公开(公告)号：US20100171456A1

公开(公告)日：2010-07-08

申请号：US12348422

申请日：2009-01-05

Applicant: SIBAPRASAD CHAKRABARTI ,  RAJKUMAR COPPARAPU

Inventor： SIBAPRASAD CHAKRABARTI ,  RAJKUMAR COPPARAPU

IPC: H02P6/14

CPC classification number: H02M7/53875 ,  H02M7/5395 ,  H02M2001/327

Abstract: Methods and apparatus are provided for operation of a voltage source inverter. A method of operating a voltage source inverter having an output with multiple voltage phases having a DC voltage level, the method comprising sensing a low output frequency condition; determining a DC voltage offset responsive to the low output frequency condition; and applying the DC voltage offset when operating the voltage source inverter resulting in a change to the DC voltage level of the multiple voltage phases.

Abstract translation: 提供了用于电压源逆变器的操作的方法和装置。 一种操作具有具有DC电压电平的多个电压相位的输出的电压源逆变器的方法，所述方法包括检测低输出频率条件; 响应于所述低输出频率条件确定DC电压偏移; 以及在操作所述电压源逆变器时施加所述DC电压偏移，从而导致所述多个电压相位的直流电压电平的变化。

公开(公告)号：US08120306B2

公开(公告)日：2012-02-21

申请号：US12348422

申请日：2009-01-05

Applicant: Sibaprasad Chakrabarti ,  Rajkumar Copparapu

Inventor： Sibaprasad Chakrabarti ,  Rajkumar Copparapu

IPC: H02P27/04

CPC classification number: H02M7/53875 ,  H02M7/5395 ,  H02M2001/327

Abstract: Methods and apparatus are provided for operation of a voltage source inverter. A method of operating a voltage source inverter having an output with multiple voltage phases having a DC voltage level, the method comprising sensing a low output frequency condition; determining a DC voltage offset responsive to the low output frequency condition; and applying the DC voltage offset when operating the voltage source inverter resulting in a change to the DC voltage level of the multiple voltage phases.

Abstract translation: 提供了用于电压源逆变器的操作的方法和装置。 一种操作具有具有DC电压电平的多个电压相位的输出的电压源逆变器的方法，所述方法包括检测低输出频率条件; 响应于所述低输出频率条件确定DC电压偏移; 以及在操作所述电压源逆变器时施加所述DC电压偏移，从而导致所述多个电压相位的直流电压电平的变化。