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1. (WO2018144744) GENERATING STEAM TURBINE PERFORMANCE MAPS

Pub. No.:    WO/2018/144744    International Application No.:    PCT/US2018/016469
Publication Date: Fri Aug 10 01:59:59 CEST 2018 International Filing Date: Fri Feb 02 00:59:59 CET 2018
IPC: F01K 13/02
F01K 7/04
F01D 17/02
Applicants: WOODWARD, INC.
Inventors: BRITT, Tena K.
OCEANAK, Scott David
RUBENTHALER, Dave
RUSSO, Aaron
Title: GENERATING STEAM TURBINE PERFORMANCE MAPS
Abstract:
In some aspects, a steam turbine system includes a high-pressure turbine section; a low-pressure turbine section; a high-pressure control valve operable to provide an adjustable flow of steam into the high-pressure turbine section; a low-pressure control valve operable to provide an adjustable flow of steam into the low-pressure turbine section; a controller associated with the high-pressure control valve and the low-pressure control valve. The controller is operable to: receive measurements of three or more different operating points of the steam turbine system, the measurements of each of the three or more different operating points including a position of the high-pressure control valve, a position of the low-pressure control valve, and two of process variables of the steam turbine system; calculate coefficients of a steam performance map of the steam turbine system based on the measurements; and generate the steam performance map based on the coefficients.