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Method for determining faults in a generator, and generator test system

A technology for checking systems, generators, used in motor generator testing, monitoring of wind turbines, motors, etc., to solve problems such as non-payment, wind energy equipment not feeding power, etc.

Inactive Publication Date: 2019-09-13
WOBBEN PROPERTIES GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the operator of the wind energy installation does not receive any payment for not feeding in the power

Method used

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  • Method for determining faults in a generator, and generator test system
  • Method for determining faults in a generator, and generator test system
  • Method for determining faults in a generator, and generator test system

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Embodiment Construction

[0042] figure 2 A schematic illustration of a wind energy installation according to the invention is shown. The wind energy plant has a tower 102 , a nacelle 104 , a rotor 106 with three rotor blades 108 which can be set in motion by the wind and drive a generator 200 . The rotor of generator 200 is coupled to aerodynamic rotor 106 of the wind energy installation. The generator is preferably designed as a synchronous generator. Optionally, the generator 200 can be configured as a separately excited synchronous generator.

[0043] image 3 A schematic diagram showing a fault finding when the ground of the generator is short-circuited. The generator 200 to be investigated, in particular the stator of the generator, has a plurality of stator coils S1-S5 so that measurements can be carried out there, ie at the winding ends at any point between the coils at the measuring points MP1-MP5 . A current source 300 is provided between the ground E and the first terminal 1U1 . The ...

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Abstract

A method for determining faults in a stator of a generator, in particular a synchronous generator of a wind energy installation, is therefore provided. The stator has a plurality of stator coils (S1-S5). A current source (300) for generating a current flow through the winding of the generator is connected. A magnetic field which is generated by stator coils (S1-S5) of the generator is captured bya means (400) for capturing a magnetic field. A position of a fault is determined by identifying those stator coils (S1-S5) which do not generate a magnetic field.

Description

technical field [0001] The invention relates to a method for detecting faults on a generator and to a generator inspection system. Background technique [0002] For example, in the case of generators for wind energy installations, it should be possible to check the mode of operation of the generator even in the installed state. In particular, it relates to improving fault finding in the installation of generators of wind power installations, in particular synchronous generators. [0003] In generators of wind energy installations, various electrical faults can occur. [0004] Figure 1A A schematic diagram showing a ground short circuit in a generator. The generator has different stator coils. The generator can be coupled to the rectifier via terminal 1U1. The stator winding can be connected in the star point via connection point 1U2. [0005] A ground short is an unwanted and conductive connection of a phase (outer conductor or neutral conductor / neutral) to ground or a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/34
CPCG01R31/346Y02E10/72F03D17/00G01R33/02G01R31/343H02K11/20
Inventor 斯特凡·比勒马西亚斯·詹森
Owner WOBBEN PROPERTIES GMBH