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Investigation of low switching frequency control of a three phase cascaded H-bridge multilevel inverter

Conference Paper


Abstract


  • This paper presents analysis of a three phase hybrid multilevel inverter (MLI) by applying low frequency stair case control strategy. The proposed MLI contains three cascaded stages, auxiliary stage-1, auxiliary stage-2, and main stage. The main stage contains three half-bridge cells which are connected in parallel with a common DC power supply. Each of the stages in the auxiliary stages consists of three H-bridge where the H-bridge cells contain isolated DC power supplies. The proposed hybrid MLI is tested for symmetric and asymmetric configurations of input voltage sources of the main and auxiliary stages. A scaled down prototype of the proposed hybrid three-phase hybrid MLI is developed to verify the control concept and the real time performance of the inverter.

UOW Authors


  •   Hasan, Md Mubashwar (external author)
  •   Abu-Siada, A (external author)
  •   Islam, Md Rabiul

Publication Date


  • 2017

Citation


  • M. Hasan, A. Abu-Siada & M. Islam, "Investigation of low switching frequency control of a three phase cascaded H-bridge multilevel inverter," in 2nd International Conference on Electrical, Computer & Telecommunication Engineering (ICECTE 2016), 2017, pp. 1-5.

Scopus Eid


  • 2-s2.0-85017301206

Start Page


  • 1

End Page


  • 5

Place Of Publication


  • United States

Abstract


  • This paper presents analysis of a three phase hybrid multilevel inverter (MLI) by applying low frequency stair case control strategy. The proposed MLI contains three cascaded stages, auxiliary stage-1, auxiliary stage-2, and main stage. The main stage contains three half-bridge cells which are connected in parallel with a common DC power supply. Each of the stages in the auxiliary stages consists of three H-bridge where the H-bridge cells contain isolated DC power supplies. The proposed hybrid MLI is tested for symmetric and asymmetric configurations of input voltage sources of the main and auxiliary stages. A scaled down prototype of the proposed hybrid three-phase hybrid MLI is developed to verify the control concept and the real time performance of the inverter.

UOW Authors


  •   Hasan, Md Mubashwar (external author)
  •   Abu-Siada, A (external author)
  •   Islam, Md Rabiul

Publication Date


  • 2017

Citation


  • M. Hasan, A. Abu-Siada & M. Islam, "Investigation of low switching frequency control of a three phase cascaded H-bridge multilevel inverter," in 2nd International Conference on Electrical, Computer & Telecommunication Engineering (ICECTE 2016), 2017, pp. 1-5.

Scopus Eid


  • 2-s2.0-85017301206

Start Page


  • 1

End Page


  • 5

Place Of Publication


  • United States