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MODELING OF A THREE‐PHASE STEP UP/DOWN AC/DC CONVERTER
Author(s) -
Chen JengYue,
Pan ChingTsai,
Huang YiShuo
Publication year - 1999
Publication title -
asian journal of control
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.769
H-Index - 53
eISSN - 1934-6093
pISSN - 1561-8625
DOI - 10.1111/j.1934-6093.1999.tb00007.x
Subject(s) - control theory (sociology) , duty cycle , linearization , power flow , power factor , ac power , small signal model , three phase , voltage , coordinate system , power (physics) , computer science , engineering , electric power system , physics , nonlinear system , electrical engineering , control (management) , artificial intelligence , quantum mechanics
In this paper, analytic duty cycle control laws for a three‐phase step up/down converter containing seven active switches are first derived to achieve a clean sinusoidal input current, adjustable power factor, bidirectional power flow capability and clean output DC voltage. Then a DC model and a small signal model are derived by means of coordinate transformation, perturbation and linearization. Finally, some simulation results are also presented to verify the validity of the theoretical results.