Parallel-connected converters with maximum power tracking

An improved maximum power tracking (MPT) approach with dither signal injection is presented, including the results of computer simulation and prototype testing. It incorporates a "shared-bus" current-sharing method that can regulate many paralleled current-mode DC-DC power converters. The...

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Bibliographic Details
Main Authors: Siri, K., Conner, K.A.
Format: Conference Proceeding
Language:English
Subjects:
Computer simulation
DC-DC power converters
Frequency
Maintenance
Power system reliability
Power system simulation
Robust control
Testing
Virtual prototyping
Voltage control
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Summary:An improved maximum power tracking (MPT) approach with dither signal injection is presented, including the results of computer simulation and prototype testing. It incorporates a "shared-bus" current-sharing method that can regulate many paralleled current-mode DC-DC power converters. The approach yields nearly uniform current-sharing as well as reliable MPT performance. Utilizing the combined current-sharing and MPT approaches, the MPT power system provides several advantages: (1) ease of system power expansion; (2) stable current-sharing; and (3) autonomous MPT during loss of output voltage regulation. The robust MPT control maintains both stable amplitude and frequency of solar-array voltage ripple.
DOI:10.1109/APEC.2002.989279