Determination of high power synchronous generator subtransient reactances based on the waveforms for a steady state two-phase short-circuit

作者:

Highlights:

• The field-circuit model of the synchronous generator was presented.

• This model was used to calculate the waveforms for a two-phase short-circuit.

• The short-circuit waveforms in the steady state were also derived analytically.

• The FFT analysis was used for calculating generator subtransient parameters.

• These subtransient parameters were also determined using the optimization algorithm.

摘要

•The field-circuit model of the synchronous generator was presented.•This model was used to calculate the waveforms for a two-phase short-circuit.•The short-circuit waveforms in the steady state were also derived analytically.•The FFT analysis was used for calculating generator subtransient parameters.•These subtransient parameters were also determined using the optimization algorithm.

论文关键词:Synchronous generator,Line-to-line short circuit,2D field-circuit model,Fast Fourier transform (FFT),Least-squares method,Gradient algorithm

论文评审过程:Received 29 September 2016, Revised 5 May 2017, Accepted 1 June 2017, Available online 20 June 2017, Version of Record 31 October 2017.

论文官网地址:https://doi.org/10.1016/j.amc.2017.06.003