An Engineering Interaction Measure with Application in Vapor Compression Cycle Control

In this paper, a new interaction measure and loop pairing criterion for decentralized control of multivariable processes, in which both steady-state gain and bandwidth information of the process open loop transfer function is summarized. Compared with existing methods, this method is simple, effective, and easy to understood and applied by control engineers. Further more, it is applied to the process assessment and control system design of vapor compression cycle, the method gives more accurate interaction measures and results in less conservative controllers than that of RGA detuning factor method