Large-scale wind power grid-integration reactive voltage optimizing method based on improved artificial fish swarm hybrid optimization algorithm

Abstract

The invention discloses a large-scale wind power grid-integration reactive voltage optimizing method based on an improved artificial fish swarm hybrid optimization algorithm. The method comprises the following steps: scheduling and selecting an automatic control system for a large-scale wind power base and reading the original data information of a power grid on the basis of an energy management system in the automatic control system; obtaining effective data for load flow calculation according to the obtained original data information and forming an effective data set of the whole power grid; screening the effective data set on the basis of a pre-confirmed optimizing mode, thereby obtaining a calculation number set based on the data of the whole power grid; calling for the improved artificial fish swarm hybrid optimization algorithm and performing reactive optimization on the wind power grid-integration reactive voltage on the basis of the screened calculation number set, thereby obtaining a reactive optimization result. According to the method provided by the invention, the defects of the prior art of large data throughput, poor convergence, inferior stability and the like, are overcome, so that the advantages of small data throughput, excellent convergence and high stability are achieved.

Description

technical field [0001] The invention relates to the technical field of cross-regional power grid management and control, in particular to a large-scale wind power grid-connected reactive power voltage optimization method based on an improved artificial fish swarm optimization algorithm. Background technique [0002] With the construction of a large-scale centralized new energy power generation base in my country's smart grid and the start of grid-connected power generation, its impact on the safe and stable operation of the power system is increasing. The access of large-scale new energy power generation has not only brought a huge impact on the power grid, but also made the network structure, operation mode and security and stability characteristics complex and changeable, and led to increasingly prominent stability and voltage problems of the power grid. The characteristics of volatility, intermittency and randomness of the power system also pose a huge challenge to the vo...

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Problems solved by technology

[0005] In the process of realizing the present invention, the inventors found that there are at least some defects in the prior art, such as large amount of data processing, poor convergence and poor stability.

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