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    HIGH YIELD AC-AC POWER CONVERTER AND METHOD THEREFOR
    2.
    发明申请
    HIGH YIELD AC-AC POWER CONVERTER AND METHOD THEREFOR 有权
    高功率交流电源转换器及其方法

    公开(公告)号：US20120314460A1

    公开(公告)日：2012-12-13

    申请号：US13156254

    申请日：2011-06-08

    申请人： Michael A. Carralero ,  Jimmy M. Quiambao

    发明人： Michael A. Carralero ,  Jimmy M. Quiambao

    IPC分类号： H02M5/451

    CPC分类号： H02M5/4585 ,  H02M5/452

    摘要： An AC to AC power converter has a rectifier configured to receive an AC signal. An H-Bridge is coupled to the rectifier and the DC Filter. A processor is coupled to the rectifier and to the H-Bridge, wherein the processor is configured to produce a pulse to modulate a rectified input or a constant DC input to the H-Bridge. A wave filter is coupled to the H-Bridge and configured to modulate an output of the H-Bridge to an AC voltage of a desired frequency, wherein an output of the wave filter is coupled to the processor.

    摘要翻译： AC到AC电力转换器具有被配置为接收AC信号的整流器。 H桥耦合到整流器和DC滤波器。 处理器耦合到整流器和H桥，其中处理器被配置为产生脉冲以调制整流输入或恒定DC输入到H桥。 波滤波器耦合到H桥并被配置为将H桥的输出调制到期望频率的AC电压，其中波滤波器的输出耦合到处理器。

    Method and apparatus for improving performance of AC machines
    3.
    发明授权
    Method and apparatus for improving performance of AC machines 失效
    提高交流电机性能的方法和装置

    公开(公告)号：US5019766A

    公开(公告)日：1991-05-28

    申请号：US376622

    申请日：1989-07-07

    申请人： John S. Hsu ,  Herbert H. Woodson

    发明人： John S. Hsu ,  Herbert H. Woodson

    IPC分类号： H02K3/28 ,  H02M5/452

    CPC分类号： H02P6/187 ,  H02K3/28 ,  H02M5/452

    摘要： A method and apparatus for improving the performance of polyphase AC machine is provided. The machines are excited with both a fundamental frequency and with an odd harmonic of the fundamental frequency so that a fundamental flux wave and an odd harmonic flux wave travel at a synchronized speed within the air-gap of the machine. The phase angle between the fundamental and odd harmonic excitation is controlled to increase the magnetic loading of one portion of the machine, while reducing the magnetic loading of the another portion of the machine. In this manner, redistribution of the flux densities is effected to more efficiently use the various components of the machine to increase torque.

    摘要翻译： 提供了一种改善多相交流电机性能的方法和装置。 这些机器都以基频和基频的奇次谐波激励，使得基波通量波和奇次谐波通量波以机器的气隙内的同步速度行进。 控制基波和奇次谐波激励之间的相位角，以增加机器一部分的磁负载，同时减小机器另一部分的磁负载。 以这种方式，实现磁通密度的再分布，以更有效地使用机器的各种部件来增加转矩。

    VSCF system with DC link harmonics control
    4.
    发明授权
    VSCF system with DC link harmonics control 失效
    VSCF系统具有直流链路谐波控制

    公开(公告)号：US5016157A

    公开(公告)日：1991-05-14

    申请号：US428759

    申请日：1989-10-30

    申请人： Gregory I. Rozman ,  Vijay K. Maddali

    发明人： Gregory I. Rozman ,  Vijay K. Maddali

    IPC分类号： H02M1/12 ,  H02M5/452

    CPC分类号： H02M1/12 ,  H02M5/452

    摘要： The problem of reducing harmonic content of AC bus voltage in a power system (10) is minimized using a controller (30) for a PWM inverter (38). The controller (30) develops a duty cycle command on a line (40) for controlling operation of the PWM inverter (38). The controller (30) develops the duty cycle command to maintain the PWM inverter output voltage at a desired level. This duty cycle command is modulated in accordance with the harmonic content evident on a DC bus (34) which supplies power to the PWM inverter (38).

    摘要翻译： 使用用于PWM逆变器（38）的控制器（30）来最小化在电力系统（10）中减少AC总线电压谐波含量的问题。 控制器（30）在用于控制PWM逆变器（38）的操作的线路（40）上产生占空比指令。 控制器（30）产生占空比指令，以将PWM逆变器输出电压维持在期望的水平。 该占空比指令根据向PWM逆变器（38）供电的DC总线（34）上明显的谐波含量进行调制。

    Method and apparatus for detecting AFE filter capacitor degradation
    6.
    发明授权
    Method and apparatus for detecting AFE filter capacitor degradation 有权
    用于检测AFE滤波电容器劣化的方法和装置

    公开(公告)号：US09294005B2

    公开(公告)日：2016-03-22

    申请号：US14042753

    申请日：2013-10-01

    申请人： Rangarajan Tallam ,  Russel Kerkman

    发明人： Rangarajan Tallam ,  Russel Kerkman

    IPC分类号： H02M5/45 ,  H02M7/12 ,  G01R31/02 ,  H02M5/452 ,  H02M5/458 ,  G01R31/42

    CPC分类号： H02M7/125 ,  G01R31/028 ,  G01R31/42 ,  H02M1/126 ,  H02M5/452 ,  H02M5/4585

    摘要： Methods and systems are disclosed for detecting capacitor degradation in an input filter of an active front end power conversion system in which voltage and current sensing is performed to determine sequence component impedance asymmetry to detect filter capacitor degradation according to the value of an off-axis admittance matrix component for Delta or Y-connected filter capacitor banks without sensitivity to voltage unbalance, and with the capability to identify particular degraded capacitor locations based on individual impedance values.

    摘要翻译： 公开了用于检测有源前端功率转换系统的输入滤波器中的电容器劣化的方法和系统，其中执行电压和电流感测以确定顺序分量阻抗不对称性，以根据离轴导纳的值来检测滤波电容器劣化 用于Delta或Y连接的滤波电容器组的矩阵分量，不对电压不平衡敏感，并且具有基于各个阻抗值识别特定劣化电容器位置的能力。

    METHOD AND APPARATUS FOR DETECTING AFE FILTER CAPACITOR DEGRADATION
    7.
    发明申请
    METHOD AND APPARATUS FOR DETECTING AFE FILTER CAPACITOR DEGRADATION 有权
    用于检测过滤器电容器降解的方法和装置

    公开(公告)号：US20150092460A1

    公开(公告)日：2015-04-02

    申请号：US14042753

    申请日：2013-10-01

    申请人： Rangarajan Tallam ,  Russel Kerkman

    发明人： Rangarajan Tallam ,  Russel Kerkman

    IPC分类号： H02M7/12 ,  G01R31/02 ,  G01R27/00

    CPC分类号： H02M7/125 ,  G01R31/028 ,  G01R31/42 ,  H02M1/126 ,  H02M5/452 ,  H02M5/4585

    摘要： Methods and systems are disclosed for detecting capacitor degradation in an input filter of an active front end power conversion system in which voltage and current sensing is performed to determine sequence component impedance asymmetry to detect filter capacitor degradation according to the value of an off-axis admittance matrix component for Delta or Y-connected filter capacitor banks without sensitivity to voltage unbalance, and with the capability to identify particular degraded capacitor locations based on individual impedance values.

    摘要翻译： 公开了用于检测有源前端功率转换系统的输入滤波器中的电容器劣化的方法和系统，其中执行电压和电流感测以确定顺序分量阻抗不对称性，以根据离轴导纳的值来检测滤波电容器劣化 用于Delta或Y连接的滤波电容器组的矩阵分量，不对电压不平衡敏感，并且具有基于各个阻抗值识别特定劣化电容器位置的能力。

    WIND POWER CONVERTER DEVICE AND CONVERTER DEVICE
    10.
    发明申请
    WIND POWER CONVERTER DEVICE AND CONVERTER DEVICE 有权
    风力转换器装置和转换器装置

    公开(公告)号：US20160069327A1

    公开(公告)日：2016-03-10

    申请号：US14794844

    申请日：2015-07-09

    申请人： DELTA ELECTRONICS, INC.

    发明人： Chang-Yong WANG ,  Li CAI ,  Yan-Song LU

    IPC分类号： F03D9/00 ,  H02M1/00 ,  H02M1/42 ,  H02M5/44

    CPC分类号： H02M5/4505 ,  F03D9/255 ,  H02M5/45 ,  H02M5/452 ,  H02M5/4585 ,  H02M7/7575 ,  H02M2001/0077 ,  Y02E10/72 ,  Y02E10/76

    摘要： A wind power converter device is provided. The wind power converter device includes grid side converters, generator side converters and a DC bus module. Each of the grid side converters includes grid side outputs electrically coupled to a grid and a first and a second DC inputs. Each two of the neighboring grid side converters are connected in series at the second and the first DC inputs. Each of the generator side converters includes generator side inputs electrically coupled to a generator device and a first and a second DC outputs. Each two of the neighboring generator side converters are coupled in series at the second and the first DC outputs. The DC bus module is electrically coupled between the grid side converters and the generator side converters.

    摘要翻译： 提供风力发电变换装置。 风力发电装置包括电网侧转换器，发电机侧转换器和直流总线模块。 每个电网侧转换器包括电耦合到电网的电网侧输出和第一和第二DC输入。 每个两个相邻的电网侧转换器在第二个和第一个直流输入端串联连接。 每个发生器侧转换器包括电耦合到发电机装置的发电机侧输入和第一和第二DC输出。 相邻发生器侧转换器中的每两个在第二和第一直流输出端串联耦合。 DC总线模块电耦合在电网侧转换器和发电机侧转换器之间。