Faculty of Engineering, Mechatronics and Robotics Engineering Department, Egyptian Russian University, Badr City, Egypt.
Department of Industrial Engineering, College of Engineering, King Khalid University, Abha, Saudi Arabia.
PLoS One. 2024 Sep 5;19(9):e0308449. doi: 10.1371/journal.pone.0308449. eCollection 2024.
The impact of the topological formation of wind farms upon the lightning induced overvoltages injected into the grid was not covered earlier in literature. However, this topic is highly important to be investigated to allow the usage of the most reliable topology against lightning strikes. For such reason, the paper investigates this point with consideration of most damaging cases as lightning strikes to multi-blades. The testing used ATP software for four main topologies, radial, single-sided ring SSR, double sided ring and star topology. The features defining the similarities in response and the variance range between these topologies were recorded and analyzed. The multi-blade strikes gave an expected increase of 15% to 100% in the injected overvoltage to the grid for all topologies. The star topology showed the most reliable performance by allowing the least injected overvoltage to the grid. The percentage of reduction in the magnitude of the injected overvoltages reached 50.78%, 66.07% and 89.04% for SSR, DSR and star topology respectively with respect to radial topology. Recommendation was provided for design engineers to consider star topology during design phase in terms of more reliable lightning protection.
风力发电场的拓扑结构对注入电网的雷击过电压的影响在文献中尚未涵盖。然而，为了能够使用最可靠的拓扑结构来抵御雷击，研究这个问题非常重要。出于这个原因，本文考虑了最具破坏性的情况，即多叶片遭受雷击，对这个问题进行了研究。测试使用 ATP 软件对四种主要拓扑结构（辐射型、单侧环形 SSR、双侧环形和星形拓扑结构）进行了研究。记录并分析了定义这些拓扑结构之间响应相似性和方差范围的特征。对于所有拓扑结构，多叶片雷击都会导致注入电网的过电压增加 15%到 100%。星形拓扑结构的表现最为可靠，允许注入电网的过电压最小。与辐射型拓扑结构相比，SSR、DSR 和星形拓扑结构的注入过电压幅度分别降低了 50.78%、66.07%和 89.04%。建议设计工程师在设计阶段考虑星形拓扑结构，以提供更可靠的雷击保护。
