Thermal Model Reduction Using Balanced Realisation in a Substructuring Approach

Abstract

This paper deals with the reduction of high dimensional state-space models of thermal systems. The balanced realisation is used in a substructuring approach allowing a modular description of a complex thermal system. The reduction of a high order model is substituted with the reduction of a set of several low order models. The approach is applied to a 3 zones building model described by 264 equations and reduced to 6 equations.