Vestas Wind Systems has patented a method for operating wind turbine generators by adjusting blade pitch angles based on rotor speed errors. The control factor is modified depending on rotor speed, optimizing performance. Decrementing the control factor in specific rotor speed ranges further enhances efficiency. GlobalData’s report on Vestas Wind Systems gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Vestas Wind Systems, Aerial inspection drones was a key innovation area identified from patents. Vestas Wind Systems's grant share as of January 2024 was 51%. Grant share is based on the ratio of number of grants to total number of patents.

Method of operating wind turbine generator with blade pitch control

Source: United States Patent and Trademark Office (USPTO). Credit: Vestas Wind Systems AS

A recently granted patent (Publication Number: US11885303B2) discloses a method for operating a wind turbine generator with improved efficiency. The method involves comparing the rotor speed with a target speed, adjusting the pitch angle of the blades based on the speed error, and modifying a control factor to optimize performance. By decrementing the control factor within specific rotor speed ranges, the method aims to enhance the turbine's operation and reduce power consumption during idling or grid loss scenarios.

Furthermore, the patent includes a control system and a controller designed to implement the method effectively. The control system compares rotor speed with the target, adjusts blade pitch, and modifies the control factor based on the rotor speed range. The controller, equipped with memory and a processor, enables precise operation of the wind turbine generator by managing the pitch control system and optimizing the control factor. These innovations aim to enhance the overall performance and energy efficiency of wind turbine generators, particularly during standby modes or grid loss situations, showcasing advancements in renewable energy technology.

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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.