A variable-speed constant-frequency self-excited induction generator
General Material Designation
[Thesis]
First Statement of Responsibility
Zahir, Bashir Ahmad
.PUBLICATION, DISTRIBUTION, ETC
Name of Publisher, Distributor, etc.
Loughborough University
Date of Publication, Distribution, etc.
2005
DISSERTATION (THESIS) NOTE
Dissertation or thesis details and type of degree
Thesis (Ph.D.)
Text preceding or following the note
2005
SUMMARY OR ABSTRACT
Text of Note
The thesis describes the design and development of a stand-alone variable-speed constant-frequency self-excited induction generator, using field-oriented control techniques to provide the necessary voltage and frequency control. Open- and closed-loop models are developed for the generator using tensor techniques and these are subsequently used in the control system design and simulation. For the closed-loop system, both conventional and field-oriented control strategies are developed. A laboratory-scale system was designed and built, to illustrate the system performance. The generator is driven by a separately-excited DC motor to simulate a variable-speed wind turbine and a 2.2kW wound rotor induction machine is used as the generator. The generator excitation current is provided by a current-controlled voltage-source inverter.