DocumentCode :
120991
Title :
High gain high power non-isolated DC-DC converter for renewable energy applications
Author :
Sri Revathi, B. ; Prabhakar, M.
Author_Institution :
Sch. of Electr. Eng., VIT Univ., Chennai, India
fYear :
2014
fDate :
7-9 Jan. 2014
Firstpage :
229
Lastpage :
234
Abstract :
In this paper, a non-isolated high step-up high power DC-DC converter based on coupled inductor and voltage multiplier cell (VMC) is proposed for renewable energy applications. To obtain high voltage gain and high output power, three interleaved coupled inductors and three VMCs are used. Each VMC consists of secondary winding of the coupled inductor, two diodes and two capacitors which charge and discharge alternately through the diodes. The three stages present in interleaved boost converter reduce the current stress on the switch and input current ripple. Voltage stress on the power switches is reduced by using coupled inductors with proper turns ratio. The proposed converter produces a voltage gain of 23 and delivers 3kW power output. The converter has a modular structure which facilitates smooth increment in voltage gain and output power requirement. The operating principle, characteristic waveforms, design details and simulation results of the proposed converter prove the desirable features.
Keywords :
DC-DC power convertors; inductors; power semiconductor switches; voltage multipliers; VMC; current stress; input current ripple; interleaved boost converter; interleaved coupled inductors; nonisolated high step-up high power DC-DC converter; output power requirement; power 3 kW; power switches; renewable energy applications; secondary winding; voltage gain; voltage multiplier cell; voltage stress; Conferences; Decision support systems; High step up; high power; interleaved boost converter; voltage multiplier cell;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electrical Energy Systems (ICEES), 2014 IEEE 2nd International Conference on
Conference_Location :
Chennai
Print_ISBN :
978-1-4799-3738-7
Type :
conf
DOI :
10.1109/ICEES.2014.6924173
Filename :
6924173
Link To Document :
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