Method and Device for Determining a Parameter of a Model of a Technical Installation
AssigneeInfineon Technologies AG
InventorsMichael Lunglmayr, Stefano Marsili, Christoph Unterrieder
Life of this patent
Estimating the term…
Abstract
Methods and devices for determining at least one parameter of a model of a technical installation are provided. In this case, the parameters are updated on the basis of measurements as a function of an observation matrix. The observation matrix is prescribed as a function of the model and being able, if appropriate, to depend on a time variable which can be measured.
Claims20
A method for determining at least one parameter of a model of a technical installation, the method comprising:
- initializing at least one parameter at a prescribed value;
- and
- repeatedly:
- determining an estimate of at least one physical quantity as a function of a previous value of the at least one parameter and of at least one part of an observation matrix;
- measuring the at least one physical quantity of the technical installation;
- determining an error value as a function of the estimate of the at least one physical quantity and of the measured value of the at least one physical quantity;
- and
- determining an updated value of the at least one parameter as a function of the preceding value of the at least one parameter, of the error value and at least of the part of the observation matrix, the observation matrix being an observation matrix prescribed as a function of the model.
A device for determining at least one parameter of a model of a technical installation, the device comprising:
- a detecting device configured to detect at least one physical quantity of the technical installation, and
- an evaluation device which is set up to initialize at least one parameter at a prescribed value and then, repeatedly:
- to determine an estimate of at least one physical quantity as a function of a previous value of the at least one parameter and at least one part of an observation matrix;
- to receive a measured value of the at least one physical quantity of the technical installation of the detecting device;
- to determine an error value as a function of the estimate of the at least one physical quantity and the measured value of the at least one physical quantity;
- and
- to determine an updated value of the at least one parameter as a function of the preceding value of the at least one parameter, of the error value and at least of the part of the observation matrix, the observation matrix being an observation matrix prescribed as a function of the model.
Dependencies are inferred from the claim text.