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    • 2. 发明授权
    • Inverter
    • 逆变器
    • US07907427B2
    • 2011-03-15
    • US12374931
    • 2007-06-12
    • Kenichi SakakibaraHitoshi Haga
    • Kenichi SakakibaraHitoshi Haga
    • H02M5/45H02M5/458H02M1/12H02M1/14
    • H02M1/15H02M5/458H02P21/0003H02P21/22H02P27/08Y02B70/145
    • The inverter comprises a diode bridge (21) that rectifies an inputted three-phase AC voltage into a DC voltage, an inverter section (22) that converts the DC voltage converted by the diode bridge (21) into an AC voltage and outputs the resulting voltage, an LC filter that has an inductor Ldc connected between one output terminal of the diode bridge (21) and one input terminal of the inverter section and a capacitor Cdc connected across the input terminals of the inverter section, a voltage detecting section (24) that detects cross terminal voltage of the inductor Ldc, and a control section (100) that controls the inverter section (22). The control section (100) controls the inverter section (22) so that the transfer characteristic of the I/O voltage of the inverter section (22) becomes a characteristic of the first-order lag system on the basis of the cross terminal voltage of the inductor Ldc detected by the voltage detecting section (24).
    • 逆变器包括将输入的三相AC电压整流为直流电压的二极管电桥(21),将由二极管电桥(21)转换的直流电压转换为交流电压的逆变器部(22),并输出 电压,LC滤波器,其具有连接在二极管电桥(21)的一个输出端子和反相器部分的一个输入端子之间的电感器Ldc和跨过反相器部件的输入端子连接的电容器Cdc;电压检测部件(24) ),以及控制所述逆变器部(22)的控制部(100)。 控制部(100)控制逆变器部(22),使得逆变器部(22)的I / O电压的传递特性基于第一级滞后系统的交叉端电压成为一阶滞后系统的特性 由电压检测部(24)检测的电感器Ldc。
    • 6. 发明申请
    • INVERTER
    • 逆变器
    • US20090237961A1
    • 2009-09-24
    • US12374931
    • 2007-06-12
    • Kenichi SakakibaraHitoshi Haga
    • Kenichi SakakibaraHitoshi Haga
    • H02M5/44
    • H02M1/15H02M5/458H02P21/0003H02P21/22H02P27/08Y02B70/145
    • The inverter comprises a diode bridge (21) that rectifies an inputted three-phase AC voltage into a DC voltage, an inverter section (22) that converts the DC voltage converted by the diode bridge (21) into an AC voltage and outputs the resulting voltage, an LC filter that has an inductor Ldc connected between one output terminal of the diode bridge (21) and one input terminal of the inverter section and a capacitor Cdc connected across the input terminals of the inverter section, a voltage detecting section (24) that detects cross terminal voltage of the inductor Ldc, and a control section (100) that controls the inverter section (22). The control section (100) controls the inverter section (22) so that the transfer characteristic of the I/O voltage of the inverter section (22) becomes a characteristic of the first-order lag system on the basis of the cross terminal voltage of the inductor Ldc detected by the voltage detecting section (24).
    • 逆变器包括将输入的三相AC电压整流为直流电压的二极管电桥(21),将由二极管电桥(21)转换的直流电压转换为交流电压的逆变器部(22),并输出 电压,LC滤波器,其具有连接在二极管电桥(21)的一个输出端子和反相器部分的一个输入端子之间的电感器Ldc和跨过反相器部件的输入端子连接的电容器Cdc;电压检测部件(24) ),以及控制所述逆变器部(22)的控制部(100)。 控制部(100)控制逆变器部(22),使得逆变器部(22)的I / O电压的传递特性基于第一级滞后系统的交叉端电压成为一阶滞后系统的特性 由电压检测部(24)检测的电感器Ldc。
    • 7. 发明授权
    • Power converter
    • 电源转换器
    • US09246398B2
    • 2016-01-26
    • US14347221
    • 2012-06-01
    • Kenichi SakakibaraKeisuke Ohta
    • Kenichi SakakibaraKeisuke Ohta
    • H02M5/458H02M1/12H02M3/335H02M7/5387H02M7/48H02M1/15
    • H02M5/458H02M1/15H02M7/4826H02M7/53875
    • A power converter includes a rectifier section, an inverter section, a capacitance element connected between inverter section input ends, an inductance element forming part of an LC filter with the capacitance element, a voltage detector detecting an inductance element voltage, and a controller controlling the inverter section based on the detected voltage. The LC filter has a resonance frequency set such that ripple current components contained in DC current outputted from the rectifier section passes through, and current components of a frequency equal to a carrier frequency of the inverter section are dampened. The controller controls the inverter section so that a transfer characteristic of input voltage of the inverter section versus the DC voltage from the rectifier section becomes a damping characteristic given by a phase lead element and a second-order lag element connected in series, and a damping coefficient of the transfer characteristic is set larger than 1.
    • 电力转换器包括整流器部分,逆变器部分,连接在逆变器部分输入端之间的电容元件,形成具有电容元件的LC滤波器的一部分的电感元件,检测电感元件电压的电压检测器,以及控制器 基于检测电压的变频器部分。 LC滤波器具有设定为使得从整流器部分输出的DC电流中包含的纹波电流成分通过的谐振频率,并且衰减与逆变器部的载波频率相等的频率的电流分量。 控制器控制逆变器部分,使得逆变器部分的输入电压与来自整流器部分的直流电压的传递特性成为由串联连接的相位引线元件和二次滞后元件给出的阻尼特性,并且阻尼 传递特性的系数设定为大于1。
    • 8. 发明授权
    • Method of measuring link voltage
    • 测量链路电压的方法
    • US09075089B2
    • 2015-07-07
    • US13822579
    • 2011-09-26
    • Kenichi Sakakibara
    • Kenichi Sakakibara
    • G01R19/00H02M1/44H02M7/797H02M5/458G01R19/25
    • G01R19/0084G01R19/2513H02M1/44H02M5/4585H02M7/797
    • A cycle is divided into a first period and a second period. The first period is longer than the second period. Two sections in which a unit voltage vector is adopted in the first period are adopted as a first section and a second section. A first measured value of a link voltage is measured at a midpoint of the first section and a second measured value of the link voltage is measured at a midpoint of the second section. Then, a representative value of the link voltage in a cycle including the first period is obtained by interpolation of the first measured value and the second measured value. A maximum value of the link voltage is obtained by dividing the representative value by cos θ.
    • 一个周期分为第一个周期和第二个周期。 第一期比第二期长。 采用在第一时段中采用单位电压矢量的两个部分作为第一部分和第二部分。 在第一部分的中点处测量链路电压的第一测量值,并且在第二部分的中点处测量链路电压的第二测量值。 然后,通过第一测量值和第二测量值的内插获得包括第一周期的循环中的链路电压的代表值。 链路电压的最大值通过将代表值除以cos&