Planning method for distributed power source in power distribution network

Abstract

The invention discloses a planning method for a distributed power source in a power distribution network. The planning method includes the steps that a distributed power source planning model in the power distribution network is established; according to the establishment of the distributed power source, multiple scenes are selected and time sequence features and probability features of the distributed power source are taken into consideration on the basis of analyzing the typical time sequence features of the distributed power source and analyzing the probability features of the distributed power source, and an indefinite model of the distributed power source is established; according to the load flow calculation of a power system, a probabilistic load flow calculation method based on a semi-invariant method is adopted for conducting the load flow calculation; the power distribution network accessing position and volume of the distributed power source are determined, wherein the probabilistic load flow calculation based on the semi-invariant method is embedded into the particle swarm optimization for solving the optimization problem, the method of a penalty function is used for processing constraint conditions, and the optimized optimal solution serves as the address constant volume scheme of the distributed power source. According to the planning method, the time sequence features and the randomness of the distributed power source can be involved at the same time, and the unit earning and cost, obtained after the access of the distributed power source, of the power distribution network are taken into consideration.

Description

technical field [0001] The invention relates to a planning method of a distributed power supply. In particular, it relates to a planning method for distributed power sources in distribution networks that have conditions for installing distributed power sources in various industrial parks, buildings, and communities. Background technique [0002] Distributed power generation is designed and installed in order to meet the needs of some special users and support the economic operation of the existing distribution network. Get an enhanced form of power generation. Distributed power generation is generally located near the end users of the distribution network. It is built in industrial parks, in buildings, and in communities, which can provide benefits for users and power transmission and distribution systems. Distributed power supply is more economical and effective than centralized power supply in dealing with peak power load, and it is a beneficial supplement to centralized...

AI Technical Summary

Problems solved by technology

[0004] In recent years, with the in-depth planning of distributed power generation, existing studies have solved the problem of site selection and capacity determination of distributed Supply peak load, thereby increasing the load supply capacity of the distribution network, that is, delaying the network update, substantially reducing the cost of the grid investor and thus reducing the cost of the distribution network unit revenue

And the timing characteristics and probability characteristics of distributed power generation such as wind turbines and photovoltaics have not been taken into account in the planning

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