Electronic Theses and Dissertations

Identifier

1358

Date

2015

Date of Award

4-29-2015

Document Type

Thesis

Degree Name

Master of Science

Major

Electrical and Computer Engr

Concentration

Electrical Engineering

Committee Chair

MOHD HASAN ALI

Committee Member

Russell Jerry Deaton

Committee Member

Thomas E Wyatt

Abstract

As the penetration of the fuel cell power system continues to increase, it is required to keep them connected during grid faults and contribute to system stability after fault clearance. Improving the Low Voltage Ride Through (LVRT) is required to enhance system stability during the grid fault and voltage sag. To meet the national grid operational requirements, the fuel cell Distributed Generation (DG) must be connected to the grid through some control devices to maintain the transient stability of the grid during the fault. In this work, the Series Dynamic Braking Resistor (SDBR) methodology is proposed to enhance the low voltage ride through capability of the fuel cell during any fault in the power network. The SDBR is connected at the grid side. Simulations have been performed by using the MATLAB/Simulink software. The simulation result shows that the SDBR is capable of improving the grid voltage and minimizing the active power drop, which can keep the fuel cell connected to the grid during the fault condition and meet the grid code requirement.

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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