公开(公告)号：NO833993L

公开(公告)日：1984-05-09

申请号：NO833993

申请日：1983-11-02

Applicant: UNITED TECHNOLOGIES CORP

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

IPC: F03D7/04 ,  F03D7/02 ,  F03D

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.

公开(公告)号：NO833993A

公开(公告)日：1984-05-09

申请号：NO833993

申请日：1983-11-02

Applicant: UNITED TECHNOLOGIES CORP

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

IPC: F03D7/04 ,  F03D7/02 ,  F03D

CPC classification number: F03D7/0224 ,  F05B2220/706 ,  F05B2260/74 ,  F05B2270/328 ,  Y02E10/723 ,  Y02E10/725