Control Valves - Modeling and Simulation

摘要

The paper presents the researches of the authors in the modeling and the simulation of the control valves. The control systems with the control valves are complex structures and non-linear characteristics because the construction and the hydraulic phenomena associated of control valves. The authors have elaborated a mathematical model for the control valve. The model may be utilized to verify the work characteristic of the control valve for all operating points. The paper has four parts. First part describes the structure of the control valve. The second part contains the control valve model elaborated by the authors. The elements of the model are: the centrifugal pump model, the pipe model, the intrinsic and the work model of the control element. The third part is destined to elaboration of the simulation program. In the last part, the authors have presented and have analyzed the numerical results of the simulation.