Method and system for predicting rotating speed of small vertical-axis wind driven generator

• Main Authors: CHEN WEI, CUI YAWEN, LIU YAN, WANG ZHENHUA, LIN LIN, CAO MENGNAN, ZOU CHENYING, YANG RONGCHANG, MA ZHIYUAN, LIU MINGDA, DENG YI, WANG JIAN, YANG XIAOCHU, ZHU YULI
• Format: Patent
• Language: Chinese; English
• Published: 09.05.2023
• Subjects: BLASTING; CALCULATING; COMPUTING; COUNTING; HEATING; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT; LIGHTING; MACHINES OR ENGINES FOR LIQUIDS; MEASURING; MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK; MECHANICAL ENGINEERING; OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR; PHYSICS; PRODUCING MECHANICAL POWER; TESTING; WEAPONS; WIND MOTORS; WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS

The invention belongs to the technical field of wind driven generators, and provides a rotating speed prediction method and system for a vertical-axis small wind driven generator, and the method comprises the steps: obtaining an operation video of the small wind driven generator; performing clipping preprocessing and resolution reduction preprocessing on the running video; decomposing and numbering the preprocessed operation video to obtain a static graph with a number; feature color extraction is carried out on the static image; calculating the feature color area of each static picture, and drawing a corresponding curve of the feature color area according to the number of the static picture; according to the number of interval frames between adjacent wave crests in the curve, obtaining a rotating speed predicted value of the small wind driven generator; based on feature color recognition, the purpose of predicting the rotating speed of the small wind driven generator is achieved, the problem that rotating sp