Conducted emissions from FACTS equipment operational within substations - part 2

M.G. Stewart, W.H. Siew, Q. Li, K. Walker, C. Piner

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


Electromagnetic interference (EMI) may be caused by the fast switching of thyristors and gate turn-off thyristors (GTOs), which are used in static var compensators (SVCs) and static synchronous compensators (STATCOMs) to control reactive power generation and absorption to and from the transmission
system. As a result, high levels of electrical disturbance may be coupled into the electrical ports of auxiliary electronic equipment, and if the levels are above the immunity level of the equipment, maloperation that may lead to a trip can occur. This study sought to measure typical conducted EMI levels in four selected SVC-based and one static synchronous compensator (STATCOM)-based substation. The results and their correlation to the existing IEC 61000-4 EMC Standards series are discussed, and indications of changes to the immunity tests are presented.
Original languageEnglish
Pages (from-to)1782-1787
Number of pages6
JournalIEEE Transactions on Power Delivery
Issue number2
Publication statusPublished - Apr 2005


  • electromagnetic-compatibility (EMC) measurement,
  • electromagnetic immunity,
  • conducted emissions
  • static synchronous compensator (STATCOM)
  • static var compensator (SVC)


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