A Refined Frequency Scan Approach to Sub-Synchronous Control Interaction (SSCI) Study of Wind Farms
- 1 December 2015
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Systems
- Vol. 31 (5), 3904-3912
- https://doi.org/10.1109/tpwrs.2015.2501543
Abstract
Frequency-scan approaches for conducting Sub-Synchronous Control Interaction (SSCI) studies of wind farms is becoming a normal practice in the industry. Modern power electronics control used in many wind generators has a characteristic that couples two frequency components, similar to saliency effects of conventional generators. As a consequence, treating both wind farm and grid as single-dimension impedances could generate an inaccurate result. This paper describes a two-dimension transfer function approach that can be practically applied to ensure accuracy when evaluating SSCI aspects of power-electronic equipment such as renewable generation.Keywords
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