Brahim Metidji

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Matrix converters (MCs) are considered as a step forward in ac/ac conversion, providing sine-in and sine-out voltages and currents, controlled input power factor, compact sight without the requirement of a dc bus capacitor, and bidirectional power flows. There are also drawbacks associated with this technology: More switching devices and associated gate(More)
In this paper, a new fuzzy space vector modulation direct torque control strategy for induction machine based on indirect matrix converter is proposed. In the rectifier stage a space vector modulation strategy is employed. In the inverter stage two fuzzy logic regulators used to replace the classical PI regulators in PWM direct torque control method. In(More)
In this work, a new battery charger using ultra sparse matrix rectifier for the variable speed wind power system is proposed. The proposed algorithm tracks this electrical loading state for all-out power for a given wind situation and improve the input power factor and charging efficiency. The most important advantages of the proposed MPPT battery charger(More)
This paper proposes a modified fuzzy direct torque control scheme of induction motor fed by matrix converter to reduce the electromagnetic torque ripple which is one of the most important drawbacks of direct torque control. This DTC scheme based fuzzy logic regulation of the virtual DC voltage in the virtual rectifier stage output. The proposed enhanced(More)
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