Title :
High efficiency discontinuous mode interleaved multiphase bidirectional dc-dc converter
Author :
Nandankar, P. ; Aware, M.V.
Author_Institution :
Electr. Eng. Dept., Visvesvaraya Nat. Inst. of Technol., Nagpur, India
Abstract :
The buck-boost dc-dc converters with bidirectional features are mostly inefficient with switching and passive component loss. The multiphase dc-dc converter with interleaving of inductor current reduces the ripple. This paper presents the bidirectional dc-dc converter operating in discontinuous mode to minimize the passive inductor. The turnoff loss due to discontinuous operation is taken care by design of snubber capacitance across the switch to improve the conversion efficiency. The design procedure is presented with an algorithm to optimize the component sizing for the highest efficiency operation from low to full load operating conditions. The operation of this converter is presented with three legged interleaving in simulation. The proposed converter prototype design and its implementation are given with operational results.
Keywords :
DC-DC power convertors; capacitance; inductors; snubbers; switching convertors; zero voltage switching; buck-boost dc-dc converters; component sizing; high efficiency discontinuous mode; inductor current reduction; interleaved multiphase bidirectional dc-dc converter; passive component loss; passive inductor minimization; snubber capacitance design; switching component loss; zero voltage switching; Algorithm design and analysis; Capacitors; Inductance; Inductors; Switches; Switching frequency; Zero voltage switching; Bidirectional DC-DC Converter; snubbers; zero voltage switching;
Conference_Titel :
Power Electronics, Drives and Energy Systems (PEDES), 2012 IEEE International Conference on
Conference_Location :
Bengaluru
Print_ISBN :
978-1-4673-4506-4
DOI :
10.1109/PEDES.2012.6484357
