Xinjiang Goldwind Science & Technology has patented a method, apparatus, and system for monitoring islanding electricity generation units in renewable energy stations. The technology involves determining and controlling the disconnection of generator units based on electrical capacity at critical nodes. 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 February 2024 was 50%. Grant share is based on the ratio of number of grants to total number of patents.

Monitoring islanding electricity generation units in renewable energy stations

Source: United States Patent and Trademark Office (USPTO). Credit: Xinjiang Goldwind Science & Technology Co Ltd

A recently granted patent (Publication Number: US11916395B2) discloses a method for monitoring a generator unit in islanded operation within a renewable energy station. The method involves determining the generator unit in islanded operation based on an electrical quantity acquired at a key electrical node in the station and controlling a switching device to disconnect the generator unit from a collecting line. The key electrical node is crucial for combining grid-connected currents of generator units, and each collecting line combines grid-connected currents of at least one generator unit for input to a main transformer in the station. The method also includes determining the generator unit based on preset conditions and the on-off state of a breaker near the key electrical node.

Furthermore, the patent describes a system and an apparatus for monitoring a generator unit in islanded operation within a renewable energy station. The system includes electrical quantity acquisition terminals, switching devices, and a centralized controller to perform the monitoring method. The key electrical node plays a significant role in connecting collecting lines to the main transformer, with various electrical quantities being monitored to determine the generator unit in islanded operation. The apparatus, on the other hand, consists of determination and control units to carry out the monitoring process effectively. Overall, the patent aims to enhance the monitoring and control of generator units in islanded operation, particularly in wind power plants or photovoltaic stations, to ensure efficient and reliable operation within renewable energy systems.

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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.