Estimating health parameters or symptoms of a degrading system

Details Estimating health parameters or symptoms of a degrading system Estimating health parameters or symptoms of a degrading system

2011-01-10

2011-11-01

Hellner, Mark (Department: 3663)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C702S034000, C702S081000, C702S085000, C701S059000, C701S099000, C701S101000

Reexamination Certificate

active

08050843

ABSTRACT:
The present invention is concerned with the estimation of health parameters p(k) representing symptoms of a slowly degrading system, in particular industrial gas turbines. According to the invention, an estimation of a true health or independent parameter vector at time step k uses the estimation of the true health or parameter vector at a previous time step k−1 as a starting value for the production of a predicted health parameter vector at time step k. Based on the latter and a set of measured values of input variables of an extended model of the system, a prediction of output variables of the model is produced. This predicted model output is compared with measured values of the output variables to yield an error. From this error, a health parameter estimator in turn produces a health parameter estimate as a revision of the predicted health parameters. Preferably, the estimation of a true health or independent parameter vector at time step k includes a generalised process noise representing stochastic uncertainty and/or a-priori knowledge of an evolution of the health parameters.

REFERENCES:
patent: 4215412 (1980-07-01), Bernier et al.
patent: 6063129 (2000-05-01), Dadd et al.
patent: 0858017 (1998-08-01), None
patent: 1103926 (2001-05-01), None
patent: 1233165 (2002-08-01), None
patent: 1418481 (2004-05-01), None

Affiliated with

Also associated with

Rating

Estimating health parameters or symptoms of a degrading system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Estimating health parameters or symptoms of a degrading system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Estimating health parameters or symptoms of a degrading system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4255932