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IT Home reported on August 5 that according to the China Southern Power Grid, the country's first precise flexible stability control system began operation, which was the first to realize the control of new energy storage resources.Hundreds of millisecondsFast and continuous control to improve load control accuracy 1000x, realizing "precise control of non-civilian electricity consumption" and flexible control of new energy storage by "adjusting instead of cutting" at the millisecond level.

▲ Image source: Guangdong Guangzhou Power Supply Bureau of China Southern Power Grid

According to reports,The Southern Power Grid is in AC/DC hybrid operation, and the power grid needs to be equipped with a safe and stable control systemIn the event of serious faults such as large-capacity DC lockout, stable control measures such as machine cutting and load shedding can be quickly taken to prevent system stability from being destroyed.

In March 2024, with Nansha District of Guangzhou as a pilot, a precise, flexible and stable control system with a multi-dimensional hierarchical and partitioned system architecture was built. The load shedding control method was changed from the traditional 110 kV switching mode to hundreds of milliseconds of precise real-time control of user branch switches of the 10 kV ring network switch cabinet, avoiding people's livelihood and important loads, achieving "precise" control of load shedding and "accurate" division of user objects, and improving the level of refined management and control of the safety and stability line of defense.

In response to the problem of insufficient mobilization of flexible resources such as light, storage, and charging, the Guangzhou Power Supply Bureau selected the Furong new energy storage power station, and was the first in the country to organize the research and development and put into production a safe, controllable, flexible, intelligent and stable control terminal suitable for new energy storage and other flexible resources. The actual measured time for the new energy storage to adjust to full power is 137 milliseconds, which is the first time in the country to creatively realize the continuous adjustment and control of flexible resources.

IT Home found out thatThe system has been incorporated into the actual operation of Kunliulong DC stabilization systemThrough precise and flexible regulation of system load and new energy storage, it ensures the safe and stable operation of large AC and DC power grids, and becomes a popular and replicable sample of the stabilization and control system of large receiving city power grids.