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Analysis of Two-Speed Wind Farm Operation From Grid-Side Measurements

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2 Author(s)
Robert J. Best ; School of Electronics, Electrical Engineering and Computer Science, Queen's University Belfast, Belfast, Northern Ireland ; D. John Morrow

This paper analyzes data captured by a phasor measurement unit at a wind farm, employing two-speed induction generators, and investigates aspects of the control system's interaction with the power system. Composite superimposed transient events are proposed as a method to improve the quality of the analysis and reduce errors caused by unknowns, such as wind speed variation. A Mathworks SimPowerSystems model validates the inertia contribution of the wind farm, which is an important parameter in power systems with high wind penetration. Transients caused by turbine speed transitions are identified and explained. The analysis also highlights areas where wind farm control should be improved if useful inertia contribution is to be provided.

Published in:

IEEE Transactions on Sustainable Energy  (Volume:4 ,  Issue: 3 )