Increasing Voltage Gain by New Structure of Inductive Switching DC-DC Converter

Document Type : Research Article

Authors

1 Department of Electrical Eng., Science and Research Branch, Islamic Azad University, Tehran, Iran

2 Dept. of Electrical Eng., Faculty of Technical & Engineering, West Tehran Branch, Islamic Azad University, Tehran, Iran

Abstract

In a photovoltaic system, sun light energy is converted to electricity. The generated
electricity has a low DC voltage. In order to increase voltage generated by photovoltaic cells (PV),
an additive DC-DC converter is required to raise the low voltage to a good level which provides the
conditions for connection to DC-DC converters. Low wastes, low costs, and high efficiency are some
other specifications of such converters. This paper presents a new structure for an additive DC-DC
converter with inductive and capacitor switching for increasing high voltage gain to be used in PV
system. It is based on the inductive and non-insulated switching which increases voltage in a duty cycle
up to 10 times of input voltage. In addition, using a switch, low elements, and also low voltage stress
on the switch is the advantage of this new setup. The easy increasing of levels to reach the higher
voltages is another benefit of this structure. The paper continues with the analysis of circuit function
and PWM (Pulse Width Modulation) adjustments. PSCAD/EMTDC software is used for confirming the
authenticity of the performance of the suggested model. The results are presented.

Keywords

Main Subjects

References

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AUT Journal of Electrical Engineering
Volume 49, Issue 2
December 2017
Pages 173-178

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