Journal of Electrical Engineering and Technology

The Korean Institute of Electrical Engineers (대한전기학회)
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A Study on Adaptive Autoreclosure Scheme with Real-time Transient Stability

  • Jang Sung-Ik (The School of Electrical & Computer Engineering, Sungkyunkwan University) ;
  • Shin Myong-Chul (The School of Electrical & Computer Engineering, Sungkyunkwan University) ;
  • Yoon Chang-Dae (The School of Electrical & Computer Engineering, Sungkyunkwan University) ;
  • Campbell Ryan C. (The School of Electrical & Computer Engineering, Sungkyunkwan University)
  • Published : 2006.03.01
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Abstract

Since the power swing depends on the operating time of the relay, the swing's magnitude can be reduced by an autoreclosure relaying system with an optimal reclosing algorithm. This paper proposes a method for stability improvement using optimal reclosure relaying. An optimal reclosure algorithm is applied to identify both temporary and permanent faults, and to predict system stability by applying WAM and high speed communication technology. It provides optimal control by predicting and determining the degree of stability, considering the real time transient stability using EEEAC. For temporary faults, the algorithm determines the system's stability and either recloses optimally for stable systems, or inserts series capacitance before optimal reclosure for unstable systems. It also applies an optimal reclosure algorithm to minimize shock and damage to the power system when reclosure fails due to permanent faults.

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References

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