STM Journals Peer-reviewed research from Consortium e-Learning Network

Journal of Control & Instrumentation

MODELING AND IMPLEMENTATION OF LABVIEW BASED NONLINEAR PICONTROLLER FOR A CONICAL TANK

  1. J. Satheesh Kumar
  2. P Poongodi
  3. K Rajasekaran

Abstract

The control of liquid level in tank is a basic problem in process industries. The conical tank level process isconsidered to be a non-linear process. The control of conical tank is presenting a challenging problem dueto its non-linearity. The modeling aspect of conical tank is discussed in this paper. The piecewise response ofthe system is studied and the gain and time constants for the different regions were tabulated. A structure ofwiener based nonlinear controller is developed using LabVIEW and it is implemented in real time. Theresponse of the wiener based nonlinear controller is compared with the classical PI controller.Key words: Nonlinear PI controller, Wiener Model, Conical Tank
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