Controller Design for a Class of Nonlinear Discrete Networked Cascade Control Systems With Time-Varying Delay

The problem of a class of nonlinear discrete networked cascade control systems (NCCSs) with time-varying delay is studied. Firstly, a model of discrete NCCS is established. The secondary controller object is regarded as a nonlinear system, and a new NCCS model is established. Based on this model, time delay are fully considered, and two gain of proportional (P) controllers are co-designed by using linear inequality technique. Taking a thermal power plant as an example, the effectiveness of the proposed collaborative design method is verified.