Abstract:
In this paper, the voltage
regulation problem associated with mode
switching in low voltage hybrid system has
been addressed .This paper presents a hybrid
zero voltage-switching (ZVS) isolated front
end interface dc–dc converter which
combines a boost half bridge (BHB) cell and
a full-bridge (FB) cell, so that two different
type of power sources, i.e., both current fed
and voltage fed, can be combined togetherly
by the proposed soft switched converter for
various applications, such as pv cell and
wind energy. By using two high-frequency
transformers and a combined leg of
switches, number of switches and gate
driver circuits can be minimized. By phaseshift
control, the converter can achieve ZVS
turn-on of active switches and zero-current
switching (ZCS) turn-off of diodes. In this
paper, derivation, analysis, and design of the
proposed converter are presented. Intelligent
Adaptive Neuro-Fuzzy Inference System
(ANFIS) based supervisory EMS(Energy
Management System) controls the charge/
discharge of the energy storage system
(ESS) when there is voltage changes to
cooperate with ANFISPID in point of
common coupling( PCC) voltage regulation.Finally, a 5–10V input, 600–700Voutput
prototype with a 600W nominal power
rating is built up and tested to demonstrate
the effectiveness of the proposed converter
topology.
