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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
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.
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公开(公告)号：FI77092C
公开(公告)日：1989-01-10
申请号：FI834074
申请日：1983-11-07
Applicant: UNITED TECHNOLOGIES CORP
Inventor： HARNER KERMIT IVAN , NIESSEN FRANK RICHARD , SHERMAN ROBERT
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公开(公告)号：FI834074A0
公开(公告)日：1983-11-07
申请号：FI834074
申请日：1983-11-07
Applicant: UNITED TECHNOLOGIES CORP
Inventor： HARNER KERMIT IVAN , NIESSEN FRANK RICHARD , SHERMAN ROBERT
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.
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公开(公告)号：BR8604681A
公开(公告)日：1987-06-23
申请号：BR8604681
申请日：1986-09-29
Applicant: UNITED TECHNOLOGIES CORP
Inventor： NIESSEN FRANK RICHARD , SCHNEIDER ROY WILFRIED
Abstract: An improved slave propeller synchrophaser and mode logic for a multi-propeller aircraft is disclosed. A designated master propeller has at least one associated slave propeller which has its speed and phase controlled with respect to the master by initially controlling the speed of the slave propeller to within a selected constant number of RPM of the master so that the master and slave propellers are periodically in phase and then switching to phase control for controlling the speed of the slave propeller in the presence of a phase difference signal having an absolute magnitude less than a selected absolute magnitude. A selected phase difference relationship between the master and the slave may thus be effected with minimum transient effect on the speed of the slave propeller.
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公开(公告)号：IN158707B
公开(公告)日：1987-01-10
申请号：IN1365CA1983
申请日：1983-11-05
Applicant: UNITED TECHNOLOGIES CORP
Inventor： HARNER KERMIT IVAN , NIESSEN FRANK RICHARD , SHERMAN ROBERT
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.
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Patent Agency Ranking
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
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.
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公开(公告)号：NO161190B
公开(公告)日：1989-04-03
申请号：NO833993
申请日：1983-11-02
Applicant: UNITED TECHNOLOGIES CORP
Inventor： HARNER KERMIT IVAN , NIESSEN FRANK RICHARD , SHERMAN ROBERT
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.
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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
CPC classification number: F03D7/0224 , F05B2220/706 , F05B2260/74 , F05B2270/328 , Y02E10/723 , Y02E10/725
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公开(公告)号：FI834074A
公开(公告)日：1984-05-09
申请号：FI834074
申请日：1983-11-07
Applicant: UNITED TECHNOLOGIES CORP
Inventor： HARNER KERMIT IVAN , NIESSEN FRANK RICHARD , SHERMAN ROBERT
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.
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公开(公告)号：DK508483A
公开(公告)日：1984-05-09
申请号：DK508483
申请日：1983-11-07
Applicant: UNITED TECHNOLOGIES CORP
Inventor： HARNER KERMIT IVAN , NIESSEN FRANK RICHARD , SHERMAN ROBERT
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.
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