多个功率因数校正(PFC)开关的切换时,多个PFC开关将DC功率的电压增加到大于AC电力的峰值电压。 电感器电连接在第二输入端子和多个PFC开关中的两个之间。 当禁止开关时,第一和第二旁路二极管提供经过多个PFC开关和电感器的电流路径。

    SYSTEM AND METHOD FOR POWER FACTOR CORRECTION FREQUENCY TRACKING AND REFERENCE GENERATION

    公开(公告)号:EP2465189A4

    公开(公告)日:2018-01-10

    申请号:EP10808622

    申请日:2010-08-10

    Inventor: GREEN CHARLES E

    CPC classification number: H02M1/4208 Y02B70/126

    Abstract: A power factor correction (PFC) system includes a period determination module, a frequency generation module, an angle generation module, a signal generation module, and an angle correction module. The period determination module determines a period of an input alternating current (AC) line signal based on a time between rising edges of the input AC line signal. The frequency generation module generates a frequency based on the period. The angle generation module generates an angle based on the frequency. The signal generation module generates a sinusoidal reference signal based on the frequency and an adjusted angle. The angle correction module generates the adjusted angle based on the angle and based on a comparison of a falling edge of the sinusoidal reference signal, the period, and a rising edge of the input AC line signal.

    SYSTEM AND METHOD FOR REDUCING LINE CURRENT DISTORTION

    公开(公告)号:EP2465190A4

    公开(公告)日:2018-03-21

    申请号:EP10808630

    申请日:2010-08-10

    Inventor: GREEN CHARLES E

    CPC classification number: H02M1/4208 H02M1/4225 H02M3/1584 Y02B70/126

    Abstract: A power factor correction (PFC) system includes an adjustment module, a compensation module, and a duty cycle control module. The adjustment module generates N time advances based on N predetermined time advances and (N−1) time advance adjustments, wherein N is an integer greater than zero. The compensation module generates N compensated versions of an input alternating current (AC) line signal by predicting ahead of the input AC line signal using a gradient of a sinusoidal reference signal and the N time advances, respectively, wherein the sinusoidal reference signal is synchronized with the input AC line signal in phase and frequency. The duty cycle control module generates PFC duty cycles based on the N compensated versions of the input AC line signal.

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