Invention Grant
- Patent Title: Method for determining the operating point of a hydraulic machine and installation for converting hydraulic energy
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Application No.: US15511351Application Date: 2015-08-18
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Publication No.: US10598145B2Publication Date: 2020-03-24
- Inventor: Quentin Alloin , Nicolas Perrissin-Fabert , Renaud Guillaume
- Applicant: ALSTOM Renewable Technologies
- Applicant Address: FR Grenoble
- Assignee: GE Renewable Technologies
- Current Assignee: GE Renewable Technologies
- Current Assignee Address: FR Grenoble
- Agency: Dority & Manning, P.A.
- Priority: EP14290276 20140915
- International Application: PCT/EP2015/068927 WO 20150818
- International Announcement: WO2016/041719 WO 20160324
- Main IPC: F03B3/18
- IPC: F03B3/18 ; F03B3/02 ; F03B15/06 ; G01B21/00

Abstract:
This method allows determining the operating point of a hydraulic machine in a considered operating range, such as turbine mode, and comprises steps that consist in a) determining two coordinates (N′11, T′11) of a first series of potential operating points of the hydraulic machine for the orientation affected to guide vanes of the machine, b) measuring the rotation speed of the machine, and c) determining the torque exerted by water flow on the machine. The method further includes steps consisting in d) calculating two coordinates (N11, T11) of a second series of potential operating points of the machine in function of the rotation speed (N) measured at step b) and the torque determined at step c), and e) deducing the two coordinates (N11_real, T11_real) of operating point that belongs both to the first and the second series in the said considered operating range of the machine.
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