Modelling DC Motor Variables (Voltage, Torque, Efficiency) To Compare Between Nelder-Mead Method And Powell's Method Of Optimization

Mohd Aizat, Zailan (2012) Modelling DC Motor Variables (Voltage, Torque, Efficiency) To Compare Between Nelder-Mead Method And Powell's Method Of Optimization. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The project was undertaken to find the optimum efficiency for the Compound Excited DC motor. Compound Excited DC motor is used as a model for this project because the type of motor is widely used in industries. In addition, another factor the project prompted to use the Compound Excited DC motors because is efficiency. However, we are as consumers will not know the range of independent variables for suitable used to obtain the optimum efficiency for Compound Excited DC motors. Because of that, this project will be tried to find the suitable range of the torque and input voltage to generate a maximum efficiency of the Compound Excited DC Motor. To obtain optimum efficiency for DC motor, the project will use two methods of Numerical Optimization such as Nelder-Mead method and Powell’s method. Finally, both of these methods will be compared in the efficiency and accuracy. As conclusion for this research, the range of voltage and torque for minimum efficiency compounded excited DC motor will be obtained. For the Nelder Mead Method, the range is 171.88V and 0.45Nm will be generating minimum efficiency 0.0156 equal to 64.1% for compounded excited DC motor. However for Powell’s method is more better because the minimum efficiency obtained is 0.01379766 equal to 72.5% by using range 154.915V and 0.41Nm

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