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Current matching control system for multi-terminal DC transmission to integrate offshore wind farms

Zhu, Jiebei and Booth, Campbell and Adam, Grain Philip (2012) Current matching control system for multi-terminal DC transmission to integrate offshore wind farms. In: IET Conference on Renewable Power Generation (RPG 2011), 2011-09-06 - 2011-09-08, Edinburgh.

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Abstract

The inherent features of Voltage Source Converters (VSCs) are attractive for practical implementation of Multi-Terminal HVDC transmission systems (MTDC). MTDC can be used for large-scale integration of offshore wind power with onshore grids. However, many of the control strategies for MTDC that have been proposed previously for offshore wind farm integration depend on local control of the wind turbine generators. This paper proposes a new control strategy, termed Current Matching Control (CMC), which can be used with any number of converter terminals, and is independent of the types of wind turbines used within each wind farm. The proposed CMC matches the current reference of the grid side converter to that of the wind farm side converters. In order to achieve such current matching, a telecommunication system will be required to facilitate calculations of the grid side current references to be carried out in real time. To validate the performance of the proposed control strategy, a generic four-terminal MTDC network, which integrates two offshore wind farms with two mainland grids, is simulated and results relating to several steady state and transient scenarios are presented.

Item type: Conference or Workshop Item (Paper)
ID code: 42233
Keywords: voltage source converter , HVDC, control, multi-terminal DC , matching control system , Electrical engineering. Electronics Nuclear engineering
Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
Department: Faculty of Engineering > Electronic and Electrical Engineering
Related URLs:
Depositing user: Pure Administrator
Date Deposited: 29 Nov 2012 15:51
Last modified: 27 Mar 2014 11:37
URI: http://strathprints.strath.ac.uk/id/eprint/42233

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