Smooth torque control method for switchover of forward rotation and reverse rotation of variable pitch motor of wind power generation system

• Main Authors: FAN BISHUANG, MENG QINGHUI, LIU ZHILONG
• Format: Patent
• Language: Chinese; English
• Published: 01.08.2017
• Subjects: BLASTING; HEATING; LIGHTING; MACHINES OR ENGINES FOR LIQUIDS; MECHANICAL ENGINEERING; OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR; PRODUCING MECHANICAL POWER; WEAPONS; WIND MOTORS; WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS

The invention discloses a smooth torque control method for switchover of forward rotation and reverse rotation of a variable pitch motor of a wind power generation system. The method comprises variable pitch driver output torque smooth control in the changing process from forward adjustment of a paddle to reverse adjustment of the paddle and variable pitch driver output torque smooth control in the changing process from reverse adjustment of the paddle to forward adjustment of the paddle. Through angle changes of the paddle at different times and changes of variable pitch speeds at different times, stepping smooth adjustment is conducted on final target torque output by a variable pitch driver, the output final target torque meets the paddle angle adjusting requirement at current time, meanwhile, acute rigidity collisions generated through large and small meshing gears in the process from forward adjustment of the paddle to reverse adjustment of the paddle and in the process from reverse adjustment of the pad