Fuzzy chance constraint planning method and system for distributed power supply capacity distribution points of distribution network

Abstract

The invention relates to a fuzzy chance constraint planning method and system for distributed power supply capacity distribution points of a distribution network. The method comprises the steps of establishing a distributed power supply capacity distribution point optimization target function according to active loss and a distributed type power supply operating cost calculation formula of the distribution network; establishing a distribution network safety operation constraint condition according to a flow power constraint; establishing a chance constraint condition according to a probability model of the distributed power supply and load random power; solving the target function according to the constraint condition and the change constraint condition; and performing optimization on the distributed power supply capacity distribution points according to the solving result, so that the uncertainty jointed planning problem of the distributed power supply capacity distribution points can be well solved. By means of converting an inequality constraint condition into the change constraint condition higher than certain confidence level, compromise between the target function optimum and the constraint conditions can be achieved, so that the problem existing in jointed optimization of the distributed power supply capacity distribution points of the distribution network can be well solved; and therefore, reliable technological support can be provided for distributed new energy power generation and safety operation of the intelligent power grid.

Description

technical field [0001] The invention relates to the technical field of distribution network optimization planning, in particular to a fuzzy chance-constrained programming method and system for distribution network distributed power supply capacity distribution. Background technique [0002] With the rapid development of social and economic construction, the energy crisis and environmental problems have become increasingly prominent, and the traditional energy utilization form and power grid structure are undergoing profound changes. As an effective supplement and strong support for the traditional large power grid, distributed power generation technology has the advantages of small investment, Clean and environmentally friendly, reliable power supply, flexible power generation methods and other advantages. [0003] With the increase of the penetration rate of distributed power generation, the distributed power generation system also brings a series of impacts on the large po...

AI Technical Summary

Problems solved by technology

[0005] Based on this, it is necessary to address the problem that the rigid constraints in traditional distributed power planning cannot achieve a compromise between the optimal function of the objective function and the constraints, and provide a method that can achieve a compromise between the optimal function of the objective function and the constraints Fuzzy Chance Constraint Programming Method and System for Distributed Power Capacity Layout in Distribution Network

Images