State-space modeling of power assemblies for advanced thermal management solutions

This paper presents the state-space thermal modeling of a multi-chip power module for use in the development of innovative temperature control and regulation approaches. The goal is to develop a multivariable state-feedback controller incorporating observers for estimating the temperature at locations which cannot be realistically monitored in the practice. The controller design is based on a full state feedback approach and can greatly contribute to reduce the in-service degradation of power assemblies, extending their operational lifetime.