Method and system for optimizing access decision of flexible multi-state switch of power distribution network

Abstract

The invention discloses a method and system or optimizing an access decision of a flexible multi-state switch of a power distribution network. The method for optimizing the access decision of the flexible multi-state switch of the power distribution network comprises the steps of S1, establishing multiple feeder line groups off-line, and screening a plurality of feeder line groups to be selected from the multiple feeder line groups according to an SOP access position preliminary screening method; and S2, respectively constructing a quantitative calculation model and an SOP access cost model ofperformance indexes from the perspective of asset performance evaluation, and selecting an optimal feeder line group from the plurality of feeder line groups to be selected by adopting a grey correlation analysis method.

Description

technical field [0001] The invention relates to an operation optimization method of a distribution network, and mainly describes a two-step decision-making method for optimal access of a flexible multi-state switch in the distribution network. Background technique [0002] With the gradual advancement of the national new energy and electricity reform policies, a large number of distributed energy sources, electric vehicle charging devices, energy storage devices and micro-grids are connected to the distribution network, and the penetration rate continues to increase. The randomness of new energy sources and loads is likely to cause large fluctuations in feeder power and voltage violations, making the operation of the distribution network face severe challenges such as severe voltage fluctuations and large line losses. At the same time, network reconfiguration based on tie switches is limited by issues such as switch response speed, operating life, and inrush current, which c...

AI Technical Summary

Problems solved by technology

The randomness of new energy sources and loads is likely to cause large fluctuations in feeder power and voltage violations, making the operation of the distribution network face severe challenges such as severe voltage fluctuations and large line losses.

At the same time, network reconfiguration based on tie switches is limited by issues such as switch response speed, operating life, and inrush current, which cannot meet the requirements of uninterrupted power supply for sensitive loads, and also limits the further acceptance of renewable energy.

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