Affiliation:
1. Department of Electrical Engineering, Naqshejahan Higher Education Institute, Isfahan, Iran
Abstract
In this paper, a new high step-up converter with a simple structure is
presented. The auxiliary circuit of the proposed converter is in the form of
active clamp, which provides soft switching condition under zero voltage for
the main and auxiliary switches, hence the converter has high efficiency.
Since the auxiliary switch added in the converter works as an active clamp
and has a complementary command with the main switch, the proposed converter
is not complicated in terms of the control circuit and does not need to
design a new control circuit. This converter has a high voltage gain that
provides a high output voltage with a lower duty cycle, so it is suitable
for a new energy production system such as a solar system. The proposed
converter has been fully analyzed and in order to prove the theoretical
analysis, an experimental prototype has been implemented and tested at a
power of 500 W, which in this power an efficiency of about 97.3% has been
obtained.
Publisher
National Library of Serbia