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1. (US20190041838) DETECTION OF TEMPERATURE SENSOR FAILURE IN TURBINE SYSTEMS

Office : United States of America
Application Number: 16075726 Application Date: 18.01.2017
Publication Number: 20190041838 Publication Date: 07.02.2019
Publication Kind : A1
Prior PCT appl.: Application Number:PCTEP2017050918 ; Publication Number: Click to see the data
IPC:
G05B 23/02
G05B 9/02
G01K 7/22
G01K 15/00
F01D 21/00
G PHYSICS
05
CONTROLLING; REGULATING
B
CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
23
Testing or monitoring of control systems or parts thereof
02
Electric testing or monitoring
G PHYSICS
05
CONTROLLING; REGULATING
B
CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
9
Safety arrangements
02
electric
G PHYSICS
01
MEASURING; TESTING
K
MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
7
Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat
16
using resistive elements
22
the element being a non-linear resistance, e.g. thermistor
G PHYSICS
01
MEASURING; TESTING
K
MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
15
Testing or calibrating of thermometers
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
D
NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
21
Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
CPC:
F01D 21/003
F05D 2270/80
G01K 15/007
G01K 2205/04
G01K 7/22
G05B 23/0254
G05B 9/02
Applicants: Siemens Aktiengesellschaft
Inventors: Alexey Fishkin
Anthony Latimer
Adam Marsden
Mikhail Roshchin
Priority Data: 16154818.5 09.02.2016 EP
Title: (EN) DETECTION OF TEMPERATURE SENSOR FAILURE IN TURBINE SYSTEMS
Abstract: front page image
(EN)

A method of detecting a temperature sensor failure in a turbine system, includes obtaining individual measurement values from each temperature sensor in a group of temperature sensors, calculating a characteristic value for each temperature sensor in the group based on the measurement values for the corresponding temperature sensor, selecting a first characteristic value among the calculated characteristic values, determining a first maximum value as the maximum of the characteristic values except for the first characteristic value, and determining that the temperature sensor corresponding to the first characteristic value is defective if the first characteristic value is larger than the first maximum value multiplied by a predetermined factor. A corresponding device, system, computer program and computer program product utilize the method.


Also published as:
IN201847025706CN108604085CA3013822EP3414631BR112018014988WO/2017/137218