Thermal Analysis and Comparison of Common-Ground Voltage Source Inverter

K. S.Phani Kiranmai, Roopa Viswadev Damodaran, Mariam Mahmoud Mastafa Alshanqiti, Lin Tayara, Shahad Mohamed Obaid Alsereidi, Alyazia Juma Ateeq Aldhaheri, Hussain Shareef

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

Abstract

Non-isolated inverters have gained popularity in low-power renewable applications. Among these, the common-ground inverter has the advantage of eliminating leakage currents and common-mode voltages by bypassing the parasitic capacitance. Many of the common-ground topologies have a higher number of switching and passive components in comparison to the commonly used H-bridge voltage source inverter (HB-VSI). Nevertheless, there exists a few common-ground voltage source inverters (CG-VSIs) that have a similar number of components. However, it is necessary to analyze the power losses and thermal behavior of the CG-VSI and compare the chances of failure in comparison to the conventional HB-VSI. This paper presents the switch stress, power loss, and thermal analysis of the switching devices in a CG-VSI that has the same number of components and a similar configuration as the HB-VSI. The simulations are performed on the PLECS software for different loads and switching frequencies. The results indicate that each of the switches of the CG-VSI has different stresses, power losses, and thermal characteristics. Furthermore, the thermal behavior of switches in the considered CG-VSI can be comparable if the switches are chosen appropriately.

Original languageEnglish
Title of host publication2022 International Conference on Electrical and Computing Technologies and Applications, ICECTA 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages172-177
Number of pages6
ISBN (Electronic)9781665456005
DOIs
Publication statusPublished - 2022
Event2022 International Conference on Electrical and Computing Technologies and Applications, ICECTA 2022 - Ras Al Khaimah, United Arab Emirates
Duration: Nov 23 2022Nov 25 2022

Publication series

Name2022 International Conference on Electrical and Computing Technologies and Applications, ICECTA 2022

Conference

Conference2022 International Conference on Electrical and Computing Technologies and Applications, ICECTA 2022
Country/TerritoryUnited Arab Emirates
CityRas Al Khaimah
Period11/23/2211/25/22

Keywords

  • Common-ground inverter
  • leakage current
  • normalized switch stress
  • switch power toss
  • thermal analysis
  • virtual junction temperature

ASJC Scopus subject areas

  • Artificial Intelligence
  • Computer Networks and Communications
  • Computer Science Applications
  • Signal Processing
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Safety, Risk, Reliability and Quality
  • Control and Optimization

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