Calibration method for yaw wind alignment error of wind turbine generator

• Main Authors: ZHU JINKUI, HE GUODONG, QIN GANGHUA, SUN SHIEN, SHOU CHUNHUI, WU YIWEN, GUO RONGMIN
• Format: Patent
• Language: Chinese; English
• Published: 15.11.2022
• 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 a calibration method for yaw wind alignment errors of a wind turbine generator. The calibration method comprises the following steps: collecting an original data set; screening data; performing data partitioning on the wind error interval according to yaw; calculating a unit wind speed-unit power curve under different yaw wind error conditions; calculating average power under different yaw error conditions; and calculating an average yaw wind-facing error in the yaw wind-facing error interval with the maximum average power value. The method has the beneficial effects that the interference of factors such as unit fault, operation and maintenance, power grid power limitation and the like on the result is eliminated, the time period when the wind speed of the unit is between the cut-in wind speed and the rated wind speed is screened out, the most important difference interval is analyzed, the deviation caused by fewer data points during the construction of the power curve is avoided, and