Pitch-regulated vertical access wind turbine

US5503525A · kind A · utility

Assignee

• The University of Melbourne · AU

Inventors

• Kenneth C. Brown · Mesa, US
• Peter John Meikle · Melbourne, AU

Key dates

• Filing date: Apr 28, 1994
• Grant date: Apr 2, 1996
• Expiry date: Apr 28, 2014

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/74
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A cross flow wind turbine comprising a rotor mounted for rotation about a vertical axis and a plurality of blade assemblies mounted on the rotor. Each blade assembly comprises a blade of aerofoil section mounted vertically for pivotal movement about a vertical shaft. The turbine also includes a device for measuring the direction of the apparent fluid velocity, a shaft encoder for measuring the blade angle and a control system to set the blade angle such that the lift component of the aerodynamic forces on the blade contributes positively to the driving torque on the rotor.