Reactive Power Optimization Control Rearch Of Changzhou Power Network

Voltage is an important indicator of the power quality. Reactive power compensation and reactive power balance are fundamental conditions to guarantee voltage quality for power system, Effective control and reasonable reactive power compensation, can not only ensure the power quality, but also improve the stability and safety of power system, reduce electric energy loss, enhance the equipments transmission capacity and economic efficiency for power system.The article analyzes the purpose and significance of reactive power optimization, this article introduces the research status of reactive voltage optimization control, and briefly analyzes the advantages and disadvantages of various control systems. At the same time introduces the commonly used in reactive power optimization problem of several intelligent optimization algorithms, On the basis of the in-depth study of the Changzhou power network reactive power optimization control problems.Changzhou power network still exist some inadequacy in reactive power optimization control, including substation capacitors within the unit capacity is too big, reactive power compensation is not flexible, easy to cause excessive reactive compensation or inadequate; With the continuous development of power network, power load is increased, part of the substation reactive power compensation capacity is insufficient; The power network operation mode is changeful, strategy is not corresponding to the reactive power optimization control system, or to perform is limited; Reactive power optimization control system control module, led to some special connection mode, the system cannot correspond. Aiming at the existing problem of Changzhou power network reactive power optimization control, this paper puts forward the corresponding solutions, To reasonable grouping of capacitor, the capacitor has a capacity of refining a few copies of controlled respectively; Increase the capacitor Banks, increase the capacitance of the substation; Improved control strategy of reactive power optimization system, refinement system control parameters; Increase the system control module, make its can adapt to more special connection mode.Based on the reactive power optimization proposed improvement scheme, this article was carried out example analysis, validate the rationality of the proposed solutions. Compare the voltage qualified rate and the percent of pass on electricity rate before and after, the result shows clear with the improved scheme have a more obvious increase.