SU1710821A1 - Wind motor - Google Patents

Abstract

This invention relates to wind power. The purpose of the invention is to increase efficiency and reliability. A wind turbine consists of 1 blade mounted on a shaft with loads-counterweights 4, made in the form of small blades. At the same time, the parameters of the blade 3 and the counterbalance weights 4 are related by the following relationship: 5L Si / i-f-52/2 + + - + 5 /, where S is the projected area of the blade 3 onto the plane of rotation of the wind wheel; L is the distance from the center of wind pressure on the blade 3 to the axis of rotation of the propeller shaft; 5 | ... 5Я - the area of projections of cargo-counterbalances 4 on the plane of rotation of the wind wheel; 1 ... 1p is the distance from the centers of wind pressure for each load-counter weight 4 to the axis of rotation of the propeller shaft. This allows the wind turbine to perform its aerodynamic balancing and to ensure maximum torque when the wind turbine is put into operation. 2 Il.

Description

 Fng.1

The invention relates to wind energy. The purpose of the invention is to increase efficiency and reliability.

FIG. 1 schematically shows a wind turbine, a general view; in fig. 2 - wind wheel with the resultant wind pressure forces and their distance from a point passing through the center of rotation of the wind wheel.

The wind turbine contains 1 shaft 1, the hub 2, to which the blade 3 is attached, with a working angle installed, on the opposite side of the hub 2 is attached a weight counterweight 4, the installation angle of which is equal to 2-3 angles setting the blades 3, and the counterweight is 0.3 -0.6 blade lengths 3. The blade 3 is provided with at least one additional weight counterweight 4, and the parameters of the blade 3 and the weight counterbalances 4 are related by the following relationship:

, /, + S, / H -... + $ „/„,

where 5 is the projection area of the blade 3 on the plane of rotation of the wind wheel; L is the distance from. pressure center

wind on the blade 3 to the axis of rotation of the wheeled;

S ... Sr.- Shushad-and projections of counterbalance weights onto the rotational cavity of the wind wheel;

The G is the distance from the centers of wind pressure for each load-counterweight 4 to the axis of rotation of the wind wheel. Wind turbine works as follows.

Windwheel is oriented to the wind, while the weights-balances 4, due to the large setting angle, will begin to spin

five

0

wind wheel to the angular speed at which the blade 3 will start to work effectively. The torque on each of the counterbalance weights 4 will be folded up at the moment of launch, which will accelerate the wind turbine output to the calculated angular speed. As a result of aerodynamic balancing, there will be no oscillations of the wind wheel relative to the wind speed, as a result of which the angles of the blade 3 relative to the wind speed vector will be calculated.

Claims (1)

Invention Formula A wind turbine containing a shaft-mounted hub with a blade mounted on it and a counterweight, the installation angle of which is 2-3 angles of the blade, and the length is 0.3-0.6 of the blade length, characterized in that in order to increase reliability and Efficiency, the blade is equipped with at least one additional weight-counterweight, and the parameters of the blade and cargo-balances are related by the following relationship: , + S2 / 2 + ... + 5A, where S is the area of the projection of the blade on the plane of rotation of the wind wheel; L is the distance from the center of wind pressure on the blade to the axis of rotation of the wind wheel; S ... Sn is the area of the projections of the counterweight weights onto the plane of rotation of the windwheel; 1 - 1 n spacing from the centers of wind pressure for each load counterweight to the axis of rotation of the propeller shaft.