Network structure simplification processing method for power distribution network reconstruction

Abstract

The invention provides a network structure simplification processing method for power distribution network reconstruction specific to the problems of complex power distribution network structure, long result solving time during reconstruction and low power flow calculation speed. A network structure is simplified into a simplified topological structure consisting of a plurality of areas by taking an operable switch in the network structure as a boundary according to the characteristics of the network structure during power distribution network reconstruction, so that a topological reconstruction strategy is generated rapidly under the condition of meeting radial network topological constraint, and the power flow simplification calculation is performed once the topological reconstruction strategy is generated; the calculation speed is increased through a power flow simplification model, an optimal network structure is obtained rapidly, and real-time optimization control of a power distribution network is ensured.

Description

technical field [0001] The invention belongs to the technical field of power distribution system automation, and in particular relates to a network structure simplification processing method for distribution network reconfiguration. Background technique [0002] Distribution network reconfiguration is an important means to optimize the operation of distribution system and an important content of distribution automation research. The distribution network has the characteristics of closed-loop design and open-loop operation. A large number of section switches for isolating faults and a small number of tie switches for providing optional paths are often configured in the network. According to different load conditions, change the state of these switches to achieve the purpose of adjusting the operating state of the network. Distribution network reconfiguration is aimed at balancing network load, eliminating operating risks, reducing network losses, and reducing operating costs...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies of the above-mentioned prior art, the present invention aims at the problems of complex distribution network structure, long solution time and slow power flow calculation speed during reconstruction, and provides a network structure simplified processing method for distribution network reconfiguration. The characteristics of the network structure during power grid reconfiguration, taking the operable switches in the network structure as the boundary, simplify the network structure into a simplified topology structure composed of several regions, and quickly generate a topology reconfiguration strategy under the topology constraints of the radial network. And every time a topology reconstruction strategy is generated and a power flow simplified calculation is performed, the simplified power flow model is used to increase the calculation speed, quickly obtain the optimal network structure, and ensure real-time optimal control of the distribution network

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