Method for evaluating influence of offshore wind plant on detection efficiency of ground wave beyond-visual-range radar

Abstract

The invention discloses a method for evaluating the influence of an offshore wind plant on the detection efficiency of ground wave beyond visual range radar. The method comprises the following steps:according to ground wave over-the-horizon radar parameters and a pre-selected area of a wind power plant, carrying out scene analysis, and screening out objects needing key analysis; establishing a fan electromagnetic model according to the provided parameters of a wind turbine generator, and realizing establishment of a single fan electromagnetic model; according to longitude and latitude coordinates of a fan of a pre-built wind power plant and radar relative position information, building an array in FEKO electromagnetic calculation software, building a scene model, and analyzing shielding influences; calculating RCS changes of a single fan device in different states; analyzing the influence of Doppler frequency; deriving a multipath effect theoretical formula; enabling scene actual measurement to be equivalent to electromagnetic environment noise data, and evaluating the influence range of the wind power plant. By means of electromagnetic simulation calculation, theoretical derivation, actual measurement scene equivalence and the like, a quantitative evaluation result is given.

Description

technical field [0001] The invention belongs to the field of electromagnetic compatibility between wind farms and radar systems, and in particular relates to an evaluation method for the influence of offshore wind farms on the detection efficiency of ground wave over-the-horizon radar. Background technique [0002] In recent years, the number and scale of my country's wind farm construction plans have gradually increased, especially in coastal areas where offshore wind power projects are being vigorously developed. The sea is rich in wind resources and is the preferred location for building wind farms. However, the wind farm covers a large area, the size of the wind turbine is large, and the speed of the wind blade is high, which may change the maritime target environment of the surrounding shore-based radar. For sea detection radar, object occlusion and diffraction caused by wind farms are very unfavorable factors for radar. At present, the United States, the European Uni...

AI Technical Summary

Problems solved by technology

However, domestic research on the measurement and measurement of wind farms affecting the electromagnetic environment and radar performance started late, and the technical means are not perfect enough to provide sufficient theoretical and technical support for the planning and construction of offshore wind farms.

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