Phase-change switch optimal configuration method and system based on particle swarm optimization algorithm

A particle swarm optimization, commutation switch technology, applied in the direction of calculation, calculation model, circuit device, etc., can solve the problem of ignoring the current phase angle, the installation point configuration of the commutation switch has not been studied, and the current unbalance cannot be accurately represented, etc. problem, to achieve the effect of reasonable configuration
CN112290544AActive Publication Date: 2021-01-29STATE GRID SHANDONG ELECTRIC POWER COMPANY RIZHAOPOWER SUPPLY +2
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
STATE GRID SHANDONG ELECTRIC POWER COMPANY RIZHAOPOWER SUPPLY
Publication Date
2021-01-29

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Abstract

The invention discloses a phase-change switch optimal configuration method and system based on a particle swarm optimization algorithm. The method comprises the steps of: constructing a phase-change switch configuration model according to user load power and power distribution network topology node impedance; solving the phase-change switch configuration model by using a particle swarm optimization algorithm by taking the minimized three-phase unbalance degree and the action times of the phase-change switch as target functions to obtain the optimal switch action of the phase-change switch; determining the load participating in commutation according to the change of the load before and after the optimal switching action of the commutation switch is executed; sorting the commutation times ofthe loads participating in commutation, wherein the position of the load with the maximum commutation times is the installation position of the commutation switch; and establishing a phase-change switch configuration model according to the topological structure of the power distribution network and the load power data, solving the model by using a particle swarm optimization algorithm by taking the three-phase unbalance degree and the phase-change frequency as targets, and determining the installation position of the phase-change switch according to the optimal solution, thereby realizing reasonable configuration of the phase-change switch.
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Description

technical field

[0001] The invention relates to the technical field of power quality control, in particular to a commutation switch optimization configuration method and system based on a particle swarm optimization algorithm. Background technique

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] There are many types of supply loads in the actual distribution station area, and the density of each load is different. The fluctuation of the load itself will increase the degree of unbalance of the three phases; the phase sequence switching of the load through the intelligent phase change switch can realize the balanced configuration of the load , realize the treatment of three-phase unbalance, and can avoid the problems of slow and high risk of manual commutation operation.

[0004] The phase change switch only contains one control terminal and several execution te...

Claims

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