The Application of Regional Stability Control in Steel Enterprise Power Supply System

Comparing with the large power system, power supply system of steel enterprise has significantly different characteristics, and there has been relatively little research on its stability control. Power supply system of steel enterprises, as a typical active power-receiving system, generally has private power plants, which connected with external power grid. When disconnected with external power grid due to certain fault, it will result in frequency collapse, and even leads to large-scale blackout owing to the active power imbalance. Through analysis of the stability of one power supply system in a large-scale steel enterprise, under frequency load shedding and regional security and stability control system are adopted in this paper. The latter is applicable in various modes of operation in complex power supply systems, but with more investment.