Double-layer and second-order cone programming method and system for new energy digestion capability of power distribution network

Abstract

The invention provides a double-layer and second-order cone programming method and a system for the new energy digestion capability of a power distribution network. According to the real-time maximum output of a distributed power supply, the maximum output power of the distributed power supply, capable of being digested by the power distribution network within a scheduling period, is calculated. According to the active power resource and the reactive power resource of the power distribution network, participating in the scheduling process, the influence mechanism of the output uncertainty of the distributed power supply on the voltage distribution and the reactive power flow of the power distribution network is reflected. Therefore, the active power resource and the reactive power resource of the power distribution network are coordinated, so that the distributed power supply is fully digested. Meanwhile, based on the upper-layer planning target function and the lower-layer planning target function of the power distribution network, a constraint condition for the safe operation of the power distribution network to meet is obtained. In this way, upper-layer planning decision-making variables and lower-layer planning decision-making variables for the power distribution network are solved. That means, the digestion capability of the power distribution network for the distributed power supply is calculated and obtained. Meanwhile, the solving result of lower-layer planning decision-making variables is fed back to the upper-layer planning decision-making variables of the power distribution network. Finally, the distributed power digestion capability of the power distribution network is accurately determined.

Description

technical field [0001] The invention relates to the technical field of power grids, in particular to a double-layer second-order cone planning method and system for determining new energy consumption capacity of a distribution network. Background technique [0002] The continuous increase in electricity demand, the shortage of traditional energy sources, and the opening of the electricity market are driving the grid to develop in an efficient, flexible, smart, and sustainable way to adapt to future technological needs. Sustainability is the basic feature of the future power grid, and its essence is the large-scale access and application of distributed power, especially renewable energy. Distributed generation has developed rapidly in recent years, and its impact on the distribution network voltage will be considered from two aspects. First of all, after the distributed power supply is connected, under steady state conditions, the voltage at each load node along the feeder w...

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a double-layer second-order cone programming method and system for determining the new energy consumption capacity of the distribution network for the problem of difficult determination of the distributed power consumption capacity.

Images