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Quantitative Feedback Theory design of line current commutated HVDC control systems.

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Date

2013

Journal Title

Journal ISSN

Volume Title

Publisher

SAIEE Publications.

Abstract

Line Current Commutated (LCC) HVDC systems consists of uncertain plants. These uncertainties are result of changes/disturbances in the ac networks or in the LCC HVDC system itself. Further uncertainties can be introduced due to simplified system modelling techniques. Quantitative Feedback Theory is a frequency-domain technique that utilises the Nichols chart to achieve a robust design over a specified region of uncertainty. The Quantitative Feedback Theory design philosophy was applied to design the LCC HVDC control system parameters. The stable start-up and step responses of the LCC HVDC system, for varying ac system conditions, conclusively validate the Quantitative Feedback Theory design method of the LCC HVDC control system parameters.

Description

Keywords

Quantitative feedback theory., Electric power systems., Electric power systems--Control., Robust control.

Citation

Chetty, L., Ijumba, N.M. 2013. Quantitative Feedback Theory design of line current commutated HVDC control systems. South African Institute of Electrical Engineers 104 (1) pp. 2-10.

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