Fault Tolerance Analysis of Non-isolated High Gain Boost Converter

Ankul Gupta, Raja Ayyanar, Sombuddha Chakraborty

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

Abstract

This paper analyzes the fault tolerance of non-isolated, modular, high gain dc-dc boost converter under different fault conditions. In the absence of transformer isolation, there are safety concerns in high gain converters in ensuring that high voltage stress is not applied to low voltage ports under any component failure conditions. The main idea is to increase the reliability of converter operation by making minimal modifications to the actual converter and control scheme as well as minimal component addition. Fuses are incorporated in the converter and their control co-ordination with different phase switches is proposed to ensure normal operation under various faults. The proposed method is discussed and implemented to ensure normal operation of converter under different component failures and verified through simulation results. The main faults under consideration are the short circuit fault and open circuit fault of the MOSFETs, diodes and coupling capacitors. The discussed methods are analyzed, tested and validated with a 35V-600V, 500W 4-phase hardware prototype.

Original languageEnglish (US)
Title of host publication2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages4372-4377
Number of pages6
ISBN (Electronic)9781728103952
DOIs
StatePublished - Sep 2019
Event11th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2019 - Baltimore, United States
Duration: Sep 29 2019Oct 3 2019

Publication series

Name2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019

Conference

Conference11th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2019
Country/TerritoryUnited States
CityBaltimore
Period9/29/1910/3/19

Keywords

  • Fault analysis
  • Fault tolerance
  • High gain
  • Interleaved boost
  • Non-isolated converter
  • Reliability

ASJC Scopus subject areas

  • Mechanical Engineering
  • Control and Optimization
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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