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Rating requirements of the unified power quality conditioner to integrate the fixedspeed induction generator-type wind generation to the grid

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4 Author(s)
N. G. Jayanti ; School of Electrical Engineering Systems, Dublin Institute of Technology, Kevin Street, Dublin-8, Ireland ; M. Basu ; M. F. Conlon ; K. Gaughan

The ability of wind generation to remain connected to the grid in the event of system faults and dynamic reactive power compensation are two aspects of grid integration, which have received particular attention. The wind driven, fixed-speed induction generator (FSIG) on its own fails to fulfil these requirements of grid integration. The application of a unified power quality conditioner (UPQC) to overcome the grid integration problems of the FSIG is investigated. The role of the UPQC in enhancing the fault ride-through capability of the generator is also investigated under both full and partial terminal voltage restoration. A realistic estimation of the rating requirements of UPQC for this type of application is carried out. A general principle is presented to choose the most practical and economical rating of the UPQC. The performance comparison of a UPQC and a static synchronous compensator to aid fault ride-through capability of a 2 MW FSIG under Irish grid code requirements has been carried out and the UPQC is found to be more economical in relation to device rating.

Published in:

IET Renewable Power Generation  (Volume:3 ,  Issue: 2 )