Optimum power transmission-based droop control design for multi-terminal HVDC of offshore wind farms

Ayman S. Abdel-Khalik, Ahmed M. Massoud, Ahmed A. Elserougi, Shehab Ahmed

Research output: Contribution to journalArticlepeer-review

105 Scopus citations

Abstract

Power generation through wind is expected to play a major role in the world's future energy portfolio. Nevertheless, wind power integration remains a challenging research area due to the special characteristics of wind power generation. Specifically, offshore wind has received significant attention worldwide due to the vast generation potential available. The electrical infrastructure of offshore wind farms is thus of significant importance. The multi-terminal HVDC solution represents a preferable solution and has shown promise in solving wind farm interconnection problems. Droop control techniques have been proposed as a means to regulate the DC voltage and facilitate the automatic coordination between different converters without the need for fast communication between units. Different methodologies have been developed to select the droop gains to satisfy the system performance specifications. In this work, a control design methodology is proposed for power sharing among the multi-terminal HVDC feeders providing that the power transmission efficiency is optimized. A simulation study on a 400-kV/1000-MW four-terminal HVDC transmission topology is conducted to ensure the validity of the proposed methodology. © 1969-2012 IEEE.
Original languageEnglish (US)
JournalIEEE Transactions on Power Systems
Volume28
Issue number3
DOIs
StatePublished - Feb 1 2013
Externally publishedYes

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