METHOD OF CONTROL OF WIND POWER-GENERATING PLANT (VERSIONS) Russian patent published in 2007 - IPC F03D7/00 

FIELD: wind power engineering.

SUBSTANCE: invention relates to method of control of wind power-generating plants with horizontal axis of rotation of windwheel self-orientating to wind. According to proposed method of control of wind power-generating plant including synchronous turning of windwheel blades relative to plane of windwheel rotation within the range of angles from designed minimum angle φ₀ to wind vane angler φ_wv and holding of blades of windwheel at setting angle φ at which rotation of windwheel is stabilized within the range of nominal angular velocity of working duty ω_min ≤ ω_nom ≤ ω_max and also switching ON/OFF of load of wind power-generating plant and/or brake of wind wheel, at speeding up of windwheel by wind stream, orientation of blades of windwheel is carried out with preliminarily set angular velocity of blade turning relative to their longitudinal axes γ from angle φ_wv >_{φ to angle φwv <φ and time ts of speeding up of windwheel to preset}

angular velocity ω₀ ≤ ω_nom is recorded or angular velocity of speeding up of windwheel ω_s≤ ω_nom within set time t₀ is recorded and then values of t_s or ω_s are compared with preliminarily set threshold value t_s ^thr or ω_s ^thr at t_s ^thr or ω_s ^thr, rotation of windwheel is raised to angular velocity ω_max, and is connected with change of windwheel into range of nominal stabilized angular velocity ω_nom of working duty and at t_s<t_s ^thr or ω_s>ω_s ^thr, windwheel is stopped by changing blades to angle φ_wv and switch on load and/or brake, and simultaneously timer is switched to preliminarily set delay time t_d and at end of t_d, brake and load are switched off and windwheel is set to speeding up duty. When windwheel reaches angular velocity ω<ω_min at working duty, windwheel blades are turned with preliminarily set angular velocity of turning γ from angle φ to φ₀ until windwheel reaches ω_nom at preservation of condition ω<ω_min and then load is switched off, and blades of windwheel are set at angle 10^°<φ<50^°. When windwheel reaches angular velocity of ω≥ω_max at working duty, blades of windwheel are turned with preliminary set angular velocity of turning γ from angle φ to φ_wv until windwheel reaches ω_nom at preservation of condition ω>ω_max then brake of windwheel is applied and timer is switched on to provide preliminary set delay time t_d, at end of said period t_d brake and load are switched odd and windwheel is to speeding up duty.

EFFECT: provision of self-contained unattended operation of wind power-generating plant.

6 cl, 1 dwg