The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 16, 2008
Filed:
Nov. 19, 2002
Eduardo Gallestey Alvarez, Tägerig, CH;
Alec Stothert, Ennetbaden, CH;
Marc Antoine, Gretzenbach, CH;
Steve Morton, Neuenhof, CH;
Eduardo Gallestey Alvarez, Tägerig, CH;
Alec Stothert, Ennetbaden, CH;
Marc Antoine, Gretzenbach, CH;
Steve Morton, Neuenhof, CH;
ABB Research Ltd, Zurich, CH;
Abstract
In a method and computer program product for optimal operation of a power plant and a power plant optimising system an optimisation mode () minimises a cost function (J[u],J[P]) that comprises a deviation of lifetime of plant components (LTp(τ)) from a desired nominal lifetime trajectory (LTn(τ)). This is done by, at a given time, determining future values of input values (u(τ),P(τ)) such as control values (P(τ)) or process values (u(τ)) to the plant and simulating, in a simulation modulate (), the behaviour of the plant up to a given future time. Corresponding lifetime values are determined in the simulation, and incorporated in an objective function. The optimisation module () minimises the cost function (J[u],J[P]) by varying the input values (u(τ),P(τ)). As a result, it is possible to operate the plant such that component lifetime (LTp(τ)) follows the desired trajectory (LTn(τ)).