China's control and protection device industry

The control and protection device industry in China has achieved a paradigm shift from 'mechanical protection' to 'intelligent decision-making' through technological innovation, with the core breakthrough being the deep integration of edge intelligence, digital twins, and multi-source collaborative control. The industry uses domestically produced intelligent trip units, LSTM health prediction algorithms, and IEC61850 protocol stacks as the technical foundation to build a 'perception analysis decision execution' closed-loop system. The response delay of key equipment is compressed to<50ms, and the accuracy of fault warning exceeds 92%. Companies such as Chint and Delixi have embedded AI diagnostic modules into low-voltage circuit breakers to achieve early identification of hidden faults such as contact wear and insulation degradation. After application, the operation and maintenance costs of a certain substation have decreased by 38%. In the field of new energy, intelligent control devices support V2G vehicle grid interaction, enabling electric vehicles to become mobile energy storage units and participate in grid peak shaving and frequency regulation; Inner Mongolia 500kV busbar magnetic control reactor accurately compensates for new energy fluctuations and increases consumption rate by 17%. Jiangsu Shengneng Cloud Platform integrates optical storage charging and virtual power plant functions, and schedules 1200+nodes in real-time through control devices to achieve peak valley arbitrage and carbon emission optimization. The industry has led the development of 8 national standards and participated in 2 IEC international standards, with a localization rate exceeding 80%. However, high reliability AI chips and multi protocol heterogeneous communication modules still rely on imports.