Transverse shaft type tidal current energy power generation device and method based on pile column type offshore wind power equipment

Abstract

The invention provides a transverse shaft type tidal current energy power generation device and method based on pile column type offshore wind power equipment. The transverse shaft type tidal currentenergy power generation device comprises a tidal current energy transverse shaft power generation system for generating power through tidal current energy, and a wind-tide coupling electrical controlsystem used for controlling opening and closing of a power supply circuit of the tidal current energy transverse shaft power generation system. The wind-tide coupling electrical control system comprises a comprehensive control terminal and a wind driven generator, wherein the wind driven generator is connected with fan blades and used for achieving wind power generation. The comprehensive controlterminal is used for collecting voltage values of the output end of the tidal current energy transverse shaft power generation system and of the output end of the wind driven generator, and controlling a power supply circuit of the tidal current energy transverse shaft power generation system to be opened and closed according to deviation between the voltage value of the output end of the tidal current energy transverse shaft power generation system and the voltage value of the output end of the wind driven generator. The power vacancy space of offshore wind power related electrical equipmentis effectively utilized, the offshore energy utilization rate is increased, meanwhile, installation is conducted based on existing equipment design, and the corresponding capital construction, equipment and operation and maintenance cost is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of offshore wind power and ocean energy power generation, and in particular relates to a horizontal-axis tidal current energy power generation device and method based on pile-type offshore wind power equipment. Background technique [0002] In response to severe environmental problems brought about by climate warming, renewable energy technologies have developed rapidly in recent years. Due to the relatively abundant wind energy conditions in offshore waters, as well as the multiplier effect brought about by technology improvement and cost reduction, there has been a construction boom in offshore wind power in recent years, and the total installed capacity and number of offshore wind power projects have been rising year after year. For wind energy, the output power is unstable and cannot reach the rated power. The electrical equipment related to offshore wind power has a large power gap that has not been uti...

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Problems solved by technology

[0006] However, the power generation device disclosed in this utility model patent has the following disadvantages: in order to ensure strength and economy, the column of the offshore wind power generator is generally not less than 5m. If the vertical axis generator is directly placed on it, the diameter of the vertical axis water turbine will increase. It is very large, and it is difficult to self-start; at the same time, the vertical axis generator is directly set on the column. The generator is generally installed at the central axis, and the central axis is driven by the surrounding turbine blades to rotate. Due to the existence of the column, the distance between the turbine blades and the central axis The connection part needs to run through the entire column section, which is difficult to achieve in practice

[0008] However, the power generation device disclosed in this invention patent has the following disadvantages: the tidal current energy generator is directly arranged in the middle of the column under the sea surface, and a space needs to be hollowed out in the middle of the column of the offshore wind turbine, which requires high strength of the column as a whole, which is very difficult in actual situations. Difficult to realize; at the same time, under this design, the diameter of the vertical axis turbine cannot exceed the diameter of the column, and the size is small, which is uneconomical; in addition, the installation water depth of the vertical axis turbine equipment is relatively large, which is not conducive to maintenance in the later stage, and the operation and maintenance cost is high

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