Electrode lightning-termination device for wind turbine blades
A technology for wind turbines and blades, which is applied in the field of electrode lightning-termination devices for blades of wind turbines, and can solve problems such as blade breakdown
Active Publication Date: 2021-03-26
CHINA ELECTRIC POWER RES INST +2
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Problems solved by technology
[0004] In view of this, the present invention proposes an electrode lightning-termination device for wind turbine blades, aiming to solve the problem of blade breakdown caused by the failure of the wind turbine blade lightning-termination system in the prior art
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[0029] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0030] refer to figure 1 , the electrode air-termination device for wind turbine blades according to the embodiment of the present invention includes: an air...
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The invention provides an electrode lightning reception device for wind turbine unit blades, comprising a lightning receptor, a lower guide and a shielding device, wherein the lower guide is arrangedin a wind turbine unit blade, one end of the lower guide is connected with the lightning receptor at the blade tip, the lower guide is used for guiding a lightning bolt into the earth, the shielding device is arranged on the front and back of the wind turbine unit blade, one end of the shielding device is connected with the lightning receptor, and the shielding device is used for shielding surfaceelectric field discharge effect of the lower guide. The shielding device of the electrode lightning reception device is arranged on the front and back of the wind turbine unit blade, one end of the shielding device is connected with the lightning receptor at the blade tip, lightning current is entirely conducted when approaching the wind turbine unit blade, surface discharge of the lower guide inside can be effectively shielded, and therefore, the adverse outcome is effectively avoided that lightning stroke on the blade is caused due to lightning receptor failure that is due to surface discharge of the lower guide of an existing lightning-proof structure.
Description
technical field [0001] The invention relates to the technical field of lightning protection for wind turbine blades, in particular to an electrode lightning-termination device for wind turbine blades. Background technique [0002] As a renewable energy source, wind power has developed rapidly in recent years. With the development of new energy technology, the installed capacity of wind turbines is increasing day by day, and the size of a single wind turbine is also increasing. The existing Vestas 4MW wind turbine has a nacelle height of 100m and an impeller diameter of 80m. In thunderstorm weather, it is very easy to be struck by lightning and damage its normal operation, especially at this stage, wind turbines are often installed on open plains or mountain tops. The operation results show that the lightning damage to the wind turbine blades in Denmark has accounted for more than 40% of the lightning damage to the wind turbines; the lightning strike accident rate of the Ger...
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IPC IPC(8): F03D80/30
CPCF03D80/30Y02E10/72
Inventor 贺恒鑫顾建伟陈维江时卫东殷禹边凯赵晓路杨科石可重何天宇黄胜鑫张兆华向念文李志军
Owner CHINA ELECTRIC POWER RES INST