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Capacitor Voltage Balancing in Hybrid Cascaded Multilevel Inverter Using Genetic Algorithm at Higher Modulation Indices

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

Abstract

In this paper a three-phase, eleven level hybrid cascaded multilevel inverter (HC-MLI) synthesizing an eleven-level output voltage using two dc sources, a precharged capacitor and twelve switches for higher modulation indices is proposed. Genetic algorithm (GA) has been used to compute all the switching angles of the proposed eleven level HC-MLI for eliminating specified odd harmonics (5 th , 7 th , 11 th and 13 th ) from the output voltage. In the proposed GA optimized HC-MLI, capacitor voltage balance is ensured even at higher modulation indices by utilizing the redundant switching states available at different switching instances. A d-q synchronous reference-frame-based controller has been used in the proposed HC-MLI for regulating both sensed capacitor voltage and ac output voltage. The performance of the proposed three phase, eleven level HC-MLI has been verified through simulation and experimentation on a 1.5-kW prototype using closed-loop control.

Original languageEnglish
Title of host publication2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3688-3693
Number of pages6
ISBN (Electronic)9781479973118
DOIs
Publication statusPublished - 03-12-2018
Event10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018 - Portland, United States
Duration: 23-09-201827-09-2018

Publication series

Name2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018

Conference

Conference10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018
Country/TerritoryUnited States
CityPortland
Period23-09-1827-09-18

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Control and Optimization
  • Computer Networks and Communications
  • Hardware and Architecture
  • Information Systems and Management

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