Localized Measurement-Based Non-Unit Protection Scheme for Flexible DC Microgrid

Chetan Srivastava, Manoj Tripathy, Li Wang

研究成果: Conference contribution

摘要

The dc microgrid offers an efficient platform for integrating diverse distributed generators and renewable sources. Accurate and fast fault identification is critically required to avert the adverse effect of high fault current due to low impedance dc cables. Overcurrent-based schemes can't offer the desired selectivity. However, the differential methods deliver high selectivity, but the time synchronization delay and communication failure make such schemes vulnerable. This work utilizes the voltage and its derivative across the reactance connected at line ends to implement the protection scheme. The proposed method exploits localized measurements and don't require complex communication infrastructure. The suggested scheme is sensitive to faults with high impedance and delivers high selectivity with prompt fault isolation in a stipulated time frame. The scheme's performance is estimated using data from the mesh-type flexible dc microgrid structure established on PSCAD/EMTDC platform under various operating scenarios.

原文English
主出版物標題2023 IEEE International Conference on Energy Technologies for Future Grids, ETFG 2023
發行者Institute of Electrical and Electronics Engineers Inc.
ISBN(電子)9781665471640
DOIs
出版狀態Published - 2023
事件2023 IEEE International Conference on Energy Technologies for Future Grids, ETFG 2023 - Wollongong, Australia
持續時間: 2023 12月 32023 12月 6

出版系列

名字2023 IEEE International Conference on Energy Technologies for Future Grids, ETFG 2023

Conference

Conference2023 IEEE International Conference on Energy Technologies for Future Grids, ETFG 2023
國家/地區Australia
城市Wollongong
期間23-12-0323-12-06

All Science Journal Classification (ASJC) codes

  • 人工智慧
  • 能源工程與電力技術
  • 可再生能源、永續發展與環境
  • 電氣與電子工程
  • 控制和優化
  • 安全、風險、可靠性和品質

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