Windmill rotor power regulation through self actuated leading edge spoiler

Tewari, SK (1993) Windmill rotor power regulation through self actuated leading edge spoiler. Technical Report. National Aerospace Laboratories, Bangalore, India.

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    Abstract

    A concept is proposed for achieving control on the power developed by windmill rotors in a wide range of wind speeds. The leading edge part of the blade is allowed to deflect in high winds. This results in a stalled rotor which delivers regulated power. Early configurations based on this concept of Self-actuated Leading Edge Spoiler (SLES) were tested in simulated winds in the range: 5-17.5 m/s. The results indicate a feasibility of achieving satisfactory control on rotor output using relatively simple arrangements. One configuration was implemented on a 7.5m diameter rotor of an innovative wind pump and it has operated in the field for over five years. Several research possibilities are suggested to exploit the potential of this new concept.

    Item Type: Proj.Doc/Technical Report (Technical Report)
    Uncontrolled Keywords: Configuration;Innovative potential;Streams stressing; Implemented;Rotor
    Subjects: AERONAUTICS > Aerodynamics
    Division/Department: Wind Energy Programme
    Depositing User: Ms. Alphones Mary
    Date Deposited: 12 Jan 2012 14:10
    Last Modified: 12 Jan 2012 14:10
    URI: http://nal-ir.nal.res.in/id/eprint/10220

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