US 12,224,699 B2
Wind turbine generator system, and rotation speed avoidance control method and apparatus therefor
Xinli Zhang, Beijing (CN)
Assigned to BEIJING GOLDWIND SCIENCE & CREATION WINDPOWER EQUIPMENT CO., LTD., Beijing (CN)
Appl. No. 17/997,078
Filed by BEIJING GOLDWIND SCIENCE & CREATION WINDPOWER EQUIPMENT CO., LTD., Beijing (CN)
PCT Filed Mar. 30, 2021, PCT No. PCT/CN2021/084035
§ 371(c)(1), (2) Date Oct. 25, 2022,
PCT Pub. No. WO2022/001250, PCT Pub. Date Jan. 6, 2022.
Claims priority of application No. 202010597078.1 (CN), filed on Jun. 28, 2020.
Prior Publication US 2023/0223875 A1, Jul. 13, 2023
Int. Cl. H02P 9/00 (2006.01); F03D 7/02 (2006.01); H02P 101/15 (2016.01); H02P 103/20 (2016.01)
CPC H02P 9/008 (2013.01) [F03D 7/0276 (2013.01); F03D 7/0296 (2013.01); F05B 2260/96 (2013.01); F05B 2270/101 (2013.01); F05B 2270/327 (2013.01); H02P 2101/15 (2015.01); H02P 2103/20 (2015.01)] 16 Claims
OG exemplary drawing
 
1. A method for controlling a rotational speed exclusion range for a wind turbine, comprising:
determining an upper limit of power required by an instruction for a limited-power operation of the wind turbine;
identifying an abnormality of the rotational speed exclusion range for the wind turbine based on statistical information about a rotational speed of a generator operating in the rotational speed exclusion range;
judging that the required upper limit of power is in a power exclusion range corresponding to the rotational speed exclusion range during the abnormality;
setting a maximum allowable power of the wind turbine as a lower boundary value of the power exclusion range during the required upper limit of power is in the power exclusion range,
wherein an upper boundary value of the power exclusion range is power determined based on an upper boundary value of the rotational speed exclusion range, and the lower boundary value of the power exclusion range is power determined based on a lower boundary value of the rotational speed exclusion range,
wherein each of the rotational speed exclusion range and the power exclusion range is an open interval in which endpoints at both ends are excluded, and
wherein the method further comprises:
setting the maximum allowable power of the wind turbine as the required upper limit of power during the required upper limit of power is not in the power exclusion range.