Journal
IEEE TRANSACTIONS ON POWER SYSTEMS
Volume 28, Issue 1, Pages 357-366Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPWRS.2012.2196450
Keywords
Electrical distance; electromagnetic transient; error index; frequency dependent network equivalent; transient stability analysis
Categories
Funding
- Chinese Scholarship Council (CSC)
- IRC Program of the Natural Sciences and Engineering Council (NSERC) of Canada
- National High Technology Research Program [2011AA05A118]
- New Century Excellent Talents in University [NCET-11-0281]
- National Science Fund for Distinguished Young Scholars of China [51025725]
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This paper considers the use of hybrid simulation combining electromagnetic transients (EMT) simulation and transient stability (TSA) simulation to model large networks. By comparing with a full detailed EMT simulation, the paper shows that the hybrid approach gives more accurate results than TSA simulation alone, when power electronic equipment is included in the EMT part of the model. The paper also considers line switching and faults in the TSA part of the model which were ignored in earlier approaches, and shows that the accuracy is a function of the electrical distance of the fault to the interface bus bars. A new method to improve this accuracy with the use of switchable frequency dependent network equivalents (FDNE) is also introduced.
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