Application and Development of Relay Protection Technology in Smart Grids
Abstract：Driven by the rapid development of new energy power generation technology, the construction of smart grids has become a strategic choice in China's energy sector. Relay protection technology, as the core of grid safety, is undergoing a transformation from traditional to intelligent and information-based methods. This article discusses the new challenges that smart grids pose to relay protection, introduces advanced technologies such as intelligent sensing, wide-area protection, ultra-high voltage AC/DC hybrid transmission, adaptive reconfiguration, distributed protection configuration, and self-healing capabilities. The integration and application of these technologies have significantly improved the operational efficiency and risk resistance of smart grids. In the future, continuous technological innovation and optimization will be key to improving the relay protection system of smart grids and ensuring the security of national power supply.
Keywords：Smart GridRelay ProtectionIntelligent SensingWide-Area ProtectionAdaptive Protection Strategy
Publication Date：2025-05-25
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 62-66 )