Ageing Mitigation Control Method for Power Devices in Multilevel Inverters in Standalone PV Systems

Mokhtar Aly, Emad M. Ahmed, Masahito Shoyama

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

抄録

Multilevel inverters (MIs) have become widely used in photovoltaic (PV) systems for their high efficiency, reduced leakage currents, and reduced EMI levels. Although MIs suffer from unequal thermal stresses in power devices that lead to aging of power device with their continuous operation. Therefore, this paper proposes a new aging mitigation control (AMC) method to enhance the reliability of MIs against the aging effects in power devices. The operation of the proposed AMC method has three operating modes that are adapted according to the level and type of aging. In small and medium aging levels, the proposed method preserves the full output power ratings of the inverter with maximum energy extraction from PV modules. Whereas, in high aging level region and multiple devices failures, the proposed method reduces the output power so as to maintain continuous operation of the inverter without harmful consequences. The simulation and experimental results with comparisons to conventional methods show effective performance of the proposed AMC method.

本文言語英語
ホスト出版物のタイトル2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018
出版社Institute of Electrical and Electronics Engineers Inc.
ページ5737-5741
ページ数5
ISBN(電子版)9781479973118
DOI
出版ステータス出版済み - 12 3 2018
イベント10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018 - Portland, 米国
継続期間: 9 23 20189 27 2018

出版物シリーズ

名前2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018

その他

その他10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018
国/地域米国
CityPortland
Period9/23/189/27/18

All Science Journal Classification (ASJC) codes

  • エネルギー工学および電力技術
  • 再生可能エネルギー、持続可能性、環境
  • 制御と最適化
  • コンピュータ ネットワークおよび通信
  • ハードウェアとアーキテクチャ
  • 情報システムおよび情報管理

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