Mission Profile Based Adaptive Carrier Frequency Control for Modular Multilevel Converters for Medium Voltage Applications

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Abstract

In order to increase the efficiency and to improve the reliability of modular multilevel converters in medium voltage applications, this paper proposes an adaptive control method to choose an optimal carrier frequency dynamically according to power loading conditions of the modular multilevel converter. By evaluating the impact of the carrier frequency on the output current harmonic performance and the capacitor voltage ripple analytically, the proposed adaptive control can reduce the power loss and the thermal stress on the power semiconductors. Meanwhile, the electrical operation requirements can still be fulfilled. One-year mission profile is utilized to assess the energy efficiency
and the reliability performance between the proposed and the traditional control scheme. Moreover, theoretical analyses and simulation results are presented to demonstrate the effectiveness of the proposed control.
Original languageEnglish
Title of host publicationProceedings of 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia)
Number of pages6
Place of PublicationKorea
PublisherIEEE Press
Publication dateMay 2019
Pages1848-1853
Article number8796902
ISBN (Print)978-1-7281-1612-9
ISBN (Electronic)978-89-5708-313-0
Publication statusPublished - May 2019
Event2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia) - Busan, Korea, Republic of
Duration: 27 May 201930 May 2019

Conference

Conference2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia)
Country/TerritoryKorea, Republic of
CityBusan
Period27/05/201930/05/2019
SeriesInternational Conference on Power Electronics
ISSN2150-6078

Keywords

  • Multilevel Converters
  • Reliability
  • Power electronics

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