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Variance in multi-blade induced lightning overvoltages among different wind farm topologies.
Fady Wadie1, Ali Saeed Almuflih2, Z M S Elbarybary3
1Faculty of Engineering, Mechatronics and Robotics Engineering Department, Egyptian Russian University, Badr City, Egypt.
Plos One
|September 5, 2024
Summary
Investigating wind farm topology
Area of Science:
- Electrical Engineering
- Power Systems
- Renewable Energy Integration
Background:
- Lightning-induced overvoltages pose a significant threat to grid reliability.
- The impact of wind farm topology on these overvoltages is under-researched.
- Understanding these effects is crucial for designing resilient power grids.
Purpose of the Study:
- To analyze the influence of different wind farm topological formations on lightning-induced overvoltages.
- To identify the most effective topology for mitigating lightning impacts.
- To provide recommendations for enhanced lightning protection in wind farm grid integration.
Main Methods:
- Simulation of lightning strikes on multi-blades using ATP software.
- Evaluation of four distinct wind farm topologies: radial, single-sided ring (SSR), double-sided ring (DSR), and star.
- Analysis of voltage injection characteristics and performance variations across topologies.
Main Results:
- Multi-blade lightning strikes increased injected overvoltages by 15% to 100% across all topologies.
- The star topology demonstrated superior performance, significantly reducing injected overvoltages.
- Reductions of 50.78% (SSR), 66.07% (DSR), and 89.04% (star) were observed compared to the radial topology.
Conclusions:
- Wind farm topology critically affects lightning-induced overvoltages.
- The star topology offers the most robust protection against lightning strikes.
- Design engineers should prioritize the star topology for improved lightning protection in wind farm installations.
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