知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

52 条记录 (耗时 0.015 秒)

    HYBRID TRANSFORMATION SYSTEM BASED ON THREE-PHASE PWM RECTIFIER AND MULTI-UNIT UNCONTROLLED RECTIFIER AND CONTROL METHOD THEREOF
    1.
    发明申请
    HYBRID TRANSFORMATION SYSTEM BASED ON THREE-PHASE PWM RECTIFIER AND MULTI-UNIT UNCONTROLLED RECTIFIER AND CONTROL METHOD THEREOF 有权

    公开(公告)号：US20180145585A1

    公开(公告)日：2018-05-24

    申请号：US15570378

    申请日：2015-07-21

    申请人： SOUTH CHINA UNIVERSITY OF TECHNOLOGY

    发明人： Guiping DU ,  Zhifei LIU ,  Tiansheng ZHU

    IPC分类号： H02M1/42 ,  H02M7/219

    CPC分类号： H02M1/4216 ,  H02M7/219 ,  H02M2001/4283 ,  Y02B70/126 ,  Y02P80/112

    摘要： The present invention discloses a hybrid transformation system based on three-phase voltage type PWM rectifier and multi-unit uncontrolled rectifier. The hybrid transformation system mainly consists of a three-phase reactor (L), a three-phase voltage type PWM rectifier module, an N-unit three-phase uncontrolled rectifier bridge module group, capacitors (C0-CN) and a DSP control circuit. An input end of the three-phase voltage type PWM rectifier module is in parallel connection with an input end of each three-phase uncontrolled rectifier bridge module. The three-phase voltage type PWM rectifier module may work in to situations, with load or without load, and the three-phase voltage type PWM rectifier module just does reactive power compensation when working without load. All modules of the three-phase uncontrolled rectifier bridge module group may work in to situations, with loads independently or all the outputs are in parallel connection and with a same load. The hybrid rectifier system has advantages such as unity input power factor, grid side current low harmonic, high power output, low cost, easy control, and etc.

    Unified constant-frequency integration control of three-phase power factor corrected rectifiers, active power filters, and grid-connected inverters
    3.
    发明申请
    Unified constant-frequency integration control of three-phase power factor corrected rectifiers, active power filters, and grid-connected inverters 有权
    三相功率因数校正整流器，有源电力滤波器和并网逆变器的统一恒频积分控制

    公开(公告)号：US20020149953A1

    公开(公告)日：2002-10-17

    申请号：US09928005

    申请日：2001-08-10

    发明人： Keyue M. Smedley ,  Chongming Qiao

    IPC分类号： H02M005/42

    CPC分类号： H02M1/4233 ,  H02J3/01 ,  H02J3/1842 ,  H02J3/38 ,  H02M2001/4283 ,  Y02B70/126 ,  Y02E40/22

    摘要： An unified constant-frequency integration (UCI) control method based on one-cycle control employs an integrator with reset as its core component along with a few logic and linear components to control the pulse width of a three-phase recitifier, active power filter, or grid-connected inverter so that the all three phase current draw from or the current output to the utility line is sinusoidal. No multipliers and reference calculation circuitry are needed for controlling active power filters. The UCI control employs constant switching frequency and operates in continuous conduction mode (CCM). If in some cases a DSP is desired for some other purposes, the Unified Constant-frequency Control function can be realized by a low cost DSP with a high reliability, because no high speed calcutation, high speed A/D converter, and mutipliers are required.

    摘要翻译： 基于单周期控制的统一恒定频率积分（UCI）控制方法采用以复位为核心的积分器以及一些逻辑和线性分量来控制三相回收器，有功功率滤波器， 或并网逆变器，使得从实用电力线路抽取或输出的所有三相电流为正弦波。 无需乘法器和参考计算电路来控制有源电力滤波器。 UCI控制采用恒定的开关频率并工作在连续导通模式（CCM）。 如果在某些情况下需要DSP用于某些其他目的，则统一恒定频率控制功能可以由具有高可靠性的低成本DSP实现，因为不需要高速计算，高速A / D转换器和多路复用器 。

    Low harmonic current and fault tolerant power supply
    4.
    发明授权
    Low harmonic current and fault tolerant power supply 失效
    低谐波电流和容错电源

    公开(公告)号：US5103388A

    公开(公告)日：1992-04-07

    申请号：US760796

    申请日：1991-09-16

    申请人： James B. Williams ,  Bahman Sharifipour

    发明人： James B. Williams ,  Bahman Sharifipour

    IPC分类号： H02M1/00 ,  H02M1/10 ,  H02M1/42 ,  H02M7/08

    CPC分类号： H02M1/4225 ,  H02M1/10 ,  H02M7/08 ,  H02M2001/325 ,  H02M2001/4283 ,  Y02B70/126

    摘要： A fault tolerant power supply comprises a first rectifier and a second rectifier with a boost circuit for correcting line current harmonics. The second rectifier, the boost circuit and output diodes are connected in parallel with the first rectifier. A capacitor circuit is charged through the second rectifier and boost converter when a 240 volt line input is present, but the circuit is charged through the first rectifier when a 120 volt line input is present. With failure of the boost converter circuit or with removal of the boost converter circuit from the system, the capacitor circuit is charged through the first rectifier.

    摘要翻译： 容错电源包括第一整流器和具有用于校正线路电流谐波的升压电路的第二整流器。 第二整流器，升压电路和输出二极管与第一整流器并联连接。 当存在240伏线路输入时，电容器电路通过第二整流器和升压转换器充电，但是当存在120伏线路输入时，电路通过第一整流器充电。 由于升压转换器电路故障或者从系统中去除升压转换器电路，电容器电路通过第一整流器充电。

    CONTROL DEVICE
    8.
    发明申请
    CONTROL DEVICE 审中-公开
    控制装置

    公开(公告)号：US20160070241A1

    公开(公告)日：2016-03-10

    申请号：US14784377

    申请日：2014-03-13

    申请人： DAIKIN INDUSTRIES, LTD.

    发明人： Reiji KAWASHIMA

    IPC分类号： G05B11/42

    CPC分类号： G05B11/42 ,  H02J3/01 ,  H02J3/18 ,  H02M7/48 ,  H02M2001/4283 ,  H02P27/04 ,  Y02B70/126 ,  Y02E40/30 ,  Y02E40/40

    摘要： A control device outputs, to a to-be-controlled system which operates based on a control input and from which an observable amount varying cyclically is obtained, the control input based on the observable amount. The control device includes a deviation processing unit performing at least proportional integral control on a deviation between the observable amount and a command value being a target value of the observavle amount and varying cyclically, and a totaling unit tataling an output of the deviation processing unit for each cycle of the command value to generate the control input.

    摘要翻译： 控制装置输出到基于控制输入进行操作并且从其获得可变量周期性变化的受控系统，基于可观察量的控制输入。 所述控制装置包括：偏差处理单元，对所述可观测量与作为所述观测量的目标值的指令值之间的偏差进行至少比例积分控制，并且循环变化;以及总计单位，对所述偏差处理单元的输出 每个周期的命令值生成控制输入。

    SYSTEMS AND METHODS FOR UTILIZING AN ACTIVE COMPENSATOR TO AUGMENT A DIODE RECTIFIER
    9.
    发明申请
    SYSTEMS AND METHODS FOR UTILIZING AN ACTIVE COMPENSATOR TO AUGMENT A DIODE RECTIFIER 审中-公开
    将活性补偿器用于二极管整流器的系统和方法

    公开(公告)号：US20140152012A1

    公开(公告)日：2014-06-05

    申请号：US14025534

    申请日：2013-09-12

    申请人： ABB Research Ltd.

    发明人： Hongrae Kim ,  Jouko Niiranen ,  Jyoti Sastry

    IPC分类号： H02P21/00

    CPC分类号： H02P9/007 ,  H02J3/18 ,  H02J3/1842 ,  H02M1/12 ,  H02M2001/4283 ,  H02P23/26 ,  Y02B70/126 ,  Y02E10/763 ,  Y02E40/22 ,  Y02E40/30

    摘要： The subject matter described herein includes an active compensatory augmented diode bridge rectifier system. According to one aspect, the system comprises a generator unit configured to generate a current flow comprised entirely of active current and a diode rectifier configured to receive the active current from the generator unit, to direct the active current to a connected power grid, and to receive a reactive current. The system further includes an active compensator configured to optimize the generator unit to produce the active current and to generate the reactive power used to facilitate the operation of the diode rectifier.

    摘要翻译： 本文所述的主题包括有源补偿增强二极管桥式整流器系统。 根据一个方面，该系统包括发电机单元，该发电机单元被配置为产生完全由有功电流组成的电流，以及被配置为从发电机单元接收有功电流的二极管整流器，以将有源电流​​引导到连接的电网，以及 接收无功电流。 该系统还包括有源补偿器，其被配置为优化发电机单元以产生有功电流并产生用于促进二极管整流器的操作的无功功率。

    Multiple phase power supply having current shared power factor correction
    10.
    发明授权
    Multiple phase power supply having current shared power factor correction 有权
    具有电流共用功率因数校正的多相电源

    公开(公告)号：US08223518B2

    公开(公告)日：2012-07-17

    申请号：US12286701

    申请日：2008-10-01

    申请人： Ky Thoai Luu

    发明人： Ky Thoai Luu

    IPC分类号： H02M7/08 ,  G05F1/00

    CPC分类号： H02M1/4216 ,  H02J1/102 ,  H02M7/23 ,  H02M2001/4283 ,  Y02B70/126 ,  Y02P80/112

    摘要： A multi-phase (N) power supply is presented having current shared power factor correction. This includes N input rectifier filters each receiving a respective different one of an N phase AC input signal and providing therefrom one of N rectified signals. N single phase power factor correction pre-regulators each receive a respective different one of the rectified signals and provide therefrom a regulated signal. A current sharing N way to single way multiplexing switch network receives the N regulated signals and provides therefrom a single output signal.

    摘要翻译： 提出了具有当前共享功率因数校正的多相（N）电源。 这包括N个输入整流滤波器，每个滤波器接收相应的不同的一个N相交流输入信号，并从中提供N个整流信号之一。 N个单相功率因数校正预调节器各自接收相应的不同的一个整流信号并从其提供调节信号。 单向多路复用交换网络的电流共享N路接收N个调节信号，从而提供单个输出信号。