Research on voltage reactive control strategy based on fuzzy logic control and rough set in substations;

This paper analyses the deficiency of voltage reactive control in Guangzhou electric power grid,and describes the structure,principle,difficulty in technology and application of the distributed voltage.

In the paper,the classical voltage/reactive power control(VQC) strategy are concluded and discussed,such as nine-area theory,five-zone theory and intelligent optimal control strategy including fuzzy control,expert system,neural networks and so on.

Current strategy of voltage/reactive power control over substation is based on nine-area figure.

Voltage/Reactive Power Control in the Substation Based on Load Forecasting and Adaptive Ant Colony Optimization;

Strategy of voltage and reactive power control on global optimization control;

Analysis of voltage and reactive power control systems used in Conghua power network;

Application and improvement on voltage and reactive power control system based on substation supervision system;

This paper studies how to build appropriate VQC limits according to the calculation of reactive optimization.

The control strategy of VQC system adopts nine-zone diagram control strategy in these days.

This paper improves a rationalization of VQC principle - the "five-zone" theory,we program a new algorithm forming at the border and start-up value,and from the mathematical model,software realization of value and norms in several aspects of the theoretical analysis.