Static Voltage Stability Improvement of Wind Power System by Network Topology Optimization
To reduce the impact of wind power connection on static voltage stability, the network topology optimization (transmission line switching) is proposed to improve the static voltage stability margin of wind power system. The line switching model is presented to increase the load margins of power syst...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Harbin University of Science and Technology Publications
2022-08-01
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| Series: | Journal of Harbin University of Science and Technology |
| Subjects: | |
| Online Access: | https://hlgxb.hrbust.edu.cn/#/digest?ArticleID=2118 |
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| Summary: | To reduce the impact of wind power connection on static voltage stability, the network topology optimization (transmission line switching) is proposed to improve the static voltage stability margin of wind power system. The line switching model is presented to increase the load margins of power systems. The objective function is to maximize the load margin of the power system determined by the predicted wind output, as well as improving the load margins of all wind scenarios up to a given value, and the power system after topology optimization meets the safe operation requirements. Aiming at the computation problem caused by a large number of wind scenarios, a scenario reduction method tailored for static voltage stability problems is proposed. To solve the proposed problem for online applications, a stage-based effective line switching identification methodology is proposed. Finally, the numerical studies are carried out to verify the effectiveness of the proposed methodology. The results have shown that effective transmission line switching can improve the static voltage stability of wind power grid connected system. |
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| ISSN: | 1007-2683 |