China's automatic voltage control technology has reached the world's leading level

The voltage control of complex power grids has always been a worldwide problem
.
All the major power outages in the world in the past 20 years are related to
this problem.
The automatic voltage control system launched by Sun Hongbin's team at Tsinghua University successfully solved this core problem
.

Recently, the achievement appraisal meeting of "Key Technologies and Applications of Complex Power Grid Self-discipline-Collaborative Reactive Voltage Automatic Control System" was held
at Tsinghua University.
It is reported that this achievement has greatly improved the safety and economy of power grid operation, and has been promoted and applied in 22 provincial power grids, helping Jiangsu power grid save nearly 100 million kWh of electricity loss a year, and realizing the first output of China's advanced power grid control system to the United States, "making China far ahead of the world in the field of voltage control"
.

In the past, China adopted the method of relying on manual and decentralized control to control the power grid
in real time.
In the control centers of power grids at all levels, power plants, substations and other places, there are 24-hour dispatching operators on duty, and once problems are found, they will call level by level and request corresponding adjustments
.
This approach not only consumes huge manpower, relies on the experience of dispatchers, but also does not provide effective coordination
from the perspective of benefiting the overall power grid.

Therefore, it is particularly necessary to make the voltage control from manual to automatic - analyze the real-time collected power grid data, use effective algorithms to form decisions, and coordinate and control all kinds of reactive voltage control equipment in the power grid, so that the entire power grid is always in the best voltage state and ensure the safety and economy
of power grid operation.