Angle interlocking method and device for wind power variable pitch system

• Main Authors: GUO XIAOYU, MENG QUANCHANG, LYU FENG, ZHENG XIAOFEI, WANG ZHENWEI, TANG JIANGFENG, SUN DONGXU
• Format: Patent
• Language: Chinese; English
• Published: 04.01.2019
• 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 relates to an angle interlocking method and device for a wind power variable pitch system. The angle interlocking device comprises a safe position feedback relay, a safe position feedback cable and an angle interlocking bypass heavy-load plug. Whether the forward and reverse rotation of a variable pitch shaft cabinet is effective or not is controlled by the safe position feedback relay and the safe position feedback cable, and a bypass with the angle interlock function is realized through the angle interlocking bypass heavy-duty plug, so that the variable pitch system can be exempt from being influenced by the installation process and blade angles during the hoisting stage of a wind turbine generator set. By means of the angle interlocking method and device for the wind powervariable pitch system, the angle interlocking function of the variable pitch system can be realized; in the hoisting stage of the wind turbine generator set, the variable pitch system can perform forward and reverse rotation