Method for computer-aided closed-loop and/or open-loop control of a technical system

US9043254B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Volkmar Sterzing · Neubiberg, DE
• Steffen Udluft · Birkenfeld, DE
• Jatinder Pal Singh · Mountain View, US
• Hans-Gerd Brummel · Berlin, DE
• Glenn E. Sancewich · Cocoa, US

Key dates

• Filing date: Apr 12, 2010
• Grant date: May 26, 2015
• Expiry date: Mar 18, 2031

Classification

• Technology area (CPC G): Physics
• CPC primary: G05B2219/42152
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A method for computer-aided closed and/or open-loop control of a technical system is provided. A first value of an output quantity is predicted on a data-based model at a current point in time. A second value of the output quantity is determined from an analytical model. The state of the technical system at the current point is assigned a confidence score in the correctness of prediction of the data-based model. A third value of the output quantity is determined from the first and second value as a function of the confidence score for controlling the technical system. A suitable value for the output quantity can be derived from the analytical model even for regions of the technical system in which the quality of prediction of the data-based model is low because of a small set of training data. The technical systems can be turbines, such as gas turbines.