PERFORMANCE COMPARISON OF TWO CONTROLLERS ON A NONLINEAR SYSTEM Kenneth O.M. Mapoka1,Dr Tranos Zuva2,Howard Masebu3 and Keneilwe Zuva4 1,3,4 Department of Agricultural Engineering and Land Planning, Botswana College of Agriculture, Gaborone, Botswana 2Department of Computer Science, University of Tshwane, Pretoria, South Africa ABSTRACT Various systems and instrumentation use auto tuning techniques in their operations. For example, audio processors, designed to control pitch in vocal and instrumental operations. The main aim of auto tuning is to conceal off-key errors, and allowing artists to perform genuinely despite slight deviation off-key. In this paper two Auto tuning control strategies are proposed. These are Proportional, Integral and Derivative (PID) control and Model Predictive Control (MPC). The PID and MPC controller’s algorithms amalgamate the auto tuning method. These control strategies ascertains stability, effective and efficient performance on ...
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