Multi-dimensional analysis method for tripping risk of whole transmission line due to lightning shielding failure

US12135346B2 · kind B2 · utility

Assignees

• STATE GRID ZHEJIANG ELECTRIC POWER CO., LTD. TAIZHOU POWER SUPPLY COMPANY · CN
• Taizhou Hongda Electric Power Construction Co., Ltd. · CN

Inventors

• Jiandong Si · Zhejiang, CN
• Feng Guo · 安丰镇, CN
• Jian Yang · Zhejiang, CN
• Yiqin Tang · Zhejiang, CN
• Bin Tang · Zhejiang, CN
• Jun Liu · Shanghai, CN
• Wenhui Li · Nanhu, CN
• Chengshi Zeng · Zhejiang, CN
• Xin Lv · Zhejiang, CN
• Jianguo Pan · Beijing, CN
• Guanglei Wan · Zhejiang, CN
• Qiuxiao Wang · Zhejiang, CN
• Kang Wang · Beijing, CN
• Xu Jiang · Shanghai, CN
• Huan Liu · 流花街道, CN
• Junzhe Liang · Zhejiang, CN

Key dates

• Filing date: Dec 3, 2021
• Grant date: Nov 5, 2024
• Expiry date: Aug 13, 2042

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y04S10/50
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Disclosed is a multi-dimensional analysis method for a tripping risk of a whole transmission line due to a lightning shielding failure. A quantity of thunderstorm days, a tower size, a terrain proportion, an altitude, and insulation configuration data are collected for a transmission line for which a tripping risk due to a lightning shielding failure needs to be analyzed, and a striking distance, an exposure distance, a lightning resisting level of the line after altitude factor correction, and a lightning shielding failure risk of a single-base tower are calculated in turn. Characteristics of a lightning shielding failure under different nominal heights, quantities of thunderstorm days, and terrains are studied. Representative combination conditions are selected to calculate a tripping risk of a typical tower due to the lightning shielding failure. A weight coefficient is extracted, to calculate a tripping risk of the whole line due to the lightning shielding failure.