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Pole shift control based adaptive power system stabilizer for a superconducting generator

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Advisor
Malik, Dr. O.P
Author
Vincent De Paul, Felix
Accessioned
2013-04-23T17:52:19Z
Available
2013-06-15T07:01:50Z
Issued
2013-04-23
Submitted
2013
Subject
Engineering--Electronics and Electrical
Type
Thesis
Metadata
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Abstract
Over the past few decades, an international effort has been undertaken to develop electric generators using rotors with super-conducting windings. The main differences between superconducting generators (SCGs) and the conventional generators are that (i) the SCG has a double rotor screen and (ii) the SCG’s field windings on the rotor are made up of super-conductors that have zero resistance at cryogenic temperature and, therefore, completely eliminate resistive losses from the rotor. In order to enhance power system stability, a conventional power system stabilizer (CPSS) is commonly applied to the conventional generator excitation system to damp oscillations. In an SCG, due to the long field time-constant and the shielding effect of the double rotor screen, it is not effective to control through the generator excitation system. A possibility, considered here, is to control the SCG through an electro-hydraulic governor as its time-constant is much less than that of the field winding. The objective of this research is to test the performance of an adaptive power system stabilizer for a SCG based on the pole-shift linear feedback control algorithm and acting through the SCG electro-hydraulic governor. The system considered is a single SCG – infinite-bus power system driven by a three stage turbine that includes a re-heater. The turbine is controlled by an electro-hydraulic governor. A third order autoregressive moving average (ARMA) model is used to represent the plant that can be controlled by an adaptive pole-shift controller through the electro-hydraulic governor
Corporate
University of Calgary
Faculty
Graduate Studies
Doi
http://dx.doi.org/10.5072/PRISM/27378
Uri
http://hdl.handle.net/11023/614
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