Fault-Tolerant Scaleable Solar Power Bus Architectures with Maximum Power Tracking
نویسندگان
چکیده
An improved maximum power tracking (MPT) approach with dither signal injection is presented. It incorporates a “shared-bus’’ current-sharing method that can regulate many paralleled current-mode dc-dc converters. Through simulation, the approach yields -nearly uniform currentsharing as well as reliable MPT performance. Utilizing the combined current-sharing and MPT approaches, three proposed architectures provide several advantages: (1) ease of system power expansion, (2) stable current-sharing, and (3) autonomous MPT during loss of output voltage regulation. Both stable amplitude and frequency of array voltage ripple are maintained by the robust MPT control.
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