WIND GENERATOR SET ACTIVE REGULATION METHOD AND APPARATUS BASED ON ADVANCE MEASUREMENT OF WIND SPEED

• Main Authors: YANG, Yinggang, LIU, Junbo, SU, Mei, DONG, Mi, CHANG, Qing, YANG, Jian, SUN, Yao, XIONG, Wenjing, SONG, Dongran
• Format: Patent
• Language: Chinese; English; French
• Published: 18.03.2021
• 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

A wind generator set active regulation method based on the advance measurement of wind speed. The method comprises: step 1, establishing a cost function according to an active regulation optimization objective of the operation of a wind generator set; step 2, establishing a state prediction equation for the wind generator set by using a wind speed measured in advance and a wind generator set model; step 3, solving, using a predicted state value, the cost function in order to obtain the sequence of the optimal given pitch angle and the sequence of a given torque; and step 4, using the sequence of the optimal given pitch angle of the wind generator set and a first element of the sequence of the given torque as an output of a controller. The method makes it possible, under a high-speed wind condition and when active power output is equal to target power, to reduce the actions of a variable-pitch mechanism and also reduce the fatigue load of a variable-pitch system, and also makes it possible to perform tracking