Electronic Theses and Dissertations

Identifier

834

Author

Sagnika Ghosh

Date

2013

Date of Award

4-23-2013

Document Type

Thesis

Degree Name

Master of Science

Major

Electrical and Computer Engr

Concentration

Electrical Engineering

Committee Chair

Mohd. Hasan Ali

Committee Member

Thomas Edgar Wyatt

Committee Member

Russell Jerry Deaton

Abstract

This thesis aims at enhancing the power quality through an optimal reclosing technique of circuit breakers and power electronics-based controls. A performance comparison among the total kinetic energy based reclosing method, the variable dead time control method, and the total load angle method which is a novel technique proposed in this work, are considered. Simulation results indicate the superiority of the total kinetic energy based reclosing method. The effectiveness of the combined operation of total kinetic energy based optimal reclosing and thyristor controller capacitor is evaluated by considering three indices, namely, voltage index, speed index, and the total harmonic distortion (THD) in case of faults and sudden injection of a large load. Simulation results indicate the effectiveness of the combined operation of the total kinetic energy based reclosing technique and the thyristor-based capacitor. Moreover, the performance of the thyristor-based capacitor is better than that of the thyristor-based resistor or reactor.

Comments

Data is provided by the student.

Library Comment

dissertation or thesis originally submitted to the local University of Memphis Electronic Theses & dissertation (ETD) Repository.

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