Reactive compensation configuration method based on static and transient voltage stability constraint

Abstract

The invention provides a reactive compensation configuration method based on a static and transient voltage stability constraint. The method comprises the following steps: determining level year data; performing reactive delaminating and districting balance analysis; performing static voltage stability analysis; performing transient voltage stability check; and determining reactive compensation configuration. According to the method, reasonable final reactive compensation configuration is provided through comprehensive optimization of the reactive delaminating and districting balance analysis, static voltage stability analysis and transient voltage stability check. Due to the adoption of the method, the accuracy and effectiveness of reactive compensation configuration can be effectively increased, unnecessary investment is avoided, and waste is reduced; and meanwhile, the voltage instability risk resistance of a power grid is improved greatly, and safe, stable, efficient and economic running level of the power grid is raised.

Description

technical field [0001] The invention belongs to the technical field of power systems, and in particular relates to a reactive power compensation configuration method based on static and transient voltage stability constraints. Background technique [0002] On the basis of ensuring the safe and stable operation of the power grid, in order to improve the economic benefits of power grid operation, reduce active power loss and investment, and improve power quality, it is necessary to rationally configure reactive power compensation devices and reasonably control their switching, and strive to achieve "reactive power distribution". layer partition balance" goal. Insufficient or unbalanced reactive power, on the one hand, causes the system voltage to drop, threatens the stability of the power grid, and may induce serious faults such as voltage collapse; on the other hand, it may endanger the safety of the equipment itself and cause unnecessary waste of investment. [0003] At pre...

AI Technical Summary

Problems solved by technology

However, with the continuous expansion of the scale of the interconnected power system and the continuous improvement of the voltage level, especially after the UHV large power grid is put into operation, the power grid covers a vast area and has a large number of nodes. Both the traditional reactive power optimization algorithm and the artificial intelligence algorithm have insufficient memory and convergence. Dimensional disaster problems such as speed, and it is difficult to find the global optimal solution

There are still some problems in the practical application of such algorithms

[0006] In addition, with the continuous expansion of grid scale and transmission capacity, as well as the extensive adoption of new transmission technologies, such as the adoption of large-scale power electronic devices and the development of flexible AC transmission technology (FACTS), the control status of units and systems has become increasingly complex. Many new stability issues follow

Images