Title :
Ramptime current control [for power convertors]
Author :
Borle, Lawrence J. ; Nayar, Chem V.
Author_Institution :
PowerSearch Ltd., Bentley, WA, Australia
Abstract :
Ramptime current control is a new robust technique for directly controlling the inductor current in switched power converters. It is largely invariant with respect to circuit parameters and system voltages. Ramptime is a sliding mode method producing zero average current error (ZACE) in each switching period with a controlled switching frequency band. The converter transient response, ripple current and switching frequency band are discussed. Simulation and experimental results showing negligible low order harmonics are presented for a single phase AC-DC power converter
Keywords :
AC-DC power convertors; control system analysis; control system synthesis; electric current control; harmonic distortion; power system harmonics; rectifying circuits; robust control; switching circuits; transient response; variable structure systems; circuit parameters; low order harmonics; ramptime current control; ripple current; robust inductor current regulation; single phase AC-DC power converter; sliding mode method; switched power converters; switching frequency band; switching period; system voltages; transient response; zero average current error; Circuits; Current control; Error correction; Inductors; Robust control; Sliding mode control; Switching converters; Switching frequency; Transient response; Voltage;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1996. APEC '96. Conference Proceedings 1996., Eleventh Annual
Conference_Location :
San Jose, CA
Print_ISBN :
0-7803-3044-7
DOI :
10.1109/APEC.1996.500535
