ROTARY WINDMILL POWER CONTROL PROCESS Russian patent published in 1999 - IPC

FIELD: mechanical engineering; design and manufacture of windmill electric generating plants for various applications. SUBSTANCE: windmill power is controlled by varying rotor speed depending on velocity of oncoming wind stream; rotor is, essentially, body of revolution provided with end diaphragms; linear surface speed of rotor is varied in the course of its forced rotation depending on oncoming wind stream velocity according to equation v_l= (3,0...5,0)v_w.s, where v_l is linear velocity of windmill rotor surface; v_w.s is oncoming wind stream velocity. In the course of rotor running, windmill linear velocity is measured at its average diametral sectional area depending on wind speed according to equation v_w.r= (1,0...1,6)•v_w.s, where v_w.r is windmill linear velocity at its average diametral sectional area; v_w.s is oncoming wind stream velocity. EFFECT: improved coefficient of rotor performance. 2 cl, 3 dwg