Design and Control of 81-level Inverter Using Single Source for Electric Vehicles

Hataş H., Almalı M. N., Karakılıç M.

1ST INTERNATIONAL CONFERENCE ON SCIENTIFIC AND ACADEMIC RESEARCH, Konya, Türkiye, Konya, Türkiye, 10 - 13 Aralık 2022, ss.369

  • Yayın Türü: Bildiri / Özet Bildiri
  • Basıldığı Şehir: Konya
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.369
  • Van Yüzüncü Yıl Üniversitesi Adresli: Evet

Özet

 Multilevel inverters have advantages over conventional inverters due to reduced voltage stress and loss of semiconductors, reduced THD, low dv/dt and low electromagnetic interference. In case of DC link voltage increase, conventional 2-level inverter switching becomes insufficient due to voltage constraint. Therefore, it is a better choice to use multilevel inverter topologies using low-voltage semiconductors. The multi-source requirement for electric vehicle applications makes it difficult to charge power supplies. Therefore, it is desirable to obtain the required sources from a single DC source. In this study, the Cascaded H-Bridge Multilevel inverter topology, which is produced with a high frequency DC link using only one source, is investigated. In the study, four DC sources were used asymmetrically, 16 power switches and an HFL system to obtain 81 voltage levels. The nearest level control ensured that the THD value was minimal. Without the filter, the THD value of 1.02% was observed at the proposed 81- level inverter output.