Harmonic State-Space modelling of an HVdc converter

This paper presents a Harmonic State-Space (HSS) model of a fixed delay angle six-pulse High Voltage Direct Current (HVdc) converter. Under the HSS modelling framework, the non-linear switching of the converter thyristors is linearised using a small-signal modelling technique, and described by Frequ...

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Bibliographic Details
Main Authors: Hwang, M. S., Wood, A. R.
Format: Conference Proceeding
Language:English
Subjects:
Equations
Frequency conversion
frequency transfer matrix
Harmonic analysis
harmonic state-space
HVdc
linear time periodic
Mathematical model
Switches
Thyristors
Time frequency analysis
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Summary:This paper presents a Harmonic State-Space (HSS) model of a fixed delay angle six-pulse High Voltage Direct Current (HVdc) converter. Under the HSS modelling framework, the non-linear switching of the converter thyristors is linearised using a small-signal modelling technique, and described by Frequency Transfer Matrices (FTM). The HSS is an extension to the Harmonic Domain (HD); it captures signal dynamics both in the steady-state and the transient state by the use of the Exponentially Modulated Periodic (EMP) signals. The FTM represents the switching of the thyristors and couple different frequencies around the converter. The modelling results are validated against a time-domain simulation by the PSCAD/EMTDC software package.
ISSN:1540-6008
2164-0610
DOI:10.1109/ICHQP.2012.6381184