中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

54 records (took 0.051 seconds)

    BLADE PITCH ANGLE CONTROL FOR LARGE WIND TURBINES
    4.
    发明专利
    BLADE PITCH ANGLE CONTROL FOR LARGE WIND TURBINES 未知

    公开(公告)号：ZA838157B

    公开(公告)日：1984-06-27

    申请号：ZA838157

    申请日：1983-11-01

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： HARNER KERMIT IVAN ,  NIESSEN FRANK RICHARD ,  SHERMAN ROBERT

    IPC: F03D7/04 ,  F03D7/02 ,  F03D ,  H02K

    Abstract: A blade pitch angle control system for a wind turbine includes an improved control means (95) for providing a minimum pitch angle reference signal indicative of desired blade pitch at wind velocities less than rated. The control means includes means (35 and 30) for providing signals indicative of generated (output power or torque and the rotational frequency of the wind turbine rotor. The output and rotor speed signals are input to a function generator which, in rsponse to such signals, provides a signal indicative of the minimum pitch angle.

    7.
    发明专利
    未知

    公开(公告)号：NO161190C

    公开(公告)日：1989-07-12

    申请号：NO833993

    申请日：1983-11-02

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： HARNER KERMIT IVAN ,  NIESSEN FRANK RICHARD ,  SHERMAN ROBERT

    IPC: F03D7/04 ,  F03D7/02

    Abstract: A blade pitch angle control system for a wind turbine includes an improved control means (95) for providing a minimum pitch angle reference signal indicative of desired blade pitch at wind velocities less than rated. The control means includes means (35 and 30) for providing signals indicative of generated (output power or torque and the rotational frequency of the wind turbine rotor. The output and rotor speed signals are input to a function generator which, in rsponse to such signals, provides a signal indicative of the minimum pitch angle.

    BLADE PITCH ANGLE CONTROL FOR LARGE WIND TURBINES
    9.
    发明专利
    BLADE PITCH ANGLE CONTROL FOR LARGE WIND TURBINES 未知

    公开(公告)号：CA1234543A

    公开(公告)日：1988-03-29

    申请号：CA439908

    申请日：1983-10-28

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： HARNER KERMIT I ,  NIESSEN FRANK R ,  SHERMAN ROBERT

    IPC: F03D7/04 ,  F03D7/02 ,  F03D11/00

    Abstract: A blade pitch angle control system for a wind turbine includes an improved control means (95) for providing a minimum pitch angle reference signal indicative of desired blade pitch at wind velocities less than rated. The control means includes means (35 and 30) for providing signals indicative of generated (output) power or torque and the rotational frequency of the wind turbine rotor. The output and rotor speed signals are input to a function generator which, in response to such signals, provides a signal indicative of the minimum pitch angle. H1031

Patent Agency Ranking