Fault diagnosis device and method for wind power converter

A wind power converter and fault diagnosis technology, applied in the measurement of electrical variables, instruments, measurement of electricity and other directions, can solve problems such as difficulty in fault diagnosis and fault handling, misjudgment, etc., to achieve accurate fault diagnosis results, improve efficiency, and avoid difficult problems. The effect of diagnosing faults

Active Publication Date: 2020-06-26
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the fault signal will be different due to the different wind power converters and the different components of the wind power converter from which the fault signal originates, and the experience level of different maintenance personnel is also different, which brings great challenges to fault diagnosis and fault handling. Difficulty
[0004] In addition, there is no obvious logical relationship among the multiple fault signals, and it is easy to make wrong judgments when considering each fault signal separately, which also brings difficulties to fault diagnosis and fault handling

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fault diagnosis device and method for wind power converter
  • Fault diagnosis device and method for wind power converter
  • Fault diagnosis device and method for wind power converter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0049] Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like numerals refer to like parts throughout. The embodiments are described below in order to explain the present invention by referring to the figures.

[0050] figure 1 A schematic diagram showing a fault diagnosis device applied to a wind power converter with distributed control according to an embodiment of the present invention.

[0051] Such as figure 1 As shown, the impeller 101, the permanent magnet generator 102, the machine-side circuit breaker 103, the machine-side rectifier 104, the brake unit 105, the grid-side inverter 106, the unit's own power circuit 107, the grid-side circuit breaker 108, and the grid Connect sequentially. The wind power converter in this embodiment at least includes: a generator-side rectifier 104 , a braking unit 105 , and a grid-side inverter 106 . The generator-side rectifier 104 ,...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a fault diagnosis device and method for a wind power current converter, and the device comprises a fault collection module which is used for obtaining a fault signal of the wind power current converter; a time sequence generation module which is used for adding a time sequence to the fault signal obtained by the fault collection module; an expert database module which is used for carrying out the fault diagnosis of the fault signal with the time sequence. The device and method can reduce or avoid the shortcomings caused by the judgment of a maintainer through experience. The device and method can sequentially analyze the fault signals according to the time sequence, so as to diagnose the fault and find the cause of the fault more accurately. The device and method can select out a representative fault signal for analysis at first according to the time sequence, thereby quickly finding out the cause of the fault.

Description

technical field [0001] The present invention generally relates to the technical field of wind power converters, and more specifically relates to a fault diagnosis device and a fault diagnosis method for wind power converters. Background technique [0002] Wind power converters are generally controlled by distributed controllers or centralized controllers. Whenever a wind power converter fails and shuts down, the distributed controller or centralized controller will obtain multiple fault signals from multiple components of the wind power converter. [0003] In order to diagnose a fault and perform corresponding treatment, maintenance personnel need to diagnose the cause and / or type of the fault based on experience. However, the fault signal will be different due to the different wind power converters and the different components of the wind power converter from which the fault signal originates, and the experience level of different maintenance personnel is also different, w...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 高瑞刘利
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap