御冰有术！国网山西电力构筑科技抗冰屏障

Core Viewpoint - The successful operation of the fixed ice-melting device at the 500 kV Lüliang Substation marks a significant advancement in enhancing the winter ice prevention capabilities of the Shanxi power grid, addressing the challenges posed by severe weather conditions in mountainous areas [1][2]. Group 1: Ice Prevention Measures - The fixed ice-melting device is designed to operate as an "intelligent electric heater," which can be activated to melt ice on power lines using controlled direct current, effectively preventing ice accumulation that can lead to severe damage [1]. - The Shanxi power grid has experienced nearly 50% of its faults due to meteorological disasters over the past five years, highlighting the urgent need for improved disaster resilience [1]. Group 2: Infrastructure Enhancements - The 500 kV Yunlü Line has undergone a successful ice prevention renovation, which includes the installation of visual monitoring devices and automatic heating features to ensure clear monitoring during adverse weather conditions [2]. - The renovation also includes the addition of 208 interval rods to suppress line swaying, creating a comprehensive protective network for the power line [2]. Group 3: Technological Innovations - The Shanxi Electric Power Meteorological Research Center has developed an ice image recognition algorithm using over 48,000 field images, enabling the system to identify ice types and thickness under various climatic conditions [3]. - Since January 2025, the center has automatically monitored ice on lines 68 times and supported ice-melting operations 17 times, demonstrating effective early risk identification and warning capabilities [3]. Group 4: Future Plans - The company plans to deepen research in power meteorology and enhance monitoring and disaster warning analysis during the 14th Five-Year Plan period, aiming to strengthen the power grid's proactive defense capabilities [3].