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Author: search.filters.author.Rujidam, Navee

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    A Two-Phase Induction Generator System using the Vector Control Technique
    (2024-01-01)
    Rujidam, Navee
    ;
    Jamshidpour, Ehsan
    ;
    Kinnares, Vijit
    ;
    Baghli, Lotfi
    ;
    Takorabet, Noureddine
    This paper proposes a vector control drive system for a two-phase induction generator. The system comprises a single-phase full-bridge grid converter and a two-phase three-leg voltage source inverter, both controlled using vector control. The grid converter utilizes voltage-oriented control, the inverter is managed through field-oriented control. This approach enhances the electromagnetic torque performance of the two-phase induction generator. The system is simulated using MATLAB/Simulink, and the simulation results indicate that the generator torque exhibits a smooth and fast transient response. Additionally, the grid current of the system closely approximates a sinusoidal waveform with a near unity power factor.
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    Slip regulation control of an unsymmetrical two-phase induction motor coupling with DC generator using torque control
    (2019-07-01)
    Rujidam, Navee
    ;
    Piyarat, Wekin
    ;
    Kinnares, Vijit
    This paper proposes an unsymmetrical two-phase induction motor propulsion coupling with separately-excited DC generator by Matlab/Simulink. This propulsion composes of two parts. One is two-phase three-leg voltage source inverter by means of continuous unbalanced space vector pulse width modulation for the induction motor, which is controlled by slip regulation control. The other is four-quadrant DC chopper supplied with constant DC-link voltage of a three-phase grid-connected converter, which feed into armature winding of the DC generator using torque control. The simulation results was found that the induction motor was capable of constant speed at 1,450 rpm while taken load at 10 Nm with torque control of the four-quadrant DC chopper for DC generator. Furthermore, The DC generator was able to flow power to grid by the grid-connected converter. To conclude, the propulsion is good, since grid current in the generator drive part was nearly sinusoidal waveform and power in the same part can flow to grid, which can save energy and improve power factor.
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    Vector control system for asymmetrical two-phase induction motor drives
    (2016-01-18)
    Rujidam, Navee
    ;
    Promkhun, Watcharin
    ;
    Chaiyot, Rungwicha
    ;
    Kinnares, Vijit
    This paper presents a drive system of asymmetrical two - phase induction motors (TPIMS), which is able to operate in four quadrants. A front end converter connected with grid allows bidirectional power flow for rectification and inversion modes based on vector control to keep dc link voltage constant. A machine side converter uses a three - leg voltage source inverter based on a space vector pulse width modulation technique. The control strategy is based on indirect field oriented control for good dynamic response. The proposed system is simulated by Matlab/Simulink. Simulation results show that the proposed system is able to operate in four quadrants and torque performance is good. Grid current waveform is close to sinusoidal and grid power factor is nearly unity. In a braking condition the system allows power flow to grid for energy saving.