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This study presents a common single-phase diode rectifier for multi-load system. The advantages of common single-phase diode rectifier are simplicity, reliability, and cheapness. However, the diode rectifier draws significant harmonic current from the utility and lacks regeneration capability. Therefore, an auxiliary converter is proposed for the single-phase diode rectifier. The proposed auxiliary...
In recent years, voltage and current harmonic problems by the remarkable development of static power converters with nonlinear characteristics have been one of the significant subjects. The authors propose the three phase power quality compensator with five leg circuit by indirect power conversion method. This system can compensate the line voltage harmonics by the series inverter and the load current...
This paper is on wind energy conversion systems with full-power converter and permanent magnet synchronous generator. Different topologies for the power-electronic converters are considered, namely matrix and two-level converters. Also, a new fractional-order control strategy is proposed for the variable-speed operation of the wind turbines. Simulation studies are carried out in order to adequately...
The configuration and control of a dual-half-controlled-converter (DHCC) designed for a permanent magnet synchronous generator (PMSG) wind turbine are proposed in this paper. The system performance is analyzed using Saber simulations. The simulations results demonstrate that by using coordinated current regulation techniques, pure sinusoidal input current waveforms can be achieved and shared equally...
Static power converters produce harmonics due to the nature of the conversion process. This paper will investigate two variations of current mode control for three-phase power converters ensuring reduced harmonic pollution and power factor improvement. The first method employed uses a Fryze current reference and the second method utilises a balanced three-phase sinusoidal reference. Both control techniques...
This paper proposes a method to minimize the inverter ripple by active compensation of the low frequency harmonics using a buck current source with a bang-bang control. Remain power spectrum is spreading by chaotification of the buck voltage source command using a nonlinear transfer function for the control loop. Simulation results and designing methodology are presented.
An effective and practical two-stage technique for computer simulations of PWM DC/DC converters has been developed on the basis of a discrete time model, which allows both a simple and deep investigation of the circuits' dynamics and a fast and accurate ripple recovery. It is particularly useful in order to meet the designers' requirements especially in the earlier stages of the design, when besides...
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