Hybrid Cascaded Multilevel Inverter (HCMLI) with Improved Symmetrical 4-Level Submodule

Sze Sing Lee; Michail Sidorov; Chee Shen Lim; Nik Rumzi Nik Idris; Yeh En Heng

doi:10.1109/TPEL.2017.2726087

Hybrid Cascaded Multilevel Inverter (HCMLI) with Improved Symmetrical 4-Level Submodule

Sze Sing Lee^*, Michail Sidorov, Chee Shen Lim, Nik Rumzi Nik Idris, Yeh En Heng

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

116 Citations (Scopus)

Abstract

This letter proposes an improved symmetrical 4-level submodule as a basic cell for generating multiple dc voltage levels. A hybrid cascaded multilevel inverter (HCMLI) topology is formed by the combination of n submodules and a full-bridge. A comparative analysis against the recent multilevel inverters reveals that the proposed topology requires less number of switches and dc sources. In addition, the proposed submodule reduces the number of conducting switch and gate driver requirements compared to the widely used half-bridge submodule. To validate the operation of the proposed HCMLI topology, experimental results of a 9-level single-phase inverter controlled by selective harmonic elimination pulse-width-modulation is presented.

Original language	English
Article number	7976310
Pages (from-to)	932-935
Number of pages	4
Journal	IEEE Transactions on Power Electronics
Volume	33
Issue number	2
DOIs	https://doi.org/10.1109/TPEL.2017.2726087
Publication status	Published - Feb 2018
Externally published	Yes

Keywords

Hybrid cascaded multilevel inverter (HCMLI)
reduced switch count
symmetrical submodule

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10.1109/TPEL.2017.2726087

Cite this

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title = "Hybrid Cascaded Multilevel Inverter (HCMLI) with Improved Symmetrical 4-Level Submodule",

abstract = "This letter proposes an improved symmetrical 4-level submodule as a basic cell for generating multiple dc voltage levels. A hybrid cascaded multilevel inverter (HCMLI) topology is formed by the combination of n submodules and a full-bridge. A comparative analysis against the recent multilevel inverters reveals that the proposed topology requires less number of switches and dc sources. In addition, the proposed submodule reduces the number of conducting switch and gate driver requirements compared to the widely used half-bridge submodule. To validate the operation of the proposed HCMLI topology, experimental results of a 9-level single-phase inverter controlled by selective harmonic elimination pulse-width-modulation is presented.",

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AU - Heng, Yeh En

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AB - This letter proposes an improved symmetrical 4-level submodule as a basic cell for generating multiple dc voltage levels. A hybrid cascaded multilevel inverter (HCMLI) topology is formed by the combination of n submodules and a full-bridge. A comparative analysis against the recent multilevel inverters reveals that the proposed topology requires less number of switches and dc sources. In addition, the proposed submodule reduces the number of conducting switch and gate driver requirements compared to the widely used half-bridge submodule. To validate the operation of the proposed HCMLI topology, experimental results of a 9-level single-phase inverter controlled by selective harmonic elimination pulse-width-modulation is presented.

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Hybrid Cascaded Multilevel Inverter (HCMLI) with Improved Symmetrical 4-Level Submodule

Abstract

Keywords

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