公开(公告)号：US20080049460A1

公开(公告)日：2008-02-28

申请号：US11843268

申请日：2007-08-22

Applicant: Ned Mohan ,  Krushna Mohapatra

Inventor： Ned Mohan ,  Krushna Mohapatra

IPC: H02M5/40

CPC classification number: H02M5/271 ,  H02M7/53873 ,  H02M2007/53876

Abstract: An AC machine control system for an AC machine (motor, generator, transformer, etc.) having open-ended windings, the control system comprising a drive circuit configured to transfer AC power between a first set of voltages and each end of the open-ended windings without the use of a substantial energy storage device, while eliminating common mode voltage and/or injecting zero sequence voltages.

Abstract translation: 一种用于具有开放式绕组的交流电机（电动机，发电机，变压器等）的交流电机控制系统，所述控制系统包括驱动电路，所述驱动电路被配置为在第一组电压之间传递AC电力， 而不使用大量的能量存储装置，同时消除共模电压和/或注入零序电压。

公开(公告)号：US20070268728A1

公开(公告)日：2007-11-22

申请号：US11752110

申请日：2007-05-22

Applicant: Ned Mohan ,  Krushna Mohapatra ,  Satish Thuta ,  Gaurav Aggarwal ,  Philip Jose

Inventor： Ned Mohan ,  Krushna Mohapatra ,  Satish Thuta ,  Gaurav Aggarwal ,  Philip Jose

IPC: H02M7/5387

CPC classification number: H02M5/297 ,  H02M5/271

Abstract: A matrix converter includes a plurality of switches that electrically connect a multi-phase input voltage source to a multi-phase load; and a controller to output pulse-width modulated (PWM) switching signals to control the switches to produce a multi-phase output voltage from the multi-phase input voltage source. The controller outputs the PWM switching signals by modulating a carrier signal with a time-varying signal having a frequency determined from a desired output frequency for the output voltage.

Abstract translation: 矩阵转换器包括将多相输入电压源电连接到多相负载的多个开关; 以及控制器，用于输出脉冲宽度调制（PWM）切换信号以控制开关以从多相输入电压源产生多相输出电压。 控制器通过用从输出电压的期望输出频率确定的频率的时变信号调制载波信号来输出PWM开关信号。