高压电器2025，Vol.61Issue(3)：52-62,11.DOI:10.13296/j.1001-1609.hva.2025.03.006
沙戈荒风光储场站开关柜局部放电高频感知技术
High-frequency Sensing Technology of Partial Discharge of Switchgear Cabinet for Wind Solar&Energy Storage Stations in Gobi Deserts
摘要
Abstract
In the new energy station of wind,solar and energy storage in Gobi deserts,the operating conditions of electrical equipment are severe,the operation and maintenance are difficult and the operation and maintenance cost is high.Remote intelligent monitoring of the health status of the electrical equipment is an important prerequi-site for improving operation and maintenance efficiency and reducing the cost of electricity.Therefore,a kind of built-in high-frequency sensing technology for 35 kV switchgear cabinet is proposed in this paper.The high-sensitivi-ty built-in high-frequency current coupling and sensing technology is studied for the first time.A three-dimensional clustering recognition anti-pulse interference method based on three-phase and three-band energy ratio is devel-oped.The study result shows the sensitivity of the built-in high frequency current detection method is up to 22 pC.The three-dimensional clustering recognition method of energy ratio can effectively distinguish internal and external pulse signal of switchgear cabinet.On this basis,the partial discharge high frequency sensing system of switchgear cabinet is developed and used in 35 kV switchgear cabinet of solar and energy storage station in Gobi deserts.The study conclusion in this paper has significance for the development of remote intelligent monitoring technology of in-sulation status of switchgear cabinet of solar and and energy storage station in Gobi deserts.关键词
新能源场站/开关柜/局部放电/高频/三维聚类Key words
renewable-energy-source station/switchgear cabinet/partial discharge/high frequency/three-di-mensional clustering引用本文复制引用
李伟,叶昶,李乐颖,郑书生,姚维为,孙勇,胡德鹏,唐志国,齐波..沙戈荒风光储场站开关柜局部放电高频感知技术[J].高压电器,2025,61(3):52-62,11.基金项目
中国长江三峡集团有限公司科研项目资助(202103368).Project Supported by Scientific Research Project of China Three Gorges Corporation(202103368). （202103368）
