The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 24, 2026
Filed:
Oct. 31, 2023
Csg Power Generation Co., Ltd. Maint. & Test Co., Guangzhou, CN;
Mingxuan Yang, Guangzhou, CN;
Yaxiong Yu, Guangzhou, CN;
Yu Gong, Guangzhou, CN;
Xiaobo Qiu, Guangzhou, CN;
Tao Chen, Guangzhou, CN;
Qing Li, Guangzhou, CN;
Hao Wu, Guangzhou, CN;
Kaiwei Xu, Guangzhou, CN;
CSG POWER GENERATION CO., LTD. MAINT. & TEST CO., Guangzhou, CN;
Abstract
The present disclosure discloses a method and an apparatus for identifying an S-characteristic of a pump turbine and a control method. The method for identifying an S-characteristic of a pump turbine includes: collecting a set of state parameters of the pump turbine at a preset time interval, wherein the state parameters comprise a flow rate and a rotation speed of the pump turbine; calculating a slope of a relationship curve between the rotation speed and the flow rate of the pump turbine within a current preset time interval; and determining, according to the positivity or negativity and an absolute value of the slope, whether the pump turbine enters an S-characteristic region.