Affiliation:
1. Electric Power Research Institute, China Southern Power Grid, Guangzhou 510063, China
Abstract
Background:
The penetration level of a wind farm with transient stability constraint and
static security constraint has been a key problem in wind power applications.
Objective:
The study explores maximum penetration level problem of wind considering transient
stability constraint and uncertainty of wind power out, based on credibility theory and corrected
energy function method.
Methods:
According to the corrected energy function, the transient stability constraint of the power
grid is transferred to the penetration level problem of a wind farm. Wind speed forecast error is
handled as a fuzzy variable to express the uncertainty of wind farm output. Then this paper builds a
fuzzy chance-constrained model to calculate wind farm penetration level. To avoid inefficient
fuzzy simulation, the model is simplified to a mixed integer linear programming model.
Results:
The results validate the proposed model and investigate the influence of grid-connection
node, wind turbine characteristic, fuzzy reliability index, and transient stability index on wind farm
penetration level.
Conclusion:
The result shows that the model proposed in this study can consider the uncertainty of
wind power out and establish a quantitative transient stability constraint to determine the wind farm
penetration level with a certain fuzzy confidence level.
Funder
Science and Technology Project of CSG
Publisher
Bentham Science Publishers Ltd.
Subject
Electrical and Electronic Engineering,Electronic, Optical and Magnetic Materials
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