US 11,962,158 B2
Regulation method and regulation device for converter of wind turbine generator in wind power plant
Zhongchuan Jiang, Beijing (CN); and Aisikaer, Beijing (CN)
Assigned to XINJIANG GOLDWIND SCIENCE & TECHNOLOGY CO., LTD., Xinjiang (CN)
Appl. No. 17/906,710
Filed by XINJIANG GOLDWIND SCIENCE & TECHNOLOGY CO., LTD., Xinjiang (CN)
PCT Filed Sep. 14, 2020, PCT No. PCT/CN2020/115061
§ 371(c)(1), (2) Date Sep. 19, 2022,
PCT Pub. No. WO2021/184702, PCT Pub. Date Sep. 23, 2021.
Claims priority of application No. 202010195403.1 (CN), filed on Mar. 19, 2020.
Prior Publication US 2023/0208145 A1, Jun. 29, 2023
Int. Cl. H02J 3/38 (2006.01); H02J 3/01 (2006.01); H02M 1/00 (2006.01); H02M 1/12 (2006.01); H02M 7/493 (2007.01); H02M 7/5387 (2007.01)
CPC H02J 3/381 (2013.01) [H02J 3/01 (2013.01); H02M 1/0043 (2021.05); H02M 1/12 (2013.01); H02M 7/493 (2013.01); H02M 7/53871 (2013.01); H02J 2300/28 (2020.01)] 19 Claims
OG exemplary drawing
 
1. A method for regulating converters of wind turbines in a wind farm, comprising:
obtaining real-time voltage and current signals at a point of common coupling;
obtaining real-time status information of wind turbines on a same collecting line in the wind farm; and
generating a unified regulation instruction based on the real-time voltage and current signals and the real-time status information as obtained,
wherein the real-time status information comprises: a total number of three-phase bridge arms of converters of currently running wind turbines on the same collecting line in the wind farm, serial numbers dynamically assigned to the converters of the currently running wind turbines and the three-phase bridge arms of the converters, and a real-time power of each of the currently running wind turbines, and
wherein the unified regulation instruction comprises regulation instructions for all the converters of the currently running wind turbines, and each of the regulation instructions comprises a reference value of a phase shift angle and a reference value of a carrier ratio of a carrier, and a reference value of a characteristic quantity of a modulated wave, for regulation of each of three-phase bridge arms in a respective converter.