System and method for detection of rotor eccentricity baseline shift
First Claim
1. A method to determine eccentricity of a rotor in a turbine comprising:
- collecting sensor data of rotor eccentricity for a plurality of startup operations;
establishing a baseline eccentricity value using the sensor data corresponding to a selected startup operation;
determining an eccentricity value using the filtered sensor data for each of a plurality of startup operations subsequent to the selected startup operation;
determining a rotor eccentricity difference between the baseline eccentricity value and each of the eccentricity values for the plurality of startup operations subsequent to the selected startup operation, andreporting a rotor eccentricity condition based on the rotor eccentricity difference.
2 Assignments
0 Petitions
Accused Products
Abstract
A method to determine eccentricity of a rotor in a turbine including: collecting sensor data of rotor eccentricity for a plurality of startup operations; establishing a baseline eccentricity value using the sensor data corresponding to a selected startup operation; determining an eccentricity value using the filtered sensor data for each of a plurality of startup operations subsequent to the selected startup operation; determining a rotor eccentricity difference between the baseline eccentricity value and each of the eccentricity values for the plurality of startup operations subsequent to the selected startup operation, and reporting a rotor eccentricity condition based on the rotor eccentricity difference.
36 Citations
20 Claims
-
1. A method to determine eccentricity of a rotor in a turbine comprising:
-
collecting sensor data of rotor eccentricity for a plurality of startup operations; establishing a baseline eccentricity value using the sensor data corresponding to a selected startup operation; determining an eccentricity value using the filtered sensor data for each of a plurality of startup operations subsequent to the selected startup operation; determining a rotor eccentricity difference between the baseline eccentricity value and each of the eccentricity values for the plurality of startup operations subsequent to the selected startup operation, and reporting a rotor eccentricity condition based on the rotor eccentricity difference. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A method to determine eccentricity of a rotor in a turbine comprising:
-
collecting sensor data of rotor eccentricity for a time period corresponding to a variety of turbine operations; filtering the sensor data to extract sensor data corresponding to turbine startup operations; establishing a baseline eccentricity value using the filtered sensor data corresponding to a selected startup operation; determining an eccentricity value using the filtered sensor data for each of a plurality of startup operations subsequent to the selected startup operation; determining a rotor eccentricity difference between the baseline eccentricity value and each of the eccentricity values for the plurality of startup operations subsequent to the selected startup operation, and reporting a rotor eccentricity condition based on the rotor eccentricity difference. - View Dependent Claims (13, 14, 15, 16, 17, 18)
-
-
19. A system to determine eccentricity of a rotor in a turbine comprising:
-
a rotor eccentricity sensor monitoring rotor eccentricity and generating rotor eccentricity data; a computer system including; a database storing the rotor eccentricity data for a period corresponding to a variety of turbine operations; a data filter extracting rotor eccentricity data corresponding to turbine startup operations from the rotor eccentricity data and generating filtered sensor data; an algorithm establishing a baseline eccentricity value using the filtered sensor data corresponding to a selected startup operation; an algorithm establishing an eccentricity value using the filtered sensor data for each of a plurality of startup operations subsequent to the selected startup operation; an algorithm determining a rotor eccentricity difference between the baseline eccentricity value and each of the eccentricity values for the plurality of startup operations subsequent to the selected startup operation, and an report generator to issue reports of a rotor eccentricity condition based on the rotor eccentricity difference. - View Dependent Claims (20)
-
Specification