发明名称 |
Method and system to model risk of unplanned outages of power generation machine |
摘要 |
A method to determine a risk of failure for a machine including: generating a first value for a risk of failure of the machine, wherein the first value is determined by a first model receiving as an input a condition of the machine and the first model includes a relationship derived from historical machine failures and correlating the input condition of the machine to a value for the risk of failure; generating a second value of the risk of failure of the machine, wherein the second value is determined by a second model receiving as an input information regarding wear or degradation of the machine and the second model includes a relationship correlating the input information regarding wear or degradation to a value for the risk of failure, and determining a total risk of failure based on the first and second values of the risk of failure. |
申请公布号 |
US9563198(B2) |
申请公布日期 |
2017.02.07 |
申请号 |
US201213415051 |
申请日期 |
2012.03.08 |
申请人 |
General Electric Company |
发明人 |
Anup Kumar;Agarwal Anurag |
分类号 |
G06F19/00;G05B23/02 |
主分类号 |
G06F19/00 |
代理机构 |
Nixon & Vanderhye P.C. |
代理人 |
Nixon & Vanderhye P.C. |
主权项 |
1. A method to determine an optimum period for off-line repair and/or maintenance of a power generation machine including a turbine, comprising:
providing a turbine including rotating components configured to generate power; inserting a bore scope into an internal portion of the turbine to inspect internal components of the turbine; observing a plurality of failure modes for the machine over a predetermined period of time; compiling a first record of the plurality of failure modes for the machine over a predetermined period of time; generating a first value for a risk of failure of the machine, wherein the first value is determined by a first model including a relationship derived from the first record of the plurality of failure modes including historical failures and correlating the input condition of the machine to a value for the risk of failure; monitoring wear or degradation of the machine with the bore scope at least a first time; recording a second record of the wear or degradation monitored at least a first time; generating a second value of the risk of failure of the machine, wherein the second value is determined by a second model including a relationship correlating the second record regarding wear or degradation to a value for the risk of failure; and determining a total calculated risk of failure based on the first and second values of the risk of failure; setting a threshold risk level of the risk of failure; andtaking the machine off-line for repairs and/or maintenance when the total calculated risk of failure exceeds the threshold risk level. |
地址 |
Schenectady NY US |