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Thermal fuse protection of a form coil generator of a wind power plant

A technology for wind energy equipment and generators, which is applied in the field of monitoring coil contact parts in generators, blowing fuses, and wind energy equipment, and can solve problems such as faults in contact parts and generator fires

Inactive Publication Date: 2018-03-02
WOBBEN PROPERTIES GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this now results in a very large number of contact points for multi-pole ring generators, which correspondingly have the problem that they can be faulty.
This can cause a generator fire in the worst case

Method used

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  • Thermal fuse protection of a form coil generator of a wind power plant
  • Thermal fuse protection of a form coil generator of a wind power plant
  • Thermal fuse protection of a form coil generator of a wind power plant

Examples

Experimental program
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Embodiment Construction

[0042] figure 1 A wind energy installation 100 is shown with a tower 102 and a nacelle 104 . A rotor 106 with three rotor blades 108 and a spinner 110 is arranged on the nacelle 104 . During operation, the rotor 106 is brought into rotational motion by the wind and thus drives a generator in the nacelle 104 .

[0043] figure 2 A side view of the generator 130 is schematically shown. The generator has a stator 132 and an electrodynamic rotor 134 mounted rotatably relative to the stator, and is fastened with its stator 132 via journals 136 to a machine carrier 138 . The stator 132 has a stator carrier 140 and a stator lamination stack 142 , which forms the stator poles of the generator 130 and is fastened to the stator carrier 140 via a stator ring 144 . Electrodynamic rotor 134 has rotor pole shoes 146 , which form rotor poles and are mounted on journal 136 rotatably about rotational axis 152 via rotor carrier 148 and bearing 150 . The stator lamination stack 142 and the ...

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Abstract

The invention relates to a generator (300) of a gearless wind power plant, having a rotor and a stator, wherein at least the rotor or the stator has a safety fuse wire (310), for recognizing a local temperature increase, and wherein the safety fuse wire (310) has an electrically conductive material and the electrically conductive material melts upon reaching a predetermined temperature and causesan interruption of the electrical conductor as a result, in order to thereby recognize the local temperature increase.

Description

technical field [0001] The invention relates to a generator of a gearless wind energy installation and to a blown fuse for such a generator. Furthermore, the invention relates to a method for monitoring coil contact points in a generator. The invention also relates to a wind energy installation. Background technique [0002] Wind power plants are known and modern wind power plants are usually gearless, so that they have slow-running multipole generators. For example, there can be 96 or 192 poles or even more poles. If a coil is provided for each pole, which has to be in contact with at least one other coil for connection, a corresponding number of contact points results. Such contact points are basically always potential sources of faults. In the case of a small number of contact points, faults can be virtually eliminated by a precise final inspection and, if necessary, subsequent inspections. However, the risk of failure increases in the case of a very large number of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K11/25H02K7/18
CPCH02K11/25H02K7/1838H02H3/046H02P9/006
Inventor 约亨·勒尔
Owner WOBBEN PROPERTIES GMBH