Data processing: measuring – calibrating – or testing – Measurement system – Temperature measuring system
Patent
1996-12-13
1998-11-03
Trammell, James P.
Data processing: measuring, calibrating, or testing
Measurement system
Temperature measuring system
702 60, 395904, G01K 1510
Patent
active
058324216
ABSTRACT:
A method for blade temp estimation in a steam turbine utilizes measurement values including pressure and temperature at locations other than directly at the blades, principally at the input and output stages. Initially, blade temperature is simulated by using a water/steam cycle analysis program as well as by directed experiments. An artificial neural network (ANN) is trained by presenting the measurement values and the blade temp values. In a hybrid approach, 5 measured values are utilized. A subset of 4 parameter values is used for training the ANN and another subset of 3 values is used for performing a calculation for another intermediate parameter. Using the intermediate parameter and one of the 5 measured values, a blade temperature is calculated.
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Petsche Thomas
Santoso Nugroho Iwan
Ahmed Adel A.
Siemens Corporate Research Inc.
Trammell James P.
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