Amissa Arifin | Massey University (original) (raw)
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Papers by Amissa Arifin
A Switched Reluctance Generator (SRG) system normally encompasses three main components: SR machi... more A Switched Reluctance Generator (SRG) system normally encompasses three main components: SR machine, controller and converter. On-going research on simulation and modelling of SRG system has focused on one component. There is a lack of a more comprehensive approach which integrates all three components into one simulation platform. We have developed a simulation model comprising SR machine, control and converter using MATLAB/Simulink. The main advantage of a simulation model is to reduce time and cost by having to perform changes on the prototype machine. In this paper, the work is focused on developing the optimal control algorithm for the platform. Optimal parameters are identified and characterized in terms of highest percentage of power generated. From simulation, the most influential parameters affecting the power generated are the firing angles and voltage level. So, a function relating the optimized parameter with machine performance was developed. The proposed control techni...
Field analysis in conjunction with circuit model has been used to predict the performance of a sw... more Field analysis in conjunction with circuit model has been used to predict the performance of a switched reluctance machine. This paper describes the procedure to model a 3 phase 12/16 Switched Reluctance (SR) machine. Its operation as a generator is analyzed. An accurate representation of machine requires good representation of its magnetic characteristics. With the advent of high speed computing, numerical method is used to take into account its nonlinear characteristics. In this research, a 2D Finite Element Method (FEM) is used to determine the magnetic characteristics of the machine. Results from FEM are used as Look Up LUT) for simulation using MATLAB/SIMULINK. Using the same machine parameters and current density, the influence of different phase winding polarity on the performance of an SR machine operating as a generator under single phase excitation is observed. Optimum performance/high efficiency can be achieved by using different phase winding polarity.
A Switched Reluctance Generator (SRG) system normally encompasses three main components: SR machi... more A Switched Reluctance Generator (SRG) system normally encompasses three main components: SR machine, controller and converter. On-going research on simulation and modelling of SRG system has focused on one component. There is a lack of a more comprehensive approach which integrates all three components into one simulation platform. We have developed a simulation model comprising SR machine, control and converter using MATLAB/Simulink. The main advantage of a simulation model is to reduce time and cost by having to perform changes on the prototype machine. In this paper, the work is focused on developing the optimal control algorithm for the platform. Optimal parameters are identified and characterized in terms of highest percentage of power generated. From simulation, the most influential parameters affecting the power generated are the firing angles and voltage level. So, a function relating the optimized parameter with machine performance was developed. The proposed control techni...
Field analysis in conjunction with circuit model has been used to predict the performance of a sw... more Field analysis in conjunction with circuit model has been used to predict the performance of a switched reluctance machine. This paper describes the procedure to model a 3 phase 12/16 Switched Reluctance (SR) machine. Its operation as a generator is analyzed. An accurate representation of machine requires good representation of its magnetic characteristics. With the advent of high speed computing, numerical method is used to take into account its nonlinear characteristics. In this research, a 2D Finite Element Method (FEM) is used to determine the magnetic characteristics of the machine. Results from FEM are used as Look Up LUT) for simulation using MATLAB/SIMULINK. Using the same machine parameters and current density, the influence of different phase winding polarity on the performance of an SR machine operating as a generator under single phase excitation is observed. Optimum performance/high efficiency can be achieved by using different phase winding polarity.