Title :
Analysis and implementation of a high boost DC-DC converter for renewable energy power systems
Author :
Vijayan, Vivek ; Sujith, Mini ; Manjunath, H.V.
Author_Institution :
Amrita Sch. of Eng., Amrita Vishwa Vidyapeetham, Bangalore, India
Abstract :
A high conversion ratio dc-dc converter suitable for renewable energy applications has been investigated and presented here. A high-boost dc-dc converter is designed with high voltage conversion ratio for fuel cell or photovoltaic systems. The proposed system consists of a current-fed half bride at the input side, an active-clamp circuit and an output voltage-doubler with three stages of boosting operations. The reverse-recovery issues of the rectifying diodes are solved by a series resonant circuit of the output voltage doubler. The high voltage spikes of the switches and the effect of energy stored in the leakage inductance of the high frequency transformer have been reduced by an active-clamp circuit. The modes of operation of the proposed converter are analysed and verified using PSIM simulation platform and a hardware laboratory prototype is implemented and results are presented.
Keywords :
DC-DC power convertors; active networks; fuel cell power plants; photovoltaic power systems; renewable energy sources; DC-DC converter; PSIM simulation; active-clamp circuit; fuel cell systems; hardware laboratory prototype; high frequency transformer; high voltage conversion ratio; output voltage doubler; output voltage-doubler; photovoltaic systems; renewable energy power systems; series resonant circuit; Capacitors; Clamps; DC-DC power converters; Inductance; Inductors; Low voltage; Switches; ZCS; current-fed half bridge converter; renewable energy sources; voltage-doubler rectifier;
Conference_Titel :
Emerging Research Areas: Magnetics, Machines and Drives (AICERA/iCMMD), 2014 Annual International Conference on
Conference_Location :
Kottayam
Print_ISBN :
978-1-4799-5201-4
DOI :
10.1109/AICERA.2014.6908162
