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Research on Online Modeling Technology of Wind Farm in Online Stability Analysis

The existing domestic wind farm model used in online calculation is off-line approximate equivalent calculation model, which has no refined modeling of wind farm, which affects the calculation accuracy of online stability analysis and cannot meet the requirements of online calculation accuracy. The purpose of this paper is to use the improved directed acyclic graph theory calculation method to realize the calculation of wind farm transmission line parameters. By grouping and equating the power and impedance of units, a more precise on-line calculation model of wind farm is given in real time, which meets the requirements of on-line analysis for wind farm model accuracy.