| 基于降低雷电流最大陡度线路防雷新方法的研究 |
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| 引用本文： | 车诒颖,齐冲. 基于降低雷电流最大陡度线路防雷新方法的研究[J]. 广东输电与变电技术, 2009, 11(3): 24-27 |
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| 作者姓名： | 车诒颖 齐冲 |
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| 作者单位： | 1. 广东电网公司深圳供电局
2. 深圳市行健自动化系统有限公司 |
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| 摘 要： | 雷电流陡度大是雷电破坏的主要原因之一。采用人为的手段降低雷电流陡度，可以减少雷电对杆塔等雷击点的破坏作用。提出了限陡避雷针的新理论，深入讨论了它的作用机理。通过暂态仿真软件ATP对模型进行了定量研究，结合大电流冲击发生器的模拟实验。证明了限陡避雷针的使用，能有效地降低雷电流陡度，降低塔顶电位。为电力设备防雷又提供了一种新的手段。
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| 关 键 词： | 雷电流陡度 限陡避雷针 暂态仿真软件 |
Study on A New Lightning-proof Method basing on the Limiting Maximum Steepness of the Lightning Current |
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| Che Yiying,Qi Chong. Study on A New Lightning-proof Method basing on the Limiting Maximum Steepness of the Lightning Current[J]. Guangdong Power Transmission Technology, 2009, 11(3): 24-27 |
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| Authors: | Che Yiying Qi Chong |
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| Affiliation: | ( Shenzhen Power Supply Bureau of Guangdong Power Grid Corporation;Wellreach Automation Engineering Co. Ltd.,) |
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| Abstract: | Large lightning current steepness is one of important reasons of destruction. Using some artificial methods to reduce the lightning current steepness, could aleviate the lightning destruction at the tower or other stricken points. A new theory of steepness limiting lightning rod for this purpose is put forward in this paper. And the model is quantitatively simulated with Electro- Magnetic Transient Program ATP. Combining with simulating experiments via large current surge generator done in the high-voltage laboratory, proves lightning current steepness limiting rod can effectively reduce the lightning steepness and the voltage on tower top. The steepness limiting lightning rod provides a new lightning prevention measure for power equipment. |
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| Keywords: | Lightning steepness Steepness limiting lightning rod Electro-Magnetic transient program |
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