Precise Loss Calculation Caused by Voltage drop of Capacitors in Switched-Capacitor Multilevel Inverter

  • Bagher Karami
  • , Xiaoteng Li
  • , Xu Yang
  • , Mehdi Samizadeh
  • , Wenjie Chen
  • , Majid Kamranian
  • , Alaaeldin Hassan
  • , Mohamad Abou Houran

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

The accuracy of the estimate of the calculation of power dissipation of the circuit in the technical evaluation and the application of the appropriate equipment and thus the final cost has a significant impact. In switched-capacitor multilevel inverters (SCMLIs), to build higher levels, the capacitors are series connected to the output and pump the stored energy to the load, which reduces the voltage of the capacitors and creates a spike current when the capacitor is paralleled with the source. Charging and discharging modes by the switching frequency makes small spikes. In the intervals, which the capacitor is continuously connected to the output as the series, thus causes more voltage drop and massive spikes. In this paper, small and massive spikes due to the voltage drop of the capacitor and the energy dissipation caused by that are calculated and formulated individually and accurately. MATLAB-SIMULINK is used to the modelling and simulation.

Original languageEnglish
Title of host publication2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages511-516
Number of pages6
ISBN (Electronic)9781728153018
DOIs
StatePublished - 29 Nov 2020
Externally publishedYes
Event9th IEEE International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia - Nanjing, China
Duration: 29 Nov 20202 Dec 2020

Publication series

Name2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia

Conference

Conference9th IEEE International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia
Country/TerritoryChina
CityNanjing
Period29/11/202/12/20

Keywords

  • Multilevel inverter
  • massive spikes
  • switched capacitor
  • switching loss
  • voltage drop

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