Interval reactive voltage control method and device based on particle swarm optimization

Abstract

According to the interval reactive voltage control method and device based on the particle swarm algorithm, an interval reactive voltage control model constructed by the method adopts interval numbers to describe uncertainty factors in new energy power generation, the modeling mode is simple, and the safety of a control strategy output by the model can be ensured. Compared with the prior art, a probability distribution function does not need to be assumed, and convex processing does not need to be carried out. The control variables in the interval reactive voltage control model are processed through the particle swarm algorithm, the efficiency and safety of a new energy power grid reactive optimization strategy are improved, and the cost of new energy reactive voltage control can be saved.

Description

technical field [0001] The present invention relates to the field of smart grid, in particular to a method and device for interval reactive power and voltage control based on particle swarm algorithm. Background technique [0002] The second industrial revolution brought "electricity" as an energy source to the society. Through the study of electricity, the social living standard has been continuously improved. However, with the increasing environmental pollution, how to obtain electricity without causing environmental pollution has become a research problem for scientists. With the continuous development of new energy technologies, photovoltaic power generation and wind discharge technologies are becoming more and more mature, and these two technologies are used in many regions of my country for intermittent power generation. However, the new energy power generation technology will cause the change of voltage and frequency in the power grid, which poses a threat to the sol...

AI Technical Summary

Problems solved by technology

However, new energy power generation technology will cause voltage and frequency changes in the grid, which poses a threat to the solution of reactive power optimization problems

The traditional reactive power optimization problem is generally a deterministic optimization problem, but with the increasing use of new energy technologies in the power grid, there are more and more uncertain factors in the reactive power optimization problem

[0004] The inventors found in the process of implementing the present invention that the stochastic programming method has a large amount of simulation calculations, while the robust optimization method can only be used to solve convex optimization problems, and it is necessary to perform approximately convex processing on reactive power optimization, which is easy to increase the calculation error, causing the voltage control strategy to fail to function

Images