Method and power plant for operating wind turbine

• Main Author: SCHULTEN CHRISTOPH
• 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

A method for operating a wind turbine including a rotor and a power conversion system is provided. The method includes initializing, at a first time, the wind turbine to operate in an overproduction mode of operation in which electrical output power of the power conversion system is increased from an initial electrical output power of the power conversion system by providing kinetic energy stored in the rotor. At a second time, reduction of the electrical output power is started, and the reference power is integrated to determine an energy recovery value. An energy response value corresponding to a product of the reference power and a time difference between the second time and the first time is determined. The wind turbine operates in the recovery mode of operation from a third time when the electrical output power reaches or crosses the reference power until the energy recovery value becomes at least equal to the energy response value or until the electrical output power again reaches or crosses the referen