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    • 91. 发明申请
    • SYSTEM AND METHOD FOR IMPROVING POWER CONVERSION EFFICIENCY
    • 改进功率转换效率的系统和方法
    • US20140153287A1
    • 2014-06-05
    • US14088718
    • 2013-11-25
    • General Electric Company
    • Saijun Mao
    • H02M7/797H02M5/458H02M3/335
    • H02M7/797H02M3/335H02M5/458
    • A power conversion system includes at least one switching unit. The switching unit includes a switching device including a channel and a body diode integrated with the channel. The switching device includes a first terminal, a second terminal, and a third terminal. The channel provides a positive direction current flow path to allow a positive direction current to flow through in response to a first turn-on switching control signal supplied to the first terminal. The body diode provides a first negative direction current flow path to allow a negative direction current to flow through in response to a first turn-off switching control signal. The channel provides a second negative direction current flow path to allow the negative direction current to flow through in response to a second turn-on switching control signal.
    • 电力转换系统包括至少一个开关单元。 开关单元包括开关装置,其包括与通道集成的通道和体二极管。 开关装置包括第一端子,第二端子和第三端子。 通道提供正方向电流流动路径,以响应于提供给第一端子的第一导通开关控制信号,允许正方向电流流过。 体二极管提供第一负方向电流流动路径以允许负方向电流响应于第一关断开关控制信号而流过。 通道提供第二负方向电流流动路径,以允许负方向电流响应于第二导通开关控制信号流过。
    • 92. 发明授权
    • Power supply circuit having AC power discharging functions
    • 具有交流电源放电功能的电源电路
    • US08259475B2
    • 2012-09-04
    • US13037670
    • 2011-03-01
    • Yun Seop ShinKi Eun Lee
    • Yun Seop ShinKi Eun Lee
    • H02M7/79H02M7/797H02M7/81
    • H02M7/46H02M2001/0048H02M2001/322Y02B70/1491
    • There is provided a circuit for discharging AC power including: a first rectifier rectifying AC power inputted from an AC power line; an electro-magnetic interference (EMI) removing unit installed between the AC power line and the first rectifier to suppress EMI of the AC power; a discharging signal generator generating a discharging signal from the AC power; and a discharging unit including a discharging resistor for discharging a voltage charged in the EMI removing unit according to the discharging signal, whereby standby power consumption may be reduced when the AC power is inputted and the voltage charged in a capacitor for removing EMI may be discharged to meet a predetermined safety standard when the AC power is blocked.
    • 提供一种用于放电交流电源的电路,包括:从交流电源线输入的交流电源的第一整流整流; 安装在交流电源线与第一整流器之间以抑制交流电源的EMI的电磁干扰(EMI)去除单元; 从AC电力产生放电信号的放电信号发生器; 以及放电单元,其包括用于根据放电信号对充电在EMI去除单元中的电压进行放电的放电电阻器,从而当输入AC电力时可以减少备用功率消耗,并且可以放电充电在用于去除EMI的电容器中的电压 在交流电源被阻塞时达到预定的安全标准。
    • 93. 发明申请
    • CURRENT CONTROLLED POWER CONVERTER
    • 电流控制电源转换器
    • US20120106217A1
    • 2012-05-03
    • US13345164
    • 2012-01-06
    • Kenichi SAKAKIBARA
    • Kenichi SAKAKIBARA
    • H02M7/797
    • H02P27/08G01R19/0092
    • A current controlled power converter includes a converting part configured to convert a three-phase ac voltage into a dc voltage or converts a dc voltage into a three-phase ac voltage, ac side current detection portions configured to detect an ac side current of the converting part, dc side current detection portions configured to detect a dc side current of the converting part, and a control section configured to control the converting part by pulse-width modulation using a spatial vector modulation method based on the ac side current detected by the ac side current detection portions and the dc side current detected by the dc side current detection portions. The control section corrects an amplitude error of the ac side current detected by the ac side current detection portions, and an offset error of the ac side current detected by the ac side current detection portions.
    • 电流控制功率转换器包括被配置为将三相交流电压转换为直流电压或将直流电压转换成三相交流电压的转换部分,被配置为检测转换器的交流侧电流的交流侧电流检测部分 部分直流侧电流检测部分,被配置为检测转换部分的直流侧电流;以及控制部分,被配置为通过使用基于由ac检测的交流侧电流的空间矢量调制方法的脉冲宽度调制来控制转换部分 并且由直流侧电流检测部检测出的直流侧电流。 控制部校正由交流侧电流检测部检测出的交流侧电流的振幅误差和由交流侧电流检测部检测出的交流侧电流的偏移误差。
    • 95. 发明授权
    • Charging circuit in uninterruptible power supply system
    • 不间断电源系统中的充电电路
    • US07230353B2
    • 2007-06-12
    • US10820496
    • 2004-04-08
    • Chao-Yang HsuHung-Chieh Lin
    • Chao-Yang HsuHung-Chieh Lin
    • H02J7/02H02J9/00H02M7/797
    • H02J7/022H02J9/062Y10T307/25Y10T307/625Y10T307/658
    • A charging circuit in a back-up power system is provided. The charging circuit includes an output terminal electrically connected to a main power for providing an AC output voltage, a transformer having a secondary electrically connected to the output terminal, an energy storage and supply device providing a DC voltage, an inverter having an output electrically connected to a primary of the transformer and an input electrically connected to the energy storage and supply device and including four gate control switch devices to form a bridge switching device, a bridge rectifier having an input electrically connected to the output of the inverter in parallel, and a charging switch device electrically connected to an output of the bridge rectifier in parallel so as to charge the electrical energy storage and supply device through one of a conduction state and a cut-off state of said charging switch device.
    • 提供备用电力系统中的充电电路。 充电电路包括电连接到用于提供AC输出电压的主电源的输出端子,具有与输出端子电连接的次级的变压器,提供DC电压的能量存储和供应装置,具有电连接的输出的反相器 变压器的主要部分和与能量存储和供给装置电连接的输入,并且包括四个门控制开关装置以形成桥式开关装置,桥式整流器具有与并联的逆变器的输出电连接的输入,以及 充电开关装置并联电连接到桥式整流器的输出,以便通过所述充电开关装置的导通状态和截止状态之一对电能存储和供给装置充电。
    • 96. 发明授权
    • Method for determining output currents of frequency converter
    • 确定变频器输出电流的方法
    • US07190599B2
    • 2007-03-13
    • US11010568
    • 2004-12-14
    • Panu VirolainenSamuli HeikkiláMarko Hinkkanen
    • Panu VirolainenSamuli HeikkiláMarko Hinkkanen
    • H02M7/797
    • H02P27/12H02M7/5387H02M7/5395H02M2001/0009
    • A method for determining output currents of a three-phase frequency converter comprising a voltage intermediate circuit and three power switch pairs constituting an output of the frequency converter, wherein the power switches constituting a pair are coupled in series between a positive and a negative busbar of the voltage intermediate circuit so that a midpoint of each switch pair constitutes a phase output of the frequency converter. The method comprises, during use of the frequency converter, steps of forming a voltage reference vector for the output power switches such that only two switch pairs are modulated during one modulation sequence, controlling said two switch pairs to implement a voltage reference vector during the modulation sequence by using one zero vector, measuring current of the voltage intermediate circuit of the frequency converter at a predetermined moment in the modulation sequence, and changing actively, during use of the frequency converter, the zero vectors to be used in the modulation sequences.
    • 一种用于确定包括电压中间电路和构成所述变频器的输出的三个功率开关对的三相变频器的输出电流的方法,其中构成一对的功率开关串联耦合在正和负母线之间 电压中间电路,使得每个开关对的中点构成变频器的相位输出。 该方法包括在使用变频器期间形成用于输出功率开关的电压参考矢量的步骤,使得在一个调制序列期间仅调制两个开关对,在调制期间控制所述两个开关对以实现电压参考矢量 通过使用一个零矢量,在调制序列中的预定时刻测量变频器的电压中间电路的电流,并且在使用变频器期间主动地改变要在调制序列中使用的零矢量。
    • 97. 发明申请
    • Configuration and method for protecting converter means
    • 用于保护转换器装置的配置和方法
    • US20050237678A1
    • 2005-10-27
    • US10514163
    • 2004-03-31
    • Reijo Virtanen
    • Reijo Virtanen
    • H02H20060101H02H7/00H02H7/12H02M1/00H02M1/32H02M5/458H02M7/5387H02M7/797H03H7/12
    • H02P9/007H02M1/32H02M7/5387H02P9/10
    • A protection configuration for converter means which comprise a plurality of controllable switches, the protection configuration comprising a protection circuit coupled to the alternating voltage side of the converter means, which protection circuit comprises at least one protective switch configured to short-circuit the alternating voltage side of the converter means, wherein the protection configuration, in predetermined failure situations, is configured to close the protective switch and thus to short-circuit the alternating voltage side of the converter means. After the failure situation has cleared up, the protection configuration is configured to short-circuit the alternating voltage side of the converter means by means of the controllable switches to enhance commutation of the protective switch.
    • 一种用于转换器装置的保护配置,其包括多个可控开关,该保护配置包括耦合到转换器装置的交流电压侧的保护电路,该保护电路包括至少一个保护开关,该保护开关被配置为使交流电压侧 ,其中在预定故障情况下的保护配置被配置为关闭保护开关,从而使转换器装置的交流电压侧短路。 在故障情况已经清除之后,保护配置被配置为通过可控开关来短路转换器装置的交流电压侧,以增强保护开关的换向。
    • 98. 发明授权
    • System and method for regenerative PWM AC power conversion
    • 用于再生式PWM交流电源转换的系统和方法
    • US06847531B2
    • 2005-01-25
    • US10387368
    • 2003-03-12
    • Paul S. Bixel
    • Paul S. Bixel
    • H02J7/00H02M5/458H02M7/49H02M7/797H02P23/06H02M7/00
    • H02M7/49H02M5/4505H02M5/4585H02M7/797H02P23/06
    • A power conversion system for driving a load is provided. The power conversion system comprises a power transformer having at least one primary winding circuit and at least one secondary winding circuit, the primary winding circuit being electrically connectable to an AC power source. The system further comprises at least one power cell, each of the at least one power cell having a power cell input connected to a respective one of the at least one secondary winding circuit. Each power cell also has a single phase output connectable to the load. A power switching arrangement including at least one power switch is connected to the power cell input and a DC bus, and a switch controller is connected to the power switching arrangement and the power cell input. The power cell also has a PWM output stage having a plurality of PWM switches connected to the DC bus and the single phase output. A local modulation controller is connected to the PWM output stage. The switch controller is adapted for monitoring and controlling a DC bus voltage according to a predetermined control methodology in both a motoring mode in which power from the AC power source is supplied to the load by the at least one power cell and a regeneration mode in which power from the load is supplied to the AC power source by the at least one power cell. The power conversion system also comprises a master controller in communication with the switch controller and the local modulation controller of each of the at least one power cell. The master controller is connectable to the load to monitor power flow thereto.
    • 提供用于驱动负载的电力转换系统。 电力转换系统包括具有至少一个初级绕组电路和至少一个次级绕组电路的电力变压器,所述初级绕组电路可电连接到AC电源。 所述系统还包括至少一个功率单元,所述至少一个功率单元中的每个功率单元具有连接到所述至少一个次级绕组电路中的相应一个的功率单元输入。 每个功率单元还具有可连接到负载的单相输出。 包括至少一个电源开关的电源开关装置连接到电力单元输入和DC总线,并且开关控制器连接到电力开关装置和电力单元输入。 功率单元还具有PWM输出级,其具有连接到DC总线和单相输出的多个PWM开关。 本地调制控制器连接到PWM输出级。 所述开关控制器适用于在所述至少一个功率单元向所述负载提供来自所述交流电源的功率的电动机模式和根据预定的控制方法的DC母线电压的监视和控制中, 来自负载的功率由至少一个功率单元提供给AC电源。 电力转换系统还包括与开关控制器和至少一个功率单元中的每一个的本地调制控制器通信的主控制器。 主控制器可连接到负载以监测其流量。
    • 100. 发明授权
    • Controller for controlling motor transferring power between a plurality
of power sources
    • 用于控制多个电源之间的电动机传递功率的控制器
    • US5659233A
    • 1997-08-19
    • US589466
    • 1996-01-22
    • Masayuki Nashiki
    • Masayuki Nashiki
    • H02M7/797H02P23/06H02P25/08H02P27/06H02P7/01
    • H02P25/08H02P23/06
    • A motor controller includes a power source VG for driving a motor 1, a power source VRG for regenerating energy generated in the motor 1, and a power converter for transferring energy from the power source VRG to the power source VG. Windings of the motor are connected, at their opposite ends, to the power source VG and collectors of transistors TR1 to TR3, respectively. Diodes D1 to D3 are connected to nodes of the windings and the transistors TR1-TR3 such that magnetic energy generated in the motor 1 is supplied to the power source VRG. This configuration enables the motor controller to have a reduced number of transistors for driving the windings, and the power sources to be effectively utilized. Further, the motor controller can use a discharge circuit of small power consumption type, which can reduce heat generated in the motor controller.
    • 电动机控制器包括用于驱动电动机1的电源VG,用于再生电动机1中产生的能量的电源VRG和用于将能量从电源VRG传递到电源VG的功率转换器。 电动机的绕组在其相对端分别连接到电源VG和晶体管TR1至TR3的集电极。 二极管D1至D3连接到绕组的节点和晶体管TR1-TR3,使得在电动机1中产生的磁能被提供给电源VRG。 该配置使电动机控制器具有用于驱动绕组的减少数量的晶体管,并且能够有效地利用电源。 此外,电动机控制器可以使用小功耗型的放电电路,其可以减少电动机控制器中产生的热量。