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中南大学学报(英文版)

Journal of Central South University

Vol. 20    No. 4    April 2013

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Power swing and voltage collapse identification schemes for correct distance, relay operation in power system
Ahmad F. Abidin, Azah Mohamed, Hussain Shareef

Department of Electrical, Electronic and Systems Engineering
Universiti Kebangsaan Malaysia, Bangi 43600, Malaysia

Abstract:The new techniques were presented for preventing undesirable distance relay maloperation during voltage collapse and power swings in transmission grids. Initially, the work focused on the development of a fast detection of voltage collapse and a three-phase fault at transmission lines by using under impedance fault detector (UIFD) and support vector machine (SVM). Likewise, an intelligent approach was developed to discriminate a fault, stable swing and unstable swing, for correct distance relay operation by using the S-transform and the probabilistic neural network (PNN). To illustrate the effectiveness of the proposed techniques, simulations were carried out on the IEEE 39-bus test system using the PSS/E and MATLAB software.

 

Key words: under impedance fault detector; distance relay; fault; voltage collapse

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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