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Paper Information

Title: 

A NEW ALGORITHM BASED ON RECURSIVE LEAST ERROR SQUARES APPROACH IN DIFFERENTIAL PROTECTION OF TRANSFORMER

Type: PAPER
Author(s): HESSAMI NAGHSHBANDY LI,JAMALI SADEGH,KAZEMI AHAD
 
 
 
Name of Seminar: INTERNATIONAL POWER SYSTEM CONFRENCE
Type of Seminar:  CONFERENCE
Sponsor:  SHERKATE TAVANIR
Date:  2004Volume 19
 
 
Abstract: 

IN THIS PAPER, A NEW RECURSIVE ALGORITHM SUITABLE FOR DIGITAL RELAYING APPLICATIONS IS INTRODUCED. THE PROPOSED ALGORITHM IS DESIGNED USING THE LEAST ERROR SQUARE APPROACH BASED ON A RECURSIVE STRUCTURE. FOR DEVELOPMENT OF THE ALGORITHM, MATHEMATICAL EQUATIONS OF NONRECURSIVE FORM ARE MODIFIED AND AFTER SOME MATHEMATICAL OPERATIONS, THE RECURSIVE FORM OF THE FILTER IS OBTAINED. ALSO, A METHOD FOR INCLUDING DECAYING DC COMPONENT AND HARMONIC FREQUENCIES IN TO THE ALGORITHM IS DESCRIBED. FINALLY, SAMPLE STUDIES ARE PRESENTED TO DEMONSTRATE THE PERFORMANCE OF THE DEVELOPED ALGORITHM AGAINST INRUSH CURRENT AND FAULT CONDITION OF TRANSFORMER.

 
Keyword(s): DIGITAL PROTECTION, RECURSIVE LEAST SQUARE ALGORITHM, DIFFERENTIAL PROTECTION, TRANNSFORMER
 
 
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