Variable-pitch high-power vertical axis wind power generating device and pneumatic starting-stopping control method

• Main Authors: Qu Jianjun, Zhao Yue, Liu Ruijiao, Yin Wei
• Format: Patent
• Language: Chinese; English
• Published: 17.08.2016
• Subjects: BLASTING; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; INDEXING SCHEME RELATING TO MACHINES OR ENGINES OTHER THANNON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, TO WIND MOTORS,TO NON-POSITIVE DISPLACEMENT PUMPS, AND TO GENERATING COMBUSTIONPRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY; INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUSSUBCLASSES OF CLASSES F01-F04; LIGHTING; MACHINES OR ENGINES FOR LIQUIDS; MECHANICAL ENGINEERING; OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR; PRODUCING MECHANICAL POWER; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS; WIND MOTORS; WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS

The invention provides a variable-pitch high-power vertical axis wind power generating device and a pneumatic starting-stopping control method, relates to a power generating device and a pneumatic starting-stopping control method, and aims at solving the problems of an existing large-size vertical axis wind turbine that an overlong main shaft or an overlong supporting arm causes overweight of the whole machine, and blades are difficult to vary the pitch, resulting in difficult starting and braking. The device comprises an electric slip ring, and a plurality of variable-propeller devices which are as much as the blades, wherein each variable-propeller device comprises a variable-propeller motor and a gear pair; a curved surface formed by center lines of the plurality of blades forms an inverted tapered surface; a root part of each blade is rotatably mounted on a hub; a variable-propeller device, corresponding to each blade, is arranged on the hub; two gears of each gear pair are correspondingly mounted on the