An expert system for wide area protection system protection zone selection

Sheng Su, K. K. Li, Wai Lok Chan, Xiangjun Zeng, Xianzhong Duan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

17 Citations (Scopus)


With the development and application of IT and communication in power system, numerical current differential protection system has been developed, which facilitate the wide area current differential protection system. An expert system is proposed to select primary and backup protection zone online with system configuration information available from SCADA system, the protection units of the same protection zone communicate with each other and the protected units can thus be protected with current differential protection. Knowledge representation and search strategy has been proposed and the expert system has been applied to select primary and backup protection zone for two cases of system configuration.
Original languageEnglish
JournalPower System Technology
Issue number3
Publication statusPublished - 5 Feb 2005


  • Current differential protection
  • Expert systems
  • Protective relaying
  • Wide area protection system

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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