Title :
Small signal frequency domain model of an HVDC converter
Author :
Osauskas, C.M. ; Hume, D.J. ; Wood, A.R.
Author_Institution :
Dept. of Electr. & Electron. Eng., Canterbury Univ., Christchurch, New Zealand
fDate :
11/1/2001 12:00:00 AM
Abstract :
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 distortion from AC voltage, DC current and firing angle modulation, to AC current and DC voltage. The equations represent the linearisation of the transfers around a base operating point, and are derived from a piecewise linear description of the AC current and DC voltage waveforms. The model provides an understanding of the transfer of distortion by the converter and is in excellent agreement with time domain simulations
Keywords :
HVDC power convertors; frequency-domain analysis; piecewise linear techniques; time-domain analysis; 6-pulse HVDC converter; AC current; AC voltage distortion; DC current distortion; DC voltage; base operating point; distortion transfer; explicit algebraic equations; firing angle modulation; piecewise linear description; small signal frequency domain model; time domain simulations;
Journal_Title :
Generation, Transmission and Distribution, IEE Proceedings-
DOI :
10.1049/ip-gtd:20010533
