Xinjiang Goldwind Science & Technology has patented a method and device for regulating wind turbine converters in a wind power plant. The technology involves real-time monitoring of voltage, current, and status information to generate unified regulation instructions for optimal performance. GlobalData’s report on Xinjiang Goldwind Science & Technology 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 Xinjiang Goldwind Science & Technology, Ram air turbine was a key innovation area identified from patents. Xinjiang Goldwind Science & Technology's grant share as of March 2024 was 50%. Grant share is based on the ratio of number of grants to total number of patents.
Regulation method and device for wind turbine converter
A recently granted patent (Publication Number: US11962158B2) discloses a method for regulating converters of wind turbines in a wind farm. The method involves obtaining real-time voltage and current signals at a point of common coupling, along with real-time status information of wind turbines on the same collecting line in the wind farm. This information is used to generate a unified regulation instruction that includes regulation instructions for all the converters of the currently running wind turbines, specifying reference values for phase shift angle, carrier ratio, and characteristic quantity of a modulated wave for each three-phase bridge arm in a respective converter.
Furthermore, the method includes calculating total current harmonic content, comparing it with an index value, and determining the reference value of the carrier ratio based on this comparison and the real-time power of each running wind turbine. The regulation instruction also involves calculating the reference value of the phase shift angle of the carrier for each three-phase bridge arm in the converters based on the real-time status information and the calculated reference value of the carrier ratio. The patent also covers the transmission of regulation instructions to converter controllers through a high-speed optical fiber communication network, enabling the regulation of each three-phase bridge arm in a respective converter based on the received instruction, showcasing a comprehensive approach to optimizing wind turbine performance in a wind farm setting.
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