Abstract
In this paper, nonlinear model predictive control (NMPC) has been used to control an induction motor (IM). The IM model that is used in the control is third or fifth order model that is based in th...
Highlights
The induction motor (IM) and its control have been widely researched in the last three decades due to many reasons; the IM is less expensive compared to other motors types, so the IM can be used ABOUT THE AUTHORJasem Tamimi is an assistant professor at the Department of Mechanical Engineering at Palestine Polytechnic University, Hebron, Palestine
The optimal control is formulated by defining a performance index to be minimized subject to the set of the differential algebraic equations (DAEs), initial conditions as well as box constraints on the state and control variables. This optimal control problem must be defined along the prediction horizon, say Tp
Simulation results we demonstrate the efficiency of the proposed strategy
Summary
The induction motor (IM) and its control have been widely researched in the last three decades due to many reasons; the IM is less expensive compared to other motors types, so the IM can be used. In this work we use the original nonlinear model of the induction motor to formulate the nonlinear optimal control problem Both flux components are not assumed to be zeros, but they are considered state variables in the nonlinear model predictive control problem. In this work we use the original nonlinear model of the IM to formulate the nonlinear optimal control problem That is, both flux components are not assumed to be zeros, but they are considered state variables in the NMPC problem. The optimal control is formulated by defining a performance index to be minimized subject to the set of the DAEs, initial conditions as well as box constraints on the state and control variables This optimal control problem must be defined along the prediction horizon, say Tp. Using the MPC, first part the optimal control is only applied to the plant (IM) over the control horizon Tc (where Tc < Tp). In both cases the motor speed reaches the desired speed within 0.2 s
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