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Offshore wind turbine generator wake flow calculation method considering sea wave height influence

A technology for offshore wind power and calculation methods, which can be used in calculations, computer-aided design, complex mathematical operations, etc., and can solve problems such as large deviations

Active Publication Date: 2020-11-24
大唐三亚未来能源研究所有限公司
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for calculating the wake of an offshore wind turbine considering the influence of wave height, so as to solve the problem that there is a large deviation between the calculation result of the wake and the actual situation in the prior art

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  • Offshore wind turbine generator wake flow calculation method considering sea wave height influence
  • Offshore wind turbine generator wake flow calculation method considering sea wave height influence
  • Offshore wind turbine generator wake flow calculation method considering sea wave height influence

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Embodiment Construction

[0030] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0031] ginseng figure 1 As shown, this embodiment provides a method for calculating the wake of an offshore wind turbine considering the influence of wave height, including the following steps:

[0032] Step one, data collection. The wind speed data and wind direction data at the hub height of the offshore wind turbine are obtained based on the wind speed sensor and the wind direction sensor, and the wave height data at the sea surface height of the offshore wind turbine are obtained based on the wave height sensor; among them, the sampling frequency of the wind speed sensor and the wind direction sensor is above 1HZ, The sampling frequency of the sea wave height sensor ...

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Abstract

The invention relates to an offshore wind turbine generator wake flow calculation method considering sea wave height influence. The method comprises the steps of data acquisition, data fitting, sea surface roughness calculation, turbulence intensity calculation, wake flow attenuation coefficient calculation and offshore wind turbine generator wake flow calculation. The method can solve the problemof large deviation between the wake flow calculation result and the actual situation, has universality, is suitable for offshore wind turbine generators of various brands and models, and is suitablefor offshore and pelagic areas of various offshore distances.

Description

technical field [0001] The invention belongs to the technical field of wind power generation calculation, and in particular relates to a calculation method for wake flow of an offshore wind turbine considering the influence of wave height of sea waves. Background technique [0002] The wake of offshore wind turbines is an important factor affecting the micro-site selection and power generation calculation of offshore wind farms. Offshore wind turbines located in the upwind direction will absorb wind energy and generate wakes during operation, resulting in attenuation of wind speed in the downwind direction and loss of power generation. Accurate calculation of the wake of offshore wind turbines is crucial to the planning and design of offshore wind farms. [0003] The existing technologies are all calculation methods of wake flow of onshore wind turbines, such as Jensen model, Larsen model and other calculation methods. The vegetation and coverage of the land are relatively...

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Application Information

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IPC IPC(8): G06F30/20G06F17/11G06F113/06G06F113/08
CPCG06F30/20G06F17/11G06F2113/06G06F2113/08Y02E10/72
Inventor 张双益张勋奎戴成伟李春雨肖启标王虎陈德明郝洪亮曹子丕
Owner 大唐三亚未来能源研究所有限公司
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