Low speed multiblade wind turbine
AssigneeKing Fahd University of Petroleum and Minerals
InventorSikandar Khan
Life of this patent
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Abstract
A wind turbine for a region with an average wind speed of less than 5 m/s includes a rotor comprising a rotor hub and multiple blades connected to the rotor hub. The rotor is configured for rotation with a starting torque and a torque-magnitude-profile-over-time. Each blade has multiple sections distributed between a blade root and a blade tip, and each section has a chord length and an angle of twist. The chord length is a first non-dimensional value from 0 to 1 and the angle of twist is specified in radian. The first and second non-dimensional values are convertible to dimensional values in meters by multiplying the first non-dimensional values by a maximum chord length.
Claims12
A wind turbine for a region with a yearly average wind speed of less than 5 m/s, comprising:
- a rotor comprising a rotor hub wherein the rotor has a rotor diameter and is configured for rotation with a starting torque and a torque-magnitude-profile-over-time;
- and
- a plurality of blades wherein each blade of the plurality of blades:
- is connected to the rotor hub;
- extends radially about the rotor hub;
- has a blade root and a blade tip;
- and
- has a plurality of sections distributed longitudinally between the blade root and the blade tip, wherein each section of the plurality of sections has a chord length and an angle of twist set forth in Table 5;
- wherein the plurality of blades includes three or more blades;
- wherein the chord length is a first non-dimensional value from 0 to 1 and the angle of twist is specified in radian;
- and
- wherein the first non-dimensional value is convertible to a dimensional value in meters by multiplying the first non-dimensional value of the chord length.
A wind turbine for a region with a yearly average wind speed of less than 5 m/s, comprising:
- a rotor comprising a rotor hub wherein the rotor has a rotor diameter and is configured for rotation with a starting torque and a torque-magnitude-profile-over-time;
- and
- a plurality of blades wherein each blade of the plurality of blades:
- is connected to the rotor hub;
- extends radially about the rotor hub;
- has a blade root and a blade tip;
- and
- has a plurality of sections distributed longitudinally between the blade root and the blade tip, wherein each section of the plurality of sections has a chord length and an angle of twist set forth in Table 6;
- wherein the plurality of blades includes three or more blades;
- wherein the chord length is a first non-dimensional value from 0 to 1 and the angle of twist is specified in radian;
- and
- wherein the first non-dimensional value is convertible to a dimensional value in meters by multiplying the first non-dimensional value of the chord length.
Dependencies are inferred from the claim text.