Casper Andersen

Learn More
An on-line nonlinear FOPDT system identification method is proposed and applied to model the superheat dynamic in a supermarket refrigeration system. The considered nonlinear FOPDT model is an extension of the standard FOPDT model by means that its parameters are time dependent. After the considered system is discretized, the nonlinear FOPDT identification(More)
An online PI auto-tuning method is proposed for superheat control for a type of supermarket refrigeration systems. the proposed procedure consists of three serial steps: Step-One uses one of the two proposed empirical methods, namely multi-step method and relay method, for modeling initialization. The objective is to guide the initial (superheat) operation(More)
Theme: Digital signal processing applied on signals of acoustic origin Abstract The application of adaptive filters in feedback cancellation in vented and unvented hearing aids (HA), together with their feedback path properties when worn by a head and torso simulator, have been analyzed and studied in this project. A vented and an unvented in the ear (ITE)(More)
  • 1