Topology Design Method for Offshore Wind Farms Considering Reliability Constraints

Abstract

The invention discloses an offshore wind power plant topology design method considering a reliability constraint. A search result of each step of standard Kruskal is re-constrained, and auxiliary lines are added for connection lines exceeding current-carrying capacity limit to ensure the uniformity of current-carrying capacity of the lines; a specific thought is that the results obtained by standard Kruskal search are analyzed, which line with a maximum influence on the current-carrying capacity of a topology is found out, and then other lines are selected or the auxiliary lines are added for replacing the line, so that finally all the lines in the topology can meet the requirement of the current-carrying capacity; for the wind power plant topology obtained by a standard Kruskal algorithm, the number of cables in a wind power plant is remarkably reduced in structure, but the problems of reliability, cable section and the like are introduced, so that the wind power plant topology does not have advantages in comparison with a typical arrangement mode in economic indexes; and the method gives consideration to relatively short topology connection lines and good reliability, and technical indexes and economic indexes of topology design are remarkably superior to those of an original conventional offshore wind power plant topology design structure.

Description

technical field [0001] The invention belongs to the field of power supply planning, and in particular relates to a topology design method for offshore wind farms considering reliability constraints. Background technique [0002] With its clean and low-cost characteristics, wind power has become one of the important utilization methods of renewable energy, and has attracted more and more attention from various countries. Compared with land wind power, offshore wind power has many advantages such as no need to occupy land resources, high energy efficiency, stable operation, and can be built in coastal economically developed areas to facilitate digestion nearby. trend. But at the same time, the utilization of offshore wind power is technically difficult, and the investment and maintenance costs are high, so the technical research on offshore wind power is particularly important. In the current world, the offshore wind farms that have been put into operation or are under const...

AI Technical Summary

Problems solved by technology

In the future when the construction scale of offshore wind farms tends to be larger, this design method will rely more and more on the level of designers, and the errors that may be caused by different designs will also become larger and larger.

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