Reconfiguration optimization method of ship power grid based on particle swarm optimization

Abstract

The invention discloses a ship power grid reconfiguration optimizing method based on a particle swarm algorithm. The ship power grid reconfiguration optimizing method combines the particle swarm algorithm and a small population algorithm. Combinations of all switching-on / off states of circuit breakers between a bus in a ship power grid and each load are used as feasible solutions; each feasible solution is used as a particle, and the set of all the feasible solutions forms a particle swarm; particle swarm algorithm optimization is carried out on the particle swarm; an optimal solution space obtained by carrying out small population algorithm on the particle swarm is used for optimizing; and the ship power grid is reconstructed by using the optimal feasible solution. Compared with the existing methods, the ship power grid reconfiguration optimizing method has the advantages of less occupied machine hours and rapid calculation speed, and the requirement on reconstruction instantaneity of the ship power grid can be met.

Description

technical field [0001] The invention belongs to the field of swarm intelligent computing, and in particular relates to a reconfiguration and optimization method for a ship power grid based on a particle swarm algorithm. Background technique [0002] Power system network reconfiguration refers to periodically adjusting the network structure to achieve load balance, eliminate overload, improve the quality of power supply voltage, and ensure the safety of power consumption. The ship’s power grid reconfiguration is different from the land power grid reconfiguration, mainly reflected in: 1. The main goal of the ship’s power grid reconfiguration is to maximize the continuous power supply to high-priority loads when a fault occurs or the battle is damaged. The most basic load demand of the ship; 2. Compared with the land power system, the power line of the ship power system is shorter and the impedance is very small, and its active network loss can be ignored; 3. The failure of the...

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Problems solved by technology

Although the above method can realize the reconfiguration of the ship power grid and achieve a certain optimization effect, it does not make adaptive improvements to the characteristics of the ship power grid reconfiguration. It needs to be selected from the candidate solution set according to the operating conditions of the ship power grid. The calculation time for secondary objectives such as active power grid loss is too long, which cannot meet the real-time requirements of the ship power grid reconfiguration problem

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