The Method of Fault Position for Assessment of Voltage Sags in Distribution Systems

This paper focuses on the method of fault position for stochastic prediction of balanced and unbalanced voltage sags in a distribution system. The theoretical background about the short circuit analysis is presented and residual phase voltage equations for balanced and unbalanced fault are derived. Thereafter area of vulnerability based on the assessment of voltage sags have been presented for an Indian distribution system.

[1]  A. R. Dettloff,et al.  Power quality performance component of the special manufacturing contracts between power provider and customer , 2000, Ninth International Conference on Harmonics and Quality of Power. Proceedings (Cat. No.00EX441).

[2]  Math Bollen,et al.  Understanding Power Quality Problems: Voltage Sags and Interruptions , 1999 .

[3]  Math Bollen,et al.  Stochastic assessment of unbalanced voltage dips in large transmission systems , 2003, 2003 IEEE Bologna Power Tech Conference Proceedings,.

[4]  William Kersting,et al.  Distribution System Modeling and Analysis , 2001, Electric Power Generation, Transmission, and Distribution: The Electric Power Engineering Handbook.

[5]  J.V. Milanovic,et al.  Propagation of asymmetrical sags and the influence of boundary crossing lines on voltage sag prediction , 2004, IEEE Transactions on Power Delivery.

[6]  Math Bollen,et al.  Stochastic prediction of voltage sags in a large transmission system , 1998, 1998 IEEE Industrial and Commercial Power Systems Technical Conference. Conference Record. Papers Presented at the 1998 Annual Meeting (Cat. No.98CH36202).

[7]  Gabriel Olguin,et al.  Voltage Dip (Sag) Estimation in Power Systems based on Stochastic Assessment and Optimal Monitoring , 2005 .

[8]  Enrico Tironi,et al.  Power quality costs and upgrading solutions: the energy centre , 2000, Ninth International Conference on Harmonics and Quality of Power. Proceedings (Cat. No.00EX441).

[9]  G. G. Stokes.  "J." , 1890, The New Yale Book of Quotations.

[10]  Math Bollen,et al.  Understanding Power Quality Problems , 1999 .

[11]  Math H. J. Bollen.  st Assessment Methods for Voltage s in Distribution Systems , 1996 .