A METHOD FOR ASSESSING PERFORMANCE IMPACT OF A POWER UPGRADE

• Main Authors: BELTOFT DAN, KNUDSEN SVEN JESPER, NIELSEN CARSTEN KROGH
• Format: Patent
• Language: Chinese; English
• Published: 03.08.2018
• 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 assessing performance impact of a power upgrade of one or more wind turbines (2, 3, 4) of a wind farm (1) is disclosed. At least some of the wind turbines (2, 3, 4) of the wind farm (1) are divided into a group of target wind turbines (3) and a group of reference wind turbines( 2), and local wind speeds are measured at the wind turbines. For each of the target wind turbines (3), a transfer function is generated, establishing a relationship between the locally measured wind speed at the target wind turbine (3) and the locally measured wind speeds at each of the reference wind turbines (2). A power upgrade is performed on each of the target wind turbines (3), and subsequently power performance data is obtained for the reference wind turbines (2) and the target wind turbines (3),within one or more wind speed intervals. For the target wind turbines (3), the wind speed intervals are based on estimated wind speeds, based on the locally measured wind speeds at the reference windturbines (2) and the tran