Title:
蒸気タービンにおける羽根温度推定方法
Document Type and Number:
Japanese Patent JP4005143
Kind Code:
B2
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.
Inventors:
Nugroho Ivan Santoso
Thomas peche
Thomas peche
Application Number:
JP52680798A
Publication Date:
November 07, 2007
Filing Date:
December 05, 1997
Export Citation:
Assignee:
Siemens Corporate Research,Inc.
International Classes:
F01D25/00; F01K13/00; F01K13/02; G05B13/02; G05B17/00; G05B17/02; G06F17/50; G06N3/02; G06N7/02
Foreign References:
| US5306088 | ||||
| US4227093 |
Attorney, Agent or Firm:
Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Toshiomi Yamazaki
Takuya Kuno