This thesis describes a linear and direct method of analysing the interaction of waveform
distortion around an HVdc convertor. Existing analysis techniques are reviewed, and their …

This thesis describes a new steady state analysis of the HVdc convert. or. Previous work is
reviewed, and problems, vith accurate modelling of the convertor, and poor solution …

The interaction between an HVDC converter and the saturation characteristic of a converter
transformer can lead to a type of harmonic instability widely known as converter transformer …

This thesis investigates techniques for modelling the steady state harmonic and
interharmonic waveform distortion associated with HVDC links. Previous methods are …

Frequency domain models for power electronic circuits are either based on iterative
techniques such as Newton's method or linearised around an operating point. Iterative …

A linear and direct method of determining the major components of noncharacteristic
waveform distortion at the terminals of an HVDC convertor is presented. The method is a …

The paper describes a computational method for finding the harmonics in large convertor
systems, with particular reference to the interdependent effects of convertors, transformers …

In the practical design of hvdc convertor installations, a thorough investigation should be
made of all the possible component-overstressing situations that may arise for a variety of …

A modulating signal (MS) applied to the control voltage has a profound effect on the DC and
AC-side uncharacteristic harmonic currents. The presence of harmonic distortion in the AC …

A small-signal analytic frequency domain model of a 6-pulse HVDC converter is presented.
The model consists of a set of explicit algebraic equations which relate the transfer of …