i-manager Publications

A Mean Based Estimation Technique with out of Step Blocking

Ch. Durga Prasad*, N. Srinivasu**

* M.E Student, Department of EEE, S.R.K.R. Engineering College, Bhimavaram, India.

** Professor, S.R.K.R. Engineering College, Bhimavaram, India.

Periodicity:March - May'2015
DOI : https://doi.org/10.26634/jcir.3.2.3412

Abstract

This paper proposes a new method based on estimation of an error by approximating the given curve into a straight line. The given curve is approximated with set of straight lines in which each straight line consists three points. In these three points, the middle point value is the arithmetic mean of first and last points. In a regular curve, the deviation between estimated point and actual point is small whereas in an irregular curve the error is large. In this paper, instantaneous current signal is taken as input and current phasor is estimated using Discrete Fourier Transform Technique. In general, many conventional methods failed during power swing due to the variations in current and voltage but the proposed method effectively detects the faults as well as power swing. Simulations are carried out in MATLAB/SIMULINK.

Keywords

Power Systems, Power Swing, Out Of Step Blocking, Error Estimation

How to Cite this Article?

Prasad, Ch, D. and Srinivasu, N. (2015). A Mean Based Estimation Technique With Out of Step Blocking. i-manager’s Journal on Circuits and Systems, 3(2), 26-28. https://doi.org/10.26634/jcir.3.2.3412

References

[1]. I.J.Nagrath, Kothari, (2003). “Power System Analysis”, 4th edition Tata-McGraw hill.

[2]. D. Tziouvaras and D. Hou, (2003). “Out-of-step protection fundamentals and advancements,” presented at the 30th Annu. Western Protective Relay Conf., Spokane, WA, Oct. pp.21–23.

[3]. L. Wang, A. Girgis, (1997). “A new method for power system transient instability detection,” IEEE Trans. Power Del., Vol. 12, No. 3, pp.1082–1089.

[4]. S. M. Brahma, (2007). “Distance relay with out-of-step blocking function using wavelet transform,” IEEE Trans. Power Del., Vol. 22, No. 3, pp. 1360–1366.

[5]. S. Lotfifard, J. Faiz, and M. Kezunovic, (2010). “Detection of symmetrical faults by distance relays during power swings,” IEEE Trans. Power Del., Vol. 25, No. 1, pp. 81–87.

[6]. H. K. Zadeh and Z. Li, (2008). “A novel power swing blocking scheme using adaptive neuro-fuzzy inference system,” Electric Power Syst. Res., Vol. 78, pp. 1138–1146.

[7]. C. Pang and M. Kezunovic, (2010). “Fast distance relay scheme for detecting symmetrical fault during power swing,” IEEE Trans. Power Del., Vol. 25, No. 4, pp. 2205–2212.

[8]. X. Lin, Y. Gao, and P. Liu, (2008). “A novel scheme to identify symmetrical faults occurring during power swings,” IEEE Trans. Power Del., Vol. 23, No. 1, pp. 73–78.

	North Americas,UK, Middle East,Europe		India	Rest of world
	USD	EUR	INR	USD-ROW
Pdf	35	35	200	20
Online	35	35	200	15
Pdf & Online	35	35	400	25

A Mean Based Estimation Technique with out of Step Blocking

Abstract

Keywords

How to Cite this Article?

References

If you have access to this article please login to view the article or kindly login to purchase the article

Purchase Instant Access

Options for accessing this content: