Offshore wind energy and ocean tide energy combined power generation platform

Abstract

The invention discloses an offshore wind energy and ocean tide energy combined power generation platform, and belongs to power generation equipment. The upper side of a floating platform is provided with a vertical axis wind turbine, and the lower side of the floating platform is provided with a supporting tower cylinder assembly; a blower gearbox, a generator rotor, generator stator and a water power gearbox are sequentially assembled in the floating platform from top to bottom; the blower gearbox and the water power gearbox are connected with the generator rotor, a water power transmission shaft is mounted on the supporting tower cylinder assembly, a wind turbine power transmission shaft of the vertical axis wind turbine is connected with the blower gearbox, and a water power transmission shaft of the vertical axis wind turbine is connected with the water power gearbox; and linear wing water blades are mounted on the water power transmission shaft through a water turbine rotating shaft and a supporting beam, and a water turbine is mounted on the water turbine rotating shaft. According to the platform, offshore wind energy and ocean tide energy can do power generation work on the same power generation platform, and the beneficial effects that the structure is novel, reasonable and simple, the manufacturing cost is reduced, the generating capacity is large, and use is safe and reliable are achieved.

Description

technical field [0001] The invention belongs to power generation equipment, in particular to a joint power generation platform of offshore wind energy and ocean tidal current energy. Background technique [0002] At present, as a new type of pollution-free and clean energy, offshore wind power technology has been widely valued. The site selection of offshore wind farms generally requires a certain wind speed and strong wind force, and in this environment, seawater flows frequently, so offshore wind farms are also places where tidal energy resources are enriched. Correspondingly, the combination of offshore wind power development and tidal current energy utilization can more efficiently expand the power generation capacity of offshore wind farms and improve the overall economics of offshore wind power. [0003] In an offshore wind power and ocean wave energy combined power generation device and an offshore wind turbine-based plug-in wave energy power generation system (paten...

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Problems solved by technology

[0003] In an offshore wind power and ocean wave energy combined power generation device and an offshore wind turbine-based plug-in wave energy power generation system (patent number 201210313817.5), it is proposed to install a tidal current energy wind generator under the floating platform of the offshore wind turbine; a Offshore wind power and ocean tidal current energy combined power generation device (Patent No. 201510426864.4), which uses horizontal axis wind turbines and horizontal axis tidal current generators, but because offshore wind energy and tidal current energy are typical unstable energy sources, the flow direction is changeable, The technology of adding yaw devices to horizontal axis wind turbines is relatively mature, but for tidal current generators, it is relatively difficult to add yaw devices due to the need for underwater operations. Increased work difficulty for offshore operations

For the above shortcomings, the offshore wind power plant (Patent No. 201020629831.2) proposes that the water turbine and the wind turbine are connected to the vertical rotating shaft at the same time to make the generator run, but wind energy and tidal current energy are two very different energy forms, and the wind energy flow rate is fast. The energy density is small, the flow rate of tidal current energy is small, and the energy density is large. It is obviously unreasonable to connect the two generators on the same rotating shaft to achieve the same speed. The light one will reduce the energy utilization rate, and the serious one will cause damage to the rotating shaft and cause production accidents.

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