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Low-wind speed starting system of hydraulic wind generating set

A technology for wind turbines and starting systems, which is applied to wind turbines, wind turbine control, wind power generation, etc., can solve problems such as insufficient startup of the entire system, and achieve the effects of ensuring power generation quality, avoiding impact, and improving utilization.

Active Publication Date: 2018-06-08
LANZHOU UNIVERSITY OF TECHNOLOGY +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the conventional hydraulic wind turbine is not enough to start the whole system to generate electricity when the wind speed is low, the present invention proposes a brand new low wind speed start-up system for the hydraulic wind turbine

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  • Low-wind speed starting system of hydraulic wind generating set
  • Low-wind speed starting system of hydraulic wind generating set
  • Low-wind speed starting system of hydraulic wind generating set

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Embodiment Construction

[0019] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] combine figure 1 As shown, the low wind speed start-up system of the hydraulic wind power generating set of the present invention includes a main circulation system 1 , an oil supply system 2 , a wind wheel 3 and a generator 4 .

[0021] The main circulation system 1 includes a hydraulic pump 11 , a hydraulic motor 12 , a high-pressure oil circuit 13 , a low-pressure oil circuit 14 , a one-way valve 15 , and a first throttle valve 16 and a second throttle valve 17 . In this embodiment, the hydraulic pump 11 is a quantitative pump, and the input shaft of the hydraulic pump 11 is connected to the wind wheel 3 . The hydraulic motor 12 is a variable displacement motor, and the output shaft of the hydraulic motor 12 is connected with the generator 4 to drive the generator 4 to generate electricity.

[0022] The ...

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Abstract

The invention belongs to the technical field of wind power generation and discloses a low-wind speed starting system of a hydraulic wind generating set to solve the problem that a whole conventional hydraulic wind generating set cannot be started to generate power when the wind speed is relatively low. The low-wind speed starting system comprises a main circulating system and an oil supplementingsystem, wherein a first throttling valve and a second throttling valve are arranged between a high-pressure oil path and a low-pressure oil path of the main circulating system in parallel; and the oilsupplementing system is internally provided with an oil supplementing pump, an oil returning path, an oil returning control valve and an oil returning overflowing valve, the oil supplementing pump isconnected with the low-pressure oil path through an oil supplementing path, and the oil returning control valve and the oil returning overflowing valve are connected in parallel and located in the oil returning path. The low-wind speed starting system of the hydraulic wind generating set can achieve stable and smooth starting at the low wind speed, and therefore the utilization rate of wind energy is increased, and the power generating quality is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of wind power generation, and in particular relates to a low wind speed starting system for a hydraulic wind power generator set. Background technique [0002] With the depletion of traditional energy sources in the world in recent years, new energy sources have entered the energy stage one after another. The rapid development of wind power generation has made due contributions to the depletion of world energy and environmental crisis. Therefore, the new hydraulic wind turbine equipment has received unprecedented attention, and it has been tested or put into use all over the world, and will gradually replace the traditional mechanical gear transmission generator set. [0003] Among them, starting at low wind speed is one of the important technical issues in the actual use of the new hydraulic wind turbine, and it is also a necessary requirement for the normal operation of the generator. However, when the n...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/02
CPCF03D7/026F05B2270/604Y02E10/72
Inventor 刘增光杨国来李仁年何琪功魏列江杨瑞安建军胡振宇陶雁华赵宇阳
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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