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Method and system for deriving wind speed in a stall controlled wind turbine

A wind turbine, stall-type technology, applied in the control of wind turbines, monitoring of wind turbines, wind turbines, etc.

Inactive Publication Date: 2009-10-21
SOUTHWEST WINDPOWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Wind speed information can be used to improve cost efficiency of small wind turbines

Method used

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  • Method and system for deriving wind speed in a stall controlled wind turbine
  • Method and system for deriving wind speed in a stall controlled wind turbine
  • Method and system for deriving wind speed in a stall controlled wind turbine

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Embodiment Construction

[0024] Exemplary embodiments of the present invention will now be described with reference to the accompanying drawings.

[0025] now refer to figure 2 , showing the various wind turbine components (which can be used in figure 1 A schematic block diagram showing a cross-sectional view of an exemplary wind turbine according to an embodiment of the invention, including features relevant to the method and system of the invention. Such as figure 2 As shown, wind turbine 20 includes or is coupled to a processor 22 having or having access to a data repository 23, such as a database. The wind turbine 20 optionally includes or is coupled to a temperature sensor 21 .

[0026] Figure 3A An exemplary flowchart illustrating a method of operation of an embodiment of the present invention, where mapping of the tip speed to wind speed ratio (mapping of TSR) may be used to determine wind speed. In one embodiment, the methods and systems of the present invention include using experime...

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PUM

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Abstract

Methods and systems for improving stall controlled wind turbine effectiveness by accurately determining wind speed without using an anemometer or other independent wind speed measuring device. Wind speed may be determined, among other methods, by tracking a mapped TSR model with respect to an operating stall controlled wind turbine in a given TSR range; decreasing a Ramp Start RPM value upon reaching a maximum desired power level and by following a mapped RPM into ramp (the control going into RS) for the desired wind speed range; upon reaching a desired RPM level, raising the RPM with power; and / or using periodic unloading of the rotor. The wind speed information may be utilized to control wind turbine parameters.

Description

[0001] Associate application [0002] This application claims U.S. Provisional Patent Application Serial No. 60, entitled "Method and System for Deriving Wind Speed ​​in a Stall Controlled Wind Turbine," filed October 20, 2006 Priority of / 853,036. This application is also related to U.S. Patent Application Serial No. 11 / 487,392, filed July 17, 2006, entitled "Wind Turbine and Method of Manufacture" and to U.S. Patent Application Serial No. 11 / 487,392, filed July 17, 2006, entitled US Patent Application Serial No. 11 / 487,343 for "Stall Controller and Triggering Condition Control Features for a Wind Turbine." The entire content of each of the above applications is incorporated into this specification by reference. technical field [0003] Embodiments of the invention relate to the field of wind turbines, and in particular to methods for improving stall-type wind turbine performance by obtaining wind speed in a cost-effective manner and using this information to limit loads i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
CPCF05B2270/325Y02E10/723Y02E10/722F03D11/0091Y02E10/72F03D7/043F03D7/0256F03D17/00F03D7/045F05B2270/32
Inventor 大卫·卡莱
Owner SOUTHWEST WINDPOWER
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