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Y. B. Zhao and Y. P. Lu, “An Asynchronous Method Based Saturation Criterion for CT in Busbar Protection,” Power System Technology, Vol. 30, No. 6, 2006, pp. 6-90.

has been cited by the following article:

• TITLE: Busbar Differential Relaying Method Based on Combined Amplitude and Phase Information of High Frequency Transient Currents

  AUTHORS: Xiao Wu, Zhengyou He, Xiaopeng Li

  KEYWORDS: Busbar Protection; High Frequency Transient Currents; Complex Wavelet Analysis; Polar Coordinate

  JOURNAL NAME: Energy and Power Engineering, Vol.5 No.4B, November 18, 2013

  ABSTRACT: Busbar differential relaying method based on combined amplitude and phase information of high frequency transient currents is put forward in this paper for the speed and reliability problems of busbar protection based on fundamental frequency. Under the analysis of features of bus high frequency differential currents, complex wavelet analysis is used to extract the amplitude and phase features of 1/4 period high frequency differential currents, and amplitude and phase information are used to form the polar coordinates. Bus fault is identified intuitively and precisely according to polar locus differences. This polar coordinates represented busbar differential protection scheme based on high frequency transient signals can not only avoid TA saturation, realizing quick protection, lots of PSCAD/EMTDC simulations also show that this busbar differential protection scheme works well under different fault conditions.