Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Ring generator

a generator and ring technology, applied in the direction of machines/engines, mechanical equipment, liquid fuel engines, etc., can solve the problem of increasing the temperature of the stator

Inactive Publication Date: 2011-10-27
WOBBEN ALOYS
View PDF12 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0010]According to one embodiment, cooling of a ring generator is improved, and made more efficient.

Problems solved by technology

A rotary movement of the rotor relative to the stator generates an alternating magnetic field in the laminated core, which in turn leads to a flow of current in the stator windings and results in an increase in the temperature of the stator, due to losses.

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
  • Ring generator
  • Ring generator
  • Ring generator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0069]It is to be noted that the same references can denote possibly similar, non-identical elements of different embodiments.

[0070]The stator ring 2 shown in FIG. 1 is of a ring-shaped configuration and forms a part of a ring generator with an internal rotor. The stator ring 2 has an inner carrier ring 4, a central carrier ring 6 and an outer carrier ring 8. Provided between the inner and outer carrier rings 4, 6 is an active cooling portion 10 while a passive cooling portion 12 is provided between the central and outer carrier rings 6, 8. As illustrated, the stator ring 2 is cast in one piece including the inner, central and outer carrier rings 4, 6, 8 and active and passive cooling portions 10, 12, the material used being aluminium.

[0071]The inner, central and outer carrier rings 4, 6, 8 provide for stability and stiffness by virtue of their substantially solid nature. To guide a magnetic field, a suitable magnetically well-conductive laminated core carrying stator windings is to...

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

A ring generator of a wind power installation is provided comprising a stator having a peripherally extending stator ring for receiving stator windings and a rotor mounted rotatably about an axis of rotation relative to the stator, wherein the stator ring has cooling passages for cooling the stator by an air flow. A ring generator of a wind power installation is also provided having a stator, a peripherally extending stator ring for receiving stator windings, a rotor mounted rotatably relative to the stator and a stator bell connected to the stator ring for providing a pressure chamber with an increased or reduced pressure for providing an air flow through and / or along the stator and / or rotor for cooling the ring generator, wherein the stator bell has at least one fan opening provided with a fan.

Description

BACKGROUND[0001]1. Technical Field[0002]The present disclosure concerns a ring generator of a wind power installation. In addition the present disclosure concerns a method of controlling a wind power installation and further concerns a wind power installation.[0003]2. Description of the Related Art[0004]A wind power installation converts mechanical work taken from the wind into electric energy by means of an electric generator. In that respect a ring generator is a slowly rotating generator which manages without a transmission between the rotor of the generator and the mechanical rotor assembly which has rotor blades. For that purpose the ring generator has a multiplicity of poles. The number of poles can be of the order of magnitude of 20 up to 84 poles and even more. In that respect the ring generator is of a comparatively large diameter in comparison with its axial extent. For example the ring generator of a modern wind power installation of 7 or more megawatts nominal power is o...

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 Applications(United States)
IPC IPC(8): F03D9/00
CPCF03D9/002F04D29/582H02K5/20Y02E10/722Y02E10/721H02K7/1838H02K9/04Y02E10/725F03D9/25Y02E10/72H02K5/207H02K9/18F03D9/00F03D17/00F03D80/60
Inventor GUDEWER, WILKO
Owner WOBBEN ALOYS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com