Skip to main content

A Mean Based Estimation Technique with out of Step Blocking


Volume 3 Issue 2 March - May 2015
Research Paper
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.
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
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.

Comments

Post a Comment

Popular posts from this blog

An improved Multilevel Inverter with Lesser Number of Switches for An Induction Motor Drive

Volume 2 Issue 1 December - February 2014 Research Paper An improved Multilevel Inverter with Lesser Number of Switches for An Induction Motor Drive Ayyappa Srinivasan M G*, Nirmal Singh** *Assistant Professor, Department of Electrical and Electronics Engineering, St.Mother Theresa Engineering College, Tuticorin, India. **Professor, Department of Electronics and Communication Engineering, V.V. College of Engineering, Tisayanvilai, India Srinivasan, A.M.G and Singh, N. N (2014). An Improved Multilevel Inverter With Lesser Number of Switches for an Induction Motor Drive.  i-manager’s Journal on Circuits and Systems , 2(1), 7-14.  https://doi.org/10.26634/jcir.2.1.2783 Abstract An improved three level inverter scheme, with less number of switches, having the features of common mode voltage elimination, DC link capacitor voltage balancing, and minimization and equalization of voltage stress across the switches, for an open end winding induction motor drive, h...
Post a Comment
Read more

Reduced Wirelength-Based Low Power Performance of Multibit Flip-Flop

Volume 1 Issue 4 September - November 2013 Research Paper Reduced Wirelength-Based Low Power Performance of Multibit Flip-Flop M.Karthick*, S. Vijayakumar** *PG Scholar, Department of Electronics and Communication Engineering, Paavai Engineering College, Namakkal, India. **Associate Professor, Department of Electronics and Communication Engineering, Paavai Engineering College, Namakkal, India. Karthick, M. and Vijayakumar, S. (2013). Reduced Wire length-Based Low Power Performance Of Multibit Flip-Flop.  i-manager’s Journal on Circuits and Systems , 1(4), 22-26.  https://doi.org/10.26634/jcir.1.4.2593 Abstract Power reduction is a main parameter to design VLSI circuits. In this paper, to design a number of D-flip flop performing at the same time, the given clock signal is reduced using multi bit flip-flop. The multi bit flip flop is mainly used to improve the clock power for the given common clock signal and to reduce the switching power. This method is p...
Post a Comment
Read more

Fuzzy Logiccontrol Of Differential Protection For Large Power Transformer

Volume 1 Issue 1 December - February 2013 Research Paper Fuzzy Logiccontrol Of Differential Protection For Large Power Transformer S.Padmini*, Subransu Sekhar Dash**, S. Chandrasekhar***, Priyanka Vedula**** * Assistant Professor, SRM University. ** Professor and Head, Department of EEE, SRM University, Shruti. ***-**** B. Tech Student, SRM University. Padmini, S., Dash, S. S., Chandrasekhar, S. and Vedula, P. (2013). Fuzzy Logiccontrol Of Differential Protection For Large Power Transformer.  i-manager’s Journal on Circuits and Systems , 1(1), 10-15.  https://doi.org/10.26634/jcir.1.1.2194 Abstract Advances Differential prot ecti on system is us e d t o protect most of the power transformers in power systems. The protection system is based on the differential currents/voltages of the primary an d secondary of the transformers under fault conditions and under normal operating conditions. The inrus currents or the magnetizing currents are generated in the...
Post a Comment
Read more