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This paper presents a Single-Phase Matrix Converter (SPMC), using 4-units of bidirectional, Power MOSFET-Power Diode as main power switching devices. The converter can directly convert the utility 1-phase sinusoidal supply voltage and frequency into a variable frequency and variable voltage of a variable PWM pattern by adjusting the frequency and modulation index of the PWM control signal that have...
This paper proposes the high-voltage high-frequency power supply for an ozone generator using a phase-shift pulse width modulation (PWM) full bridge inverter with constant applied electrode voltage. The circuit operation is fully described. The high-frequency transformer and ozone generator mathematical models are also included for preliminarily calculating of instantaneous voltages and currents....
This paper presents a performance comparison of an asymmetrical parameter type two-phase induction motor supplied with balanced and unbalanced phase voltages using a three-leg voltage source inverter (VSI). Sinusoidal pulse width modulation (SPWM) method with constant V/F control is used for the two phase three leg inverter. Simulation and experimental results are used to evaluate the motor performance...
This paper presents a simple speed control method of an asymmetrical parameter type two-phase induction motor drive using a three-leg voltage source inverter (VSI). The two-phase induction motor is adapted from an existing single-phase induction motor resulting in impedance unbalance between main and auxiliary windings. Thus in order to improve the performance it needs an unbalanced phase supply....
This paper proposes the high-voltage high-frequency power supply for an ozone generator using a phase-shifted pulse width modulation (PWM) full bridge inverter. The circuit operation is fully described. The high-frequency transformer and ozone generator mathematical models are also included for preliminarily calculating of instantaneous voltages and currents. The proposed system simulation using the...
This paper proposes the high frequency high voltage power supply for an ozone generator using a phase-shift pulse width modulation (PWM) full bridge inverter. The circuit operation is fully described. The high frequency transformer and ozone generator mathematical models are also included for preliminarily calculating of instantaneous voltages and currents. The proposed system simulation using the...
This paper proposes the analysis and modelling of an ozone generator using a phase-shift pulse width modulation (PWM) full bridge inverter as a power supply. The circuit operation is fully described. The high frequency transformer and ozone generator mathematical models are also included for preliminarily calculating of instantaneous voltages and currents. The proposed system simulation using the...
This paper proposes the investigation on the performance between standard and high efficiency induction machines operating as grid connected induction generators having same rating of three phase, 2.2kW, 220/380V, 4-poles for supplying electric power to utility grid. Analysis and comparative study on operating of induction generators under transient and steady state conditions at no-load and full-load...
This paper proposes the design and construction of three phase, 220/380 V, 3.4/2.0 A, Delta/Y connected, 4 poles, 0.75 kW a self-exited induction generator (SEIG). Analysis of the designed SEIG uses a finite element method. The designed SEIG has been tested and compared with a standard SEIG under operating conditions such as no-load and on-load with pure resistive load. Consideration of capacitance...
This paper proposes an ozone generator using a phase shift PWM full bridge inverter. The advantage of the proposed system is capable of varying ozone gas level by varying frequency of the converter whilst the output voltage is kept to be constant. In order to obtain such condition, the pulse width of the output voltage is varied. The gate signals are controlled by a microcontroller. The performance...
This paper presents harmonic loss considerations in a PWM multilevel cascaded H-bridge inverter fed induction motor. A non-sinusoidal waveform or voltage harmonic has influence on efficiency and performance of a drive system. Harmonic voltages depend upon PWM parameters such as modulation index, switching frequency, PWM schemes, and dc voltage levels etc. The comparison of additional losses between...
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