Invention Grant
- Patent Title: Filter capacitor degradation detection apparatus and method
-
Application No.: US13570781Application Date: 2012-08-09
-
Publication No.: US09653984B2Publication Date: 2017-05-16
- Inventor: Yogesh Popatlal Patel , Lixiang Wei , Russel J. Kerkman
- Applicant: Yogesh Popatlal Patel , Lixiang Wei , Russel J. Kerkman
- 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: Fay Sharpe LLP
- Main IPC: H02M1/32
- IPC: H02M1/32 ; H02M1/12 ; H02M5/458 ; H01G4/40 ; G01R31/42 ; G01R31/02
Abstract:
Power conversion systems and methods are presented for detecting input filter capacitor degradation or approach of end of operational life based on filter capacitor current measurements using single and/or dual threshold comparisons for computed instantaneous sum of squares of filter currents or power values.
Public/Granted literature
- US20130286692A1 FILTER CAPACITOR DEGRADATION DETECTION APPARATUS AND METHOD Public/Granted day:2013-10-31
Information query
