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Hybrid HVDC for power transmission to island networks

Andersen, B. and Xu, L. (2003) Hybrid HVDC for power transmission to island networks. In: 2003 IEEE PES Transmission and Distribution Conference and Exposition, 2003-09-07 - 2003-09-12.

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Abstract

A hybrid system, comprising a fine commutated thyristor HVDC converter and a STATCOM, is proposed in this paper for the connection of networks with no synchronous generation to a main grid. The proposed system combines the robust performance and low capital cost and power loss of a line-commutated RVDC converter, with the fast dynamic performance of a VSC system. The paper describes the principles and control strategies of the proposed system. PSCAD/EMTDC simulations are presented to demonstrate the robust performance and to validate the proposed system during various operating conditions such as black-start, variations of load or generation and ac fault conditions.