Method for reconstructing and modeling uncertainty of distribution network in demand response viewing angle

Abstract

The invention discloses a method for reconstructing and modeling the uncertainty of a distribution network in a demand response viewing angle, which comprises the following steps: 1) constructing a distribution network reconstruction model, which comprises a distributed power supply parameter and an electric automobile parameter; 2) dividing the system into corresponding periods according to a peak-valley time-of-use tariff method for reconstruction respectively; and 3) taking the minimum network loss as a target function for the reconstruction to obtain the desired value of the target function by probabilistic load flow computation and solve the distribution network reconstruction model by an improved quantum evolutionary algorithm. The reconstruction model provided by the invention performs reconstruction in different periods according to the influence of one of demand response forms (peak-valley time-of-use tariff) on load to better overcome the defect of a lot of operation on a switch of the real-time reconstruction. Meanwhile, the method reconstructs data of a section without taking the influence of demand response on load into account to overcome the defects of larger network loss of an obtained topological structure in other periods.

Description

technical field [0001] The invention belongs to the technical field of power system operation and control, and in particular relates to a modeling method for reconstruction of distribution network uncertainty from the perspective of demand response. Background technique [0002] At present, smart grid is a research hotspot in the power industry today, and it is a major technological innovation and change trend of the power system in the 21st century. In order to achieve the goal of safe, reliable, economical, clean, efficient and interactive power system, smart grid has attracted widespread attention from many countries. [0003] With the increasing price of primary energy in the world and the continuous deterioration of the environment, renewable energy has been vigorously developed, and the use of distributed power (Distributed Generation, DG) has alleviated the pressure on global energy and the environment to a certain extent. DG will become an important way of electric ...

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Problems solved by technology

[0007] Purpose of the invention: The present invention aims at the defect that the distribution network reconfiguration method in the prior art does not comprehensively consider the impact of distributed power sources, electric vehicles and demand response on the load, resulting in results that do not conform to the actual situation, and provides a distribution network from the perspective of demand response. Modeling method for power grid uncertainty reconstruction

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