Journal
ENERGIES
Volume 15, Issue 3, Pages -Publisher
MDPI
DOI: 10.3390/en15031074
Keywords
wind power control; curtailment; delta control; wind farm management system; wake effect
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Funding
- Hanbat National University
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This paper proposes an algorithm that considers the wake effect to achieve flexible control during the actual power curtailment process in a wind farm. The effectiveness of this method is verified through the application of the curtailment communication signal to a real-time digital simulator (RTDS).
When a lot of surplus power occurs in wind power system, an output limit is implemented to directly or indirectly curtail the output to maintain a balance between the supply and demand of the power system. The curtailment process of a large-scale wind farm causes loss of power and mechanical loads. Resultantly, imbalanced curtailments often occur, resulting in unilateral burdens for the owners of wind farms. Considering the curtailment issue, the study for minimizing system loss of power plants is required in terms of operational efficiency. This paper proposes an algorithm to achieve flexible control during the actual power curtailment process in a wind farm, considering the wake effect. Here, the Monte Carlo method was adopted to calculate the curtailment weight in wind farms by using power loss terms. In addition, an equivalent model of a real wind farm was implemented and simulated through real simulation computer-aided design (RSCAD) software. This paper verified the effectiveness of the proposed method by applying the curtailment communication signal to a real-time digital simulator (RTDS). The results showed a reduction in the computational loading of individual wind turbine curtailment values with the decline of the total effective power loss.
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