A Comprehensive Review of Fault Diagnosis and Tolerant Control in DC-DC Converters for DC Microgrids

Shahamat Shahzad Khan,Huiqing Wen

doi:10.1109/access.2021.3083721

Abstract

As the power interface between the energy storage devices (ESD) and the dc link of DC Micro-grids, dc-dc converters, which have been regarded as the heart of many critical applications such as electrical vehicles, data center, and aerospace power systems, have gained more and more attentions recently. The fault diagnosis and tolerant control in dc-dc converters become essential to ensure a reliable and robust power system especially for critical applicants, where a sudden stoppage, loss of functionality, or degradation of performance might result in a catastrophe. This paper focuses on different types of faults in dc-dc converters by analyzing main failure spots and mechanism, covering catastrophic fault and parametric fault from component to system. A comprehensive review of the up-to-date fault mode analysis, fault diagnosis signals and algorithms, and fault tolerant control in various dc-dc topologies has been presented. This research will provide a useful design guideline for the reliability improvement in all forms of dc-dc converters.

Highlights

Reliance on fossil fuel known as dirty fuel for energy generation and transportation is contributing to climate change, and causing health issues by releasing toxins in our environment
This paper gives a comprehensive review of the up-to-date fault mode analysis, fault diagnosis signals, algorithms, and fault tolerant control in various DC-DC Converter topologies
By the illustration of various component damages, typical faults in dc-dc converters have been classified into catastrophic faults and parametric or soft faults

Summary

INTRODUCTION

Reliance on fossil fuel known as dirty fuel for energy generation and transportation is contributing to climate change, and causing health issues by releasing toxins in our environment. There is no ultimate converter that is suited perfectly to all possible applications These days, high performance converters are employed which have the advantage of wide input output range, high gain and low cost. For mission critical applications such as medical equipment, nuclear power plants, full electric vehicles and aircraft control, the reliability of these converters is of the highest importance In designing these converters, voltage and current stresses on the components are kept at a minimum. On the other hand, is employed in order to ensure converter reliability and continuity of service These days, with the introduction of more efficient and complex converter topologies for wide ranging applications, novel FD and FT techniques are introduced. This research will provide a useful design guideline for the reliability improvement in all forms of dc-dc converters

FAULTS CLASSIFICATION

REVIEW OF FAULT TOLERANT SCHEMES

Findings

CONCLUSION