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Paper Information

Title: 

DISCUSSION HARMONIC OPERATION OF HVDC LINK IN UNBALANCED NETWORKS

Type: PAPER
Author(s): HOSSIENI S.H.,SAJADI A.
 
 
 
Name of Seminar: INTERNATIONAL POWER SYSTEM CONFRENCE
Type of Seminar:  CONFERENCE
Sponsor:  SHERKATE TAVANIR
Date:  2004Volume 19
 
 
Abstract: 

RECENT TECHNOLOGY ADVANCES HAVE MADE HVDC TRANSMISSION AN ECONOMICALLY ATTRACTIVE ALTERNATIVE FOR POWER TRANSMISSION OVER LONG DISTANCES. THE AC TO DC AND DC TO AC CONVERSION PROCESSES IN THE HVDC TRANSMISSION GENERATE HARMONICS THAT MAY CAUSE VARIOUS PROBLEMS IN A POWER SYSTEM RANGING FROM CAPACITOR FAILURE TO CONTROL CIRCUIT MALFUNCTION.
WITH UNBALANCED CONDITIONS, THE GENERATION AND PROPAGATION OF HARMONICS ARE MORE COMPLICATED. FOR EXAMPLE, EXTRA SO CALLED NON CHARACTERISTIC HARMONICS MAY BE PRODUCED THESE HARMONICS MAY CAUSE HARMONIC INSTABILITY.
THUS HARMONIC STUDIES ABOUT HVDC TRANSMISSION IS ESSENTIAL BECAUSE THAT IS USED EXTENSIVELY IN POWER NETWORKS. IN THIS PAPER, FIRSTLY HARMONIC OPERATION OF HVDC CONVERTERS WAS ANALYSED IN UNBALANCED CONDITIONS. FINALLY, THREE PHASE HARMONIC LOAD FLOW WAS DONE IN A NETWORK INCLUDING HVDC LINK.

 
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