Invention Grant
US08174810B2 Method and apparatus for reducing differential mode and common mode reflections in motor drives
有权
用于减少电动机驱动器中的差模和共模反射的方法和装置
- Patent Title: Method and apparatus for reducing differential mode and common mode reflections in motor drives
- Patent Title (中): 用于减少电动机驱动器中的差模和共模反射的方法和装置
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Application No.: US12135661Application Date: 2008-06-09
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Publication No.: US08174810B2Publication Date: 2012-05-08
- Inventor: Rangarajan M. Tallam , Gary L. Skibinski
- Applicant: Rangarajan M. Tallam , Gary L. Skibinski
- Applicant Address: US OH Mayfield Heights
- Assignee: Rockwell Automation Technologies, Inc.
- Current Assignee: Rockwell Automation Technologies, Inc.
- Current Assignee Address: US OH Mayfield Heights
- Agency: Boyle Fredrickson, S.C.
- Agent R. Scott Speroff; John M. Miller
- Main IPC: H02H3/20
- IPC: H02H3/20 ; H02H9/04 ; H03H5/00
Abstract:
A filter device reduces reflections on power lines from the motor drive to AC motors by providing a differential mode choke in series with a common mode choke both shunted by resistances tailored to the characteristic impedance of the power cable for differential mode and common mode reflections respectively. By treating both common mode based and differential mode based reflections, superior transient control and motor drive performance may be obtained.
Public/Granted literature
- US20090303652A1 METHOD AND APPARATUS FOR REDUCING DIFFERENTIAL MODE AND COMMON MODE REFLECTIONS IN MOTOR DRIVES Public/Granted day:2009-12-10
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