Ship power grid topology optimization method

Abstract

The invention provides a ship power grid topology optimization method. The method comprises the following steps: constructing a ship power grid topology spanning tree; selecting a reliable redundant branch to increase the reliability of the ship power grid topology; calculating the reliability of the ship power grid topology after the reliable redundant branch is added by utilizing a Monte Carlo method; the problem that optimization of an exhaustion method is difficult due to the fact that the contradiction between calculation precision and calculation complexity is prominent is effectively solved, and topological structure design of the whole system network considering adaptability and reliability is achieved. A set of relatively complete topological structure optimization design method system is constructed, and a relatively perfect optimization design technical support is provided for an overall scheme of a ship power system.

Description

technical field [0001] The invention relates to the fields of power system analysis and energy management, in particular to a method for optimizing the topology of a ship power grid. Background technique [0002] For modern all-electric ships, the power system network topology can realize the comprehensive management, flexible configuration and efficient utilization of multiple energy sources. In the military field, it serves as a power supply path connecting ship generators and equipment loads, and converts electrical energy to supply propulsion, weapons and daily loads respectively, and ensures the continuity of power supply for important loads through the conversion path; in the civilian field, it provides power for ships. It adopts different forms of energy provided by traditional diesel engines, new LNG, lithium batteries, etc., and converts these energy into electrical energy for propulsion and daily loads through inverters, and realizes the energy saving and emission ...

AI Technical Summary

Problems solved by technology

If the reliability of the network topology is not up to the standard, it is necessary to increase the network redundancy, which is in conflict with the optimization of system adaptability, resulting in poor adaptability

[0004] 2) The traditional design method lacks the theoretical basis for optimization

Traditional design methods generally compare several topological structures manually on the basis of several typical networks, and lack of theoretical basis for optimization, making it difficult for such methods to obtain optimal topological structures

[0005] 3) The computational complexity of the exhaustive method increases geometrically

The exhaustive method can design multi-source ship distribution network topology through combinatorial optimization, but the computational complexity increases geometrically, resulting in low optimization efficiency of this type of method

[0006] At the same time, the significant increase in the network scale of modern ship power systems also makes traditional topology design and exhaustive methods no longer applicable

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