Electric power conversion systems – Current conversion – Having plural converters for single conversion
Reexamination Certificate
2007-06-27
2010-12-14
Berhane, Adolf (Department: 2838)
Electric power conversion systems
Current conversion
Having plural converters for single conversion
C363S067000
Reexamination Certificate
active
07852643
ABSTRACT:
A system and method for controlling cross current in an interleaved power converter system having a plurality of converter threads coupled in parallel includes collecting a feedback current from each thread and obtaining a normal current and a differential mode current for each thread, based on its respective feedback current. The normal current of each thread is regulated to a commanded thread normal current value via a respective normal current control loop based on d-q rotating frame parameters. A differential mode cross current of each thread is regulated to zero via a respective differential mode cross current control loop based on d-q rotating frame parameters; while a differential mode cross current DC offset of each thread is regulated to zero via a respective differential mode cross current control loop based on stationary frame parameters.
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Tan Zhuohui
Wang Changyong
Weng Haiqing
Zhang Richard S.
Agosti Ann M.
Berhane Adolf
General Electric Company
Mehari Yemane
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