Lifetime-oriented SVPWM for thermally-overloaded power devices in three-level inverters

Mokhtar Aly, Gamal M. Dousoky, Masahito Shoyama

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

1 被引用数 (Scopus)

抄録

Boosting lifetime of power components in multilevel inverters is a major aim to enhance the total system reliability and performance. This paper presents a space vector pulse width modulation (SVPWM) strategy for lifetime prolongation of thermally-overloaded power devices in multilevel inverters. When a thermal overloading is detected in one of the power devices, the proposed algorithm is applied to relieve the overloaded device and therefore preventing dangerous circumstances such as open-or short-circuit faults. The proposed methodology relies on using the redundancy property between the switching states in multilevel inverters to continuously evaluate the junction temperature of the thermally-overloaded power devices for all the possible switching sequences, then it identifies the optimal relieving switching sequence. The proposed methodology is valid for both/either of the power switching devices and/or DC-link capacitors. The proposed strategy is simple, and does not require any additional hardware. Furthermore, it does not deteriorate the output power. Accordingly, lifetime and reliability of multilevel inverters have been enhanced considerably. The proposed methodology has been designed and validated by simulation and experimental prototyping of a three-level T-type inverter system to investigate its feasibility and effectiveness.

本文言語英語
ホスト出版物のタイトルIECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society
出版社Institute of Electrical and Electronics Engineers Inc.
ページ3614-3619
ページ数6
ISBN(電子版)9781479917624
DOI
出版ステータス出版済み - 2015
イベント41st Annual Conference of the IEEE Industrial Electronics Society, IECON 2015 - Yokohama, 日本
継続期間: 11 9 201511 12 2015

出版物シリーズ

名前IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society

その他

その他41st Annual Conference of the IEEE Industrial Electronics Society, IECON 2015
Country日本
CityYokohama
Period11/9/1511/12/15

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Industrial and Manufacturing Engineering

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