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Performance evaluation of a sub-harmonic protection relay using practical waveforms

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5 Author(s)
N. Perera ; ER Phase Power Technologies, Winnipeg, Manitoba, Canada ; K. Narendra ; D. Fedirchuk ; R. Midence
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Sub-synchronous resonance is a phenomenon in which electrical energy is exchanged between generators and transmission systems below the nominal power frequency (50/60Hz). It can be caused due to many reasons such as interaction of a series compensated transmission line with a synchronous generator, interaction of a generator with a power electronic controller in HVDC transmission system, interaction of a series compensated transmission system and a power electronic control system in a Type 3 wind turbine generator, etc.. This paper evaluates the performance of a sub-harmonic protection relay using practical waveforms captured by the digital fault recorders during sub-synchronous resonance events generated due to the interaction of series compensated transmission lines with Type 3 wind turbines.

Published in:

Electrical Power and Energy Conference (EPEC), 2012 IEEE

Date of Conference:

10-12 Oct. 2012