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Tidal current energy electricity generation device and control method thereof

A power generation device and tidal current energy technology, which is applied to ocean energy power generation, safety devices, engine components, etc., can solve the problems of complex structure and high cost, and achieve the effects of simple structure, cost saving, and improvement of development utilization rate

Active Publication Date: 2014-01-15
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method requires a huge yaw mechanism, which makes the whole device rotate 180 degrees, and the structure is complicated and the cost is high

Method used

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  • Tidal current energy electricity generation device and control method thereof
  • Tidal current energy electricity generation device and control method thereof

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Embodiment Construction

[0028] refer to figure 1 , figure 1 Shown is a schematic structural view of the first embodiment of a tidal current energy generating device of the present invention. In this embodiment, the tidal current energy generating device includes a first impeller 11, a second impeller 12, a nacelle 2, a generator 30, a tower 4, a flow velocity sensor 5, a controller 6, a first gear box 81 and a second Two gear boxes 82 , the nacelle 2 is fixed on the tower 4 , and the first impeller 11 and the second impeller 12 are respectively located at two ends of the nacelle 2 . The engine room 2 is in a sealed state, isolating the external sea water from the components inside the engine room 2 .

[0029] Both the first gear box 81 and the second gear box 82 are fixed on the inner wall of the nacelle 2 . The rotating shaft of the first impeller 11 extends into the nacelle 2 and is coupled with one end of the first gear box 81 ; the other end of the first gear box 81 is coupled with the inner r...

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Abstract

The invention relates to a tidal current energy electricity generation device which comprises an engine room, an electric generator, a tower, a current speed and direction sensor, a controller, a first brake, a second brake, a first impeller and a second impeller. The engine room is fixed on the tower, the first impeller and the second impeller are arranged at the two ends of the engine room respectively, a rotating shaft of the first impeller stretches into the room engine and is in linkage with an inner rotor of the electric generator, a rotating shaft of the second impeller stretches into the engine room and is in linkage with an outer rotor of the electric generator, the first brake is arranged at the position of an input rotating shaft of the inner rotor, the second brake is arranged at the position of an input rotating shaft of the outer rotor, and the controller is respectively and electrically connected with the current speed and direction sensor, the first brake and the second brake. A control method of the tidal current energy electricity generation device comprises the steps of controlling the brake state of the first brake and the brake state of the second brake according to a tidal current speed signal and a tidal current direction signal detected by the current speed and direction sensor, and achieving the aim of capturing the tidal current energy in forward and reverse tidal currents. According to the tidal current energy electricity generation device, a variable pitch or yaw mechanism is eliminated, the structure is simple, the cost is saved, a control program is simple, and the control precision and the energy utilization rate are improved.

Description

technical field [0001] The invention belongs to the field of ocean energy power generation, and in particular relates to a tidal current energy power generation device and a control method thereof. Background technique [0002] Tidal current energy belongs to the category of ocean energy, and is a new type of energy with strong predictability, huge reserves, and great development and utilization value. At present, tidal current energy generating devices have been widely used to develop and utilize tidal current energy. [0003] The tidal current energy generation device is divided in terms of structure, and there are mainly two structural types: vertical axis type and horizontal axis type. The vertical-axis tidal current energy generating device can utilize the tidal currents in different directions, but its impellers have low efficiency in capturing tidal current energy, and are not suitable for high-power generator sets. The impeller of the horizontal-axis tidal current ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03B13/26F03B15/00
CPCY02E10/30
Inventor 徐全坤刘宏伟李伟林勇刚石茂顺
Owner ZHEJIANG UNIV
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