Masters Theses


Integration of ultra-capacitors in static compensators

Keywords and Phrases

Ultracapacitors; Battery energy storage systems (BESS); Superconducting magnetic energy storage (SMES); Static synchronous compensator (STATCOM)


"Flexible alternating current transmission systems (FACTS) devices are sued for the dynamic control of voltage, impedance and phase angle of high voltage AC lines. The STATCOM is one of the most popular FACTS devices. Integration of storage devices such as batteries, SMES, or ultra-capacitors with a STATCOM can provide active power compensation besides the reactive power compensation to the system. Ultra-capacitors (UCAPS) have a much higher energy storage capacity than regular capacitors. They are also capable of delivering high bursts of power and can rapidly recharge from the transmission system. A STATCOM with an ultra-capacitor can provide extended power availability during voltage sags with momentary interruptions. The dynamic response of STATCOM/UCAP will be shown to be similar to the STATCOM/BESS. Furthermore STATCOM/UCAP will be shown to be effective in damping power oscillations and voltage control will be analyzed during a fault on the system. This thesis will also discuss the integration of ultra-capacitors to diode-clamped multilevel converters"--Abstract, leaf iii.


Electrical and Computer Engineering

Degree Name

M.S. in Electrical Engineering


University of Missouri--Rolla

Publication Date

Fall 2005


ix, 74 leaves

Note about bibliography

Includes bibliographical references (pages 53-55).


© 2005 Abhishek Singh, All rights reserved.

Document Type

Thesis - Citation

File Type




Library of Congress Subject Headings

Electric power distribution
Superconducting magnets
Pulse-duration modulation

Thesis Number

T 8901

Print OCLC #


Link to Catalog Record

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