October 27, 2021

mohammad pichan

Degree: Assistant professor
Address:
Education: Ph.D in elecrical
Phone: 08633400222
Faculty: Department Of Electrical Engineering

Research

Title P‐type non‐isolated boost DC‐DC converter with high voltage gain and extensibility for DC microgrid applications
Type Article
Keywords
continues current mode (CCM), discontinuous current mode (DCM), microgrids, non-isolated step-up DC-DC converter, voltage gain
Journal INTERNATIONAL JOURNAL OF CIRCUIT THEORY AND APPLICATIONS
DOI https://doi.org/10.1002/cta.2701
Researchers Farid Mohammadi (First researcher) , Mohammad Farhadi Kangarlu (Second researcher) , Hasan Rastegar (Third researcher) , Amir Khorsandi (Fourth researcher) , mohammad pichan (Fifth researcher)

Abstract

In this paper, the concept of converter design, using the least number of elements and achieving high voltage gain at the low duty cycle, is proposed for the microgrids. One of the important issues in the microgrids is boosting the low voltage output of sources to the utility voltage level. Therefore, the step-up DC-DC converters are widely used in these systems to attain the utility voltage. The benchmarking of the converters mainly in terms of the voltage gain, efficiency, the number of active and passive components, stresses on semiconductors, and simplicity is considered. In this paper, a new extendable non-isolated boost DC-DC converter is presented. Comparing the conventional boost converter, the basic structure of the proposed converter has a high voltage gain and reduced stress on the switch. To increase the voltage gain, the basic structure of the proposed converter can be easily extended. The modulation technique employed is high-frequency pulse-width modulation (PWM). The detailed analysis of the proposed converter in continuous current mode (CCM) and discontinuous current mode (DCM) is presented. The relations between currents and voltages and the voltage gain in CCM and DCM are obtained. Experimental results are carried out to verify theoretical concepts by using the hardware prototype.