Regional-self-governed voltage control method for power distribution network with high proportion photovoltaic energy accessed and storage medium

Abstract

The invention discloses a regional-self-governed voltage control method for a power distribution network with high proportion photovoltaic energy accessed. The method comprises the following steps that: photovoltaic power generation and load time sequence data of the whole year are acquired, and the photovoltaic power generation and load time sequence data are processed by using a density clustering method to obtain a power distribution network typical scene set, wherein the power distribution network typical scene set comprises photovoltaic and load typical state combinations in different periods under different season, weather and workday types; and power distribution network regional indexes are obtained based on an intra-region voltage control effect, voltage control capability, regulation and control strategy cost and power balance combination, a target function is established according to the regional indexes, and an optimized regional model is constructed. The invention also discloses a storage medium. According to the method and storage medium of the invention, the problems of overvoltage, complex control and insufficient centralized control of existing power distribution network with high proportion distributed photovoltaic energy accessed can be solved.

Description

technical field [0001] The invention relates to the field of distribution network optimization, in particular to a voltage control method and a storage medium for a partition autonomous high-proportion photovoltaic distribution network. Background technique [0002] With the prominence of the energy crisis, solar power generation has become an important development trend. In recent years, the installed capacity of photovoltaic grid-connected households has shown a rapid growth trend. Due to the characteristics of randomness and volatility of household photovoltaics, as the proportion of distributed photovoltaics continues to increase, this will have a major impact on the security and stability of the distribution network and economic operation, mainly reflected in the grid voltage limit, power down Several aspects such as delivery and line overload. Among them, the overvoltage phenomenon is the most common and most concerned problem. Overvoltage can not only affect the safe...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a partition autonomous high-proportion photovoltaic distribution network voltage control method and storage medium, which can solve the overvoltage and control problems that occur in the existing high-proportion distributed photovoltaic access distribution network. Complexity and insufficient centralized control

Images