Thesis-1983-Kok.pdf (6.8 MB)
Frequency converter current-compounding excitation systems
thesis
posted on 2014-02-10, 15:23 authored by Tiong Chee KokStatic current-compounding excitation schemes that provide an
isolated synchronous generator with a field current that
increases both with increasing load and with worsening power
factor have been in existence for many years. Such schemes,
while capable of maintaining the on-load terminal voltage
substantially constant, require brushes to carry the
excitation current to the generator field winding and in some
practical applications these brushes may present serious
maintenance problems. In a recent development, a new
brushless frequency-converter type of excitation system was
introduced. This system, while using only passive components,
can furnish a loaded synchronous generator with a compounded
excitation current such that its terminal voltage is
maintained to within a reasonably close tolerance,
irrespective of the load power factor. The central unit of
the system is a special purpose exciter, the rather
unconventional stator windings of which make the concept of
an automatically-regulated and brushless generator a
practical reality.... cont'd
History
School
- Mechanical, Electrical and Manufacturing Engineering
Publisher
© Tiong Chee KokPublication date
1983Notes
A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy of Loughborough University.EThOS Persistent ID
uk.bl.ethos.345811Language
- en