On October 29, 2018, the project titled “Study on the Comprehensive Defense System of Megacity Power Grid under Sudden Extreme Faults,†led by the Stabilization Company, successfully passed the on-site acceptance organized by Shenzhen Power Supply Bureau Co., Ltd. in Shenzhen, Guangdong. This milestone marks a significant step forward in enhancing grid resilience against unpredictable and severe disruptions.
As China's economy continues to grow and urbanization accelerates, the scale and number of large cities are expanding rapidly. According to forecasts, power demand in many major cities will significantly increase over the next 10 to 20 years. However, this growth also brings new challenges, particularly when sudden extreme events—such as typhoons or other natural disasters—cause power outages. These incidents can have severe consequences on both the economy and daily life, making it crucial to develop an advanced, integrated defense system for megacity power grids.
In response, the Shenzhen Power Supply Bureau launched a tender in 2017 for a scientific research project focused on building a comprehensive defense system for mega-city power grids under extreme weather conditions. The project aimed to address key technical challenges, including network model integration, fault scenario generation, real-time stability analysis, and decision support systems to ensure grid reliability.
After one year of intensive research, the State Grid Nanrui Stabilization Company developed a comprehensive framework for managing power grid risks during extreme events. Their work included risk assessment and prevention strategies for sudden external faults caused by natural disasters, as well as a multi-level data integration approach that combines topology-based identification with safety impact analysis. They also introduced an online safety analysis method tailored for typhoon-prone areas, using geographic models and weather data to predict fault probabilities and generate accurate fault scenarios.
The expert review panel carefully examined the project’s findings, reviewed all relevant documentation, and engaged in detailed discussions. They concluded that the project met all planned objectives and achieved its intended goals, thereby passing the final inspection.
This breakthrough enables more effective analysis, prediction, and decision-making for grid safety under extreme conditions. It allows for early identification of potential threats and the implementation of targeted control measures, supporting grid operators in handling unexpected weather-related incidents more efficiently. Ultimately, it enhances the overall safety and reliability of power grids in megacities.
(Source: Nanrui Group Co., Ltd., Tendering Network, and News)
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