Modeling and Control of Power Flow for Transient Thermal Systems

Abstract

This talk examines the transient modeling of power flow for transient thermal systems. The focus is on dynamic phenomena starting with a basic thermodynamic cycle and building up to more complex systems. The overall goal of the modeling process is to develop systems-level models that are sufficiently flexible to be used on a variety of different applications. These models balance complexity with accuracy to obtain models that are sufficient for dynamic optimization and design as well as control algorithms 
In addition to the modeling approach we present control strategies aimed at managing the flow of thermal power. We present a particular hierarchical approach to power flow that accommodates multiple power modes. The hierarchy allows for systems operating on different time scales to be coordinated. It also allows for different control tools to be used at different levels of the hierarchy based on the needs of the physical systems under control. Stability results exploit the system structure to provide guarantees. Recent results will be presented representing both interconnected complex systems with specific examples from industrial partners.