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This paper presents a new mathematical model and a PWM switching technique for a three-phase grid-tie bidirectional DC-AC converter. The converter topology is designed based on linking an H-bridge to a three-to-single-phase matrix converter through a single-phase high-frequency transformer. The proposed mathematical model uses the trapezoidal waveform approximation for the high-frequency current waveform...
Variable-speed multiphase (more than three phases) drive systems have become an increasingly important topics compared with conventional three-phase one due to their distinct advantages. This paper presents a new PWM technique for controlling a three-to-five phase matrix converter in order to reduce switching losses and Total Harmonic Distortion (THD), simultaneously, by reducing the number of switching...
This paper presents a new controller for the sensorless linear induction motor (LIM) based on field oriented control driven by matrix converter. Conventional PI controlled has been employed for the speed control of mover. Speed estimation of the mover has been employed using Model Reference Adaptive System (MRAS) technique. The PWM switching technique of the matrix converter is designed based on minimum...
Multi-phase (more than three-phase) converters, required mainly for feeding variable speed multi-phase drive systems, are seen as serious contender to the existing three-phase drives due to their distinct advantages. This paper presents a new PWM technique for controlling the three-to-five phase matrix converter in order to achieve minimum switching loss and minimum harmonics, simultaneously, by reducing...
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