METHODS AND SYSTEMS FOR REDUCING CONDUCTED ELECTROMAGNETIC INTERFERENCE
    21.
    发明申请
    METHODS AND SYSTEMS FOR REDUCING CONDUCTED ELECTROMAGNETIC INTERFERENCE 有权
    减少导电电磁干扰的方法和系统

    公开(公告)号:US20140070744A1

    公开(公告)日:2014-03-13

    申请号:US13609669

    申请日:2012-09-11

    Abstract: A drive circuit is provided for reducing conducted electromagnetic interference provided by a power line to a motor controller. The power line includes a first alternating current (AC) line output and a second AC line output. The drive circuit includes an EMI filter having a first input terminal, a second input terminal, a first output terminal, and a second output terminal. The first input terminal is configured to be coupled to the first AC line output and the second input terminal is configured to be coupled to the second AC line output. The drive circuit further includes at least two series-coupled filter capacitors positioned after the EMI filter and a power factor correction (PFC) choke. The PFC choke is coupled at a first end to the second output terminal and at a second end between the series-coupled filter capacitors.

    Abstract translation: 提供驱动电路,用于将由电力线提供的传导电磁干扰降低到电动机控制器。 电力线包括第一交流(AC)线路输出和第二AC线路输出。 驱动电路包括具有第一输入端子,第二输入端子,第一输出端子和第二输出端子的EMI滤波器。 第一输入端子被配置为耦合到第一AC线路输出,并且第二输入端子被配置为耦合到第二AC线路输出。 驱动电路还包括位于EMI滤波器之后的至少两个串联耦合滤波电容器和功率因数校正(PFC)扼流圈。 PFC扼流圈在第一端耦合到第二输出端子,并且在串联耦合的滤波电容器之间的第二端耦合。

    Motor Power Factor Correction Apparatus and Method
    23.
    发明申请
    Motor Power Factor Correction Apparatus and Method 有权
    电机功率因数校正装置及方法

    公开(公告)号:US20110187300A1

    公开(公告)日:2011-08-04

    申请号:US12672688

    申请日:2008-08-13

    Applicant: Krishnan Ramu

    Inventor: Krishnan Ramu

    CPC classification number: H02P25/092 H02P2201/15 Y02P80/112

    Abstract: A power factor correction system includes a rectifier that rectifies the voltage of an alternating current (ac) power source to produce a voltage waveform that transitions, in a half sinusoid, from a minimum amplitude to a maximum amplitude and back to the minimum amplitude twice in the period of the ac power source. A phase winding of a motor conveys current induced by the voltage waveform, and a regulator regulates the flow of the current conveyed by the phase winding for storage as energy in a storage component.

    Abstract translation: 功率因数校正系统包括整流器,其对交流(AC)电源的电压进行整流,以产生电压波形,该电压波形在半正弦曲线中从最小幅度转换到最大幅度,并返回到最小振幅两次 交流电源的周期。 电动机的相绕组传递由电压波形引起的电流,并且调节器调节由相绕组输送的电流的流量作为能量存储在存储部件中。

    CONTROLLER AND METHOD FOR MINIMIZING PHASE ADVANCE CURRENT
    24.
    发明申请
    CONTROLLER AND METHOD FOR MINIMIZING PHASE ADVANCE CURRENT 有权
    用于最小化相位前进电流的控制器和方法

    公开(公告)号:US20110031919A1

    公开(公告)日:2011-02-10

    申请号:US12852619

    申请日:2010-08-09

    Inventor: Charles E. Green

    CPC classification number: H02P21/06 F25B49/025 H02P21/0089 H02P2201/15

    Abstract: A current control module generates a voltage request based on a d-axis current (Idr) demand. A switching control module controls a motor based on the voltage request and generates an out-of-volts (OOV) signal based on a comparison of the voltage request and an available voltage. An Idr injection module generates the Idr demand based on a direct current (DC) bus voltage, a rotational speed, and a demanded torque and selectively applies a first adjustment to the Idr demand. The Idr injection module identifies whether an improvement resulted from the first adjustment, wherein the improvement is identified based on at least one of (i) a measured current of the motor and (ii) the OOV signal. The Idr injection module selectively applies a second adjustment to the Idr demand based on whether the improvement is identified.

    Abstract translation: 电流控制模块基于d轴电流(Idr)需求产生电压请求。 开关控制模块基于电压请求来控制电动机,并且基于电压请求和可用电压的比较产生失伏(OOV)信号。 Idr注入模块基于直流(DC)总线电压,转速和所需转矩产生Idr需求,并且选择性地对Idr需求进行第一调整。 Idr注入模块识别是否由第一调整产生改进,其中基于(i)电动机的测量电流和(ii)OOV信号中的至少一个来识别改进。 Idr注入模块基于是否识别出改进来选择性地对Idr需求进行第二调整。

    Procedures and Control System to Control a Brushless Electric Motor
    25.
    发明申请
    Procedures and Control System to Control a Brushless Electric Motor 有权
    控制无刷电动机的程序和控制系统

    公开(公告)号:US20100315027A1

    公开(公告)日:2010-12-16

    申请号:US12819747

    申请日:2010-06-21

    Abstract: The present invention relates to a method and a control system for driving a three-strand brushless, electronically commutated electric motor (2), wherein a line AC voltage (UN) is rectified and fed via a slim DC link (8) with minimum DC link reactance as a DC link voltage (UZ) to an inverter (10) that can be driven to supply and commutate the electric motor (2). A pulsating DC voltage (UG) initially generated by rectifying the line AC voltage (UN) is dynamically increased with respect to its instantaneous values by a step-up chopper (18) in such a manner that the resulting DC link voltage (UZ) with a reduced ripple always lies above a defined limit voltage (U18/U1) over time. The control system consists of a network rectifier (6), a downstream slim DC link (8) with minimum DC link reactance and a controllable inverter (10) that can be supplied via the DC link and driven to commutate the electric motor (2). A step-up chopper (18) is integrated therein with a controller (20) designed in such a manner that, the pulsating DC voltage (UG) rectified by the network rectifier (6) is dynamically increased with respect to its instantaneous values in such a manner that the resulting DC link voltage (UZ) with a reduced ripple always lies above a defined limit voltage (U20/U1) over time. Stray inductances (Ls1-Ls3) of the motor winding heads present in the electric motor (2) are used as inductor (L) for the step-up chopper (18).

    Abstract translation: 本发明涉及一种用于驱动三股无刷电子换向电动机(2)的方法和控制系统,其中线路交流电压(UN)被整流并通过具有最小DC的超薄DC链路(8)馈送 连接电抗作为直流链路电压(UZ)到可以被驱动以供应和换向电动机(2)的逆变器(10)。 通过整流线路交流电压(UN)最初产生的脉动直流电压(UG)通过升压斩波器(18)相对于其瞬时值而动态增加,使得所得的DC链路电压(UZ)与 随着时间的推移,降低的纹波始终高于定义的限制电压(U18 / U1)。 控制系统由网络整流器(6),具有最小直流链路电抗的下游超薄直流链路(8)和可控逆变器(10)组成,可以通过直流链路提供并驱动以使电动机(2)换向, 。 集成有升压斩波器(18)的控制器(20)设计成使得由网络整流器(6)整流的脉动直流电压(UG)相对于其瞬时值动态地增加 所产生的具有减小的纹波的所得直流链路电压(UZ)始终高于定义的限制电压(U20 / U1)。 存在于电动机(2)中的电动机绕组头的杂散电感(Ls1-Ls3)用作升压斩波器(18)的电感器(L)。

    FAN AND MOTOR CONTROL DEVICE
    27.
    发明申请
    FAN AND MOTOR CONTROL DEVICE 有权
    风扇和电机控制装置

    公开(公告)号:US20100134054A1

    公开(公告)日:2010-06-03

    申请号:US12578788

    申请日:2009-10-14

    Abstract: A fan includes a motor control device which is electrically connected with a motor and an alternating current power source. The motor control device includes a converting circuit, a power factor correction circuit and a motor controlling circuit. The voltage of the alternating current power source is converted to be direct current voltage by the converting circuit and the power factor correction circuit, and then the direct current voltage is outputted to the motor control circuit. The motor controlling circuit generates a driving signal in accordance with the direct current voltage for driving the motor to operate.

    Abstract translation: 风扇包括与电动机和交流电源电连接的电动机控制装置。 电动机控制装置包括转换电路,功率因数校正电路和电动机控制电路。 通过转换电路和功率因数校正电路将交流电源的电压转换为直流电压,然后将直流电压输出到电动机控制电路。 电动机控制电路根据用于驱动电动机的直流电压产生驱动信号进行动作。

    Motor drive using flux adjustment to control power factor
    28.
    发明授权
    Motor drive using flux adjustment to control power factor 有权
    电机驱动使用磁通调节来控制功率因数

    公开(公告)号:US07683568B2

    公开(公告)日:2010-03-23

    申请号:US11863514

    申请日:2007-09-28

    Abstract: The switching rectifier and switching inverter on a motor drive unit are modulated to indirectly change the magnitude of current and voltage stored in DC link by controlling the magnetic field of the motor to correct for both power factor lead and power factor lag over a wide range of motor speeds and conditions while maintaining a predetermined motor operating point.

    Abstract translation: 电动机驱动单元上的开关整流器和开关变换器被调制以通过控制电动机的磁场来间接地改变存储在直流母线中的电流和电压的大小,从而在宽范围内校正功率因数导通和功率因数滞后 同时保持预定的电动机工作点。

    Motor controller of air conditioner
    29.
    发明申请
    Motor controller of air conditioner 有权
    空调电机控制器

    公开(公告)号:US20090140680A1

    公开(公告)日:2009-06-04

    申请号:US12292478

    申请日:2008-11-19

    Applicant: Gwi Guen Park

    Inventor: Gwi Guen Park

    CPC classification number: H02P23/26 H02M1/126 H02P2201/15

    Abstract: The present invention relates to a motor controller, including a converter for converting commercial AC power into DC power, an inverter including a plurality of switching elements, the inverter receiving the DC power, converting the DC power into AC power of a specific frequency through switching operations, and supplying the AC power to a three-phase motor, and a noise filter unit connected between the commercial AC power and the converter in order to remove a high frequency current and including normal mode inductors and common mode inductor. Accordingly, the motor control can control the power factor, limit a high frequency current, and eliminate noise components, that is, ripple components of an input current.

    Abstract translation: 电动机控制器技术领域本发明涉及一种电动机控制器,包括用于将商用交流电转换成直流电力的转换器,包括多个开关元件的逆变器,逆变器接收直流电力,通过开关将直流电转换成特定频率的交流电力 操作,并将AC电力提供给三相电动机,以及连接在商用AC电力和转换器之间的噪声滤波器单元,以便去除高频电流并且包括正常模式电感器和共模电感器。 因此,电机控制可以控制功率因数,限制高频电流,并消除噪声分量,即输入电流的纹波分量。

    VSD CONTROL
    30.
    发明申请
    VSD CONTROL 有权
    VSD控制

    公开(公告)号:US20040201354A1

    公开(公告)日:2004-10-14

    申请号:US10413011

    申请日:2003-04-14

    Inventor: Steven J. Holden

    CPC classification number: H02P5/74 F25B2600/021 H02P23/26 H02P2201/15

    Abstract: A variable speed drive control system operates a variable speed drive to power a first load from a power source simultaneously powering a second load. An AC reactive power is monitored which may comprise or consist of an AC reactive power of the second load. Responsive to the monitored AC reactive power, the variable speed drive is controlled to counter the AC reactive power of the second load.

    Abstract translation: 变速驱动控制系统操作变速驱动器以对来自同时为第二负载供电的电源的第一负载供电。 监控AC无功功率,其可以包括或由第二负载的AC无功功率组成。 响应于监控的交流无功功率,控制变速驱动器以抵抗第二负载的交流无功功率。

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