| 摘要 |
A power takeoff hydraulic drive of a wind-driven power plant comprises a windmill, this is kinematically connected through the shaft and reducer to speed transducer, electrically connected to control unit, and the first and second pumps, those are hydraulically connected through the first and the second distribution valves to the third and fourth distribution valves. The third distribution valve is connected to the first and second hydraulic motors that through the fifth and sixths distribution valves are connected to the first and the second flow control valves, respectively. The fourth distribution valve is connected through the seventh distribution valve to the third hydraulic motor, this is connected to the third flow control valve. The first, second and third hydraulic motors are kinematically connected to the first, second and third generator and electrically to the first, second and third pressure sensors, respectively, those are electrically connected to the control unit. As bleed-off valves ratio valves are used, hydraulic motors have different working volumes and are connected to each other with distribution valves in parallel and in series, and between the first and second, the third and fourth distribution valves common hydraulic line is installed, this is connected to hydraulic accumulators connected through distribution valves and return valves. |
