A method and device for the determination of model parameters for controlling a steam power plant blocks, a control device for a steam generator and a computer program product

摘要

The present invention relates to a method and a corresponding device for the determination of at least one model parameters of a control engineering model of a steam generator, wherein for the steam generator a control model structure with the at least one characteristic model parameters is predetermined. Measurement signals of the steam generation process are recorded online. According to the invention, the at least one model parameters estimated on-line. For this purpose, both the real process as well as the model of the steam generator is applied to the same input signal. Subsequently, a assessable as a function of the analysis is carried out, wherein at least one output signal in each case of the process and / or of the model or at least one input signal by a comparative analysis with the aid of a gradient analysis is processed. On the basis of the gradient analysis, in a further step estimation regions defined, within which a valid parameter estimation is possible. The liquid assessable a positive effect is assessed, the current estimated value of the at least one model parameter is improved and furthermore in an iterative method, the model is adapted by means of the estimated values. The present invention also relates to a control device for a steam generator and a computer program product.