Low-speed half direct-driven marine current energy power generation device

A power generation device, semi-direct drive technology, applied in ocean energy power generation, renewable energy power generation, hydropower generation, etc., can solve the problems of complex design of pitch control mechanism, shortening the life of the main shaft, increasing the cantilever load of the hub main shaft, etc. Effect of small hindrance, simplification of execution structure, and reduction of spindle load

Active Publication Date: 2012-02-08
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the narrow space of the hub of the ocean current power generation device, the design of the pitch control mechanism is extremely complicated. At the same time, placing the drive motor and actuator in the hub also increases the cantilever load of the hub spindle, which will greatly shorten the life of the spindle

Method used

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  • Low-speed half direct-driven marine current energy power generation device
  • Low-speed half direct-driven marine current energy power generation device
  • Low-speed half direct-driven marine current energy power generation device

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Embodiment Construction

[0022] Refer to attached figure 1 and image 3 . figure 1 and image 3 Shown in is the first embodiment of the present invention, a low-speed semi-direct-drive ocean current energy generating device, including blade 1, hub 2, nacelle 3 and pitch-changing mechanism, blade 1 is installed on hub 2, and pitch The actuator of the mechanism is arranged in the hub 2 , and the driving mechanism of the pitch control mechanism is arranged in the nacelle 3 .

[0023] The generator 4 is located inside the nacelle 3, the stator 42 of the generator 4 is fixed on the inner bottom surface of the nacelle 3, the rotor 41 of the generator 4 is sleeved on the column 31 on the inner bottom surface of the nacelle 3, and the rotor 41 of the generator 4 has an axis The direction is the same as the axial direction of the column 31 , the rotor 41 of the generator 4 can rotate around the column 31 in the circumferential direction, and the axial direction of the rotor 41 of the generator 4 is perpendi...

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Abstract

The invention belongs to the field of new energy power generation, and in particular relates to a low-speed half direct-driven marine current energy power generation device. The power generation device comprises an impeller, a hub, a cabin, a variable propeller pitch mechanism and a generator; a rotor of the generator is fixed on an upright post at the bottom in the cabin; and the axial direction of the rotor of the generator is vertical to the axial direction of a main shaft of the impeller. The main shaft of the impeller is in transmission with the rotor of the generator by adopting a pair of conical gears. The main shaft is provided with a through hole in the axis direction, a driving mechanism of the variable propeller pitch mechanism is positioned in the cabin, a driving rod of the driving mechanism passes through the through hole of the main shaft and enters the hub, and the driving rod is connected with an execution mechanism of the variable propeller pitch mechanism positioned in the hub. By adopting the transmission scheme of the pair of conical gears, the installation mode of the generator is changed from a common horizontal installation mode to a vertical installation mode, so that the stream approaching section area of the cabin is effectively reduced and the blocking effect of the cabin on seawater flow is reduced.

Description

technical field [0001] The invention belongs to the field of new energy power generation, and in particular relates to a low-speed semi-direct drive ocean current power generation device. Background technique [0002] The development of the global industrialization process has increased the demand for energy, and the excessive consumption of traditional fossil energy has also caused a series of economic and social problems. The development and utilization of green renewable energy has become a new development trend. Ocean current energy has the advantages of large reserves, renewable, strong periodicity and predictability, and high energy density. The development and utilization of ocean current energy has been valued by countries all over the world, and great progress has been made. Most of the prototypes are already in the sea trial stage. [0003] Horizontal axis ocean current power generation technology is similar to wind turbine power generation technology, but unlike w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03B13/14F03B11/06
CPCY02E10/38Y02E10/226Y02E10/20Y02E10/30
Inventor 刘宏伟李伟林勇刚徐全坤石茂顺黄炜
Owner ZHEJIANG UNIV
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