Implementation of a new high step-up DC-DC converter for applications in renewable energy conversion of a smart grid

Yu Pin Hung, Hong-Tzer Yang, Chung Chi Wang, Jiann-Fuh Chen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

A high step-up DC-DC converter with three-winding coupled inductor and clamp capacitor is proposed in the paper. The three-winding coupled inductor and voltage doubler are used to increase the voltage conversion ratio without an extreme duty ratio. The input current is operated at continuous conduction mode (CCM) with reduced input current ripple; the lifetime and reliability of the input filter can be improved accordingly. Clamp capacitor in the proposed converter is to clamp and reduce the voltage stress of active switch. The active switch with low power-rating and low on-resistance can thus be employed to reduce switching and conduction losses. In the proposed circuit, the leakage energy can also be recycled to the output capacitor at the load terminal and the reverse-recovery problem of output diode can be alleviated to increase the efficiency. Simulated and experimental results have been presented to verify the effectiveness of the proposed circuit.

Original languageEnglish
Title of host publicationAPAP 2011 - Proceedings
Subtitle of host publication2011 International Conference on Advanced Power System Automation and Protection
Pages2140-2145
Number of pages6
Volume3
DOIs
Publication statusPublished - 2011
Event2011 International Conference on Advanced Power System Automation and Protection, APAP 2011 - Beijing, China
Duration: 2011 Oct 162011 Oct 20

Other

Other2011 International Conference on Advanced Power System Automation and Protection, APAP 2011
CountryChina
CityBeijing
Period11-10-1611-10-20

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Safety, Risk, Reliability and Quality

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