Cascaded Superheat Control with a Multiple Evaporator Refrigeration System Conference Paper

abstract

• Variable refrigerant flow (VRF) systems are increasingly being used in commercial buildings in preference to chilled water or ducted air systems. The closely coupled dynamics of VRF systems, however, create a need for effective control strategies to ensure safe and effective operation. Of particular interest is the regulation of evaporator superheat. In this paper a cascaded architecture for controlling superheat is applied to a multiple evaporator system, and compared to traditional PID-controlled evaporators. The effects of the architecture on dynamic coupling are explored, and efficacy is demonstrated with experimental results. 2011 AACC American Automatic Control Council.

name of conference

• Proceedings of the 2011 American Control Conference

authors

• Rasmussen, Bryan

published proceedings

• 2011 AMERICAN CONTROL CONFERENCE

author list (cited authors)

• Elliott, M. S., Estrada, C., & Rasmussen, B. P.

citation count

• 6

complete list of authors

• Elliott, Matthew S||Estrada, Carolyn||Rasmussen, Bryan P

publication date

• January 2011

publisher

• Institute of Electrical and Electronics Engineers (IEEE)  Publisher

published in

• Proceedings of the ... American Control Conference. American Control Conference  Journal

Digital Object Identifier (DOI)

• 10.1109/acc.2011.5990949

International Standard Book Number (ISBN) 13

• 9781457700804

start page

• 2065

end page

• 2070

URL

• http://dx.doi.org/10.1109/acc.2011.5990949