Proceedings ArticleDOI
Three-Phase Unidirectional Transformerless Hybrid Rectifier with Boost Converter
José Teixeira Gonçalves,Stanimir Valtchev,Rui Melício,Mohammed Al-Saadi +3 more
- pp 158-163
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TLDR
In this paper, a three-phase hybrid rectifier is proposed, employing a boost converter without the addition of isolation transformer and output voltage control, where the boost inductor is replaced by a magnetically coupled inductor.Abstract:
In this paper, a three-phase hybrid rectifier is proposed, employing a boost converter without the addition of isolation transformer and output voltage control. This topology is usually considered to be not viable due to the current interactions. In order to mitigate those interactions, the boost inductor is replaced by a magnetically coupled inductor. The coupled inductor forces the balance between the two interconnected windings, placed at the positive and negative poles, and thus eliminating the current interactions. The results show that the proposed three-phase rectifier does not undergo a current interaction and functions as a hybrid rectifier. Furthermore, it was noted that the proposed rectifier at 20 kW presents an elevated power factor and a low total harmonic distortion.read more
Citations
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Journal ArticleDOI
Hybrid Three-Phase Rectifiers with Active Power Factor Correction: A Systematic Review
José Teixeira Gonçalves,Stanimir Valtchev,Rui Melício,Rui Melício,Rui Melício,Alcides Gonçalves,Frede Blaabjerg +6 more
TL;DR: The hybrid three-phase rectifiers are interesting because they allow using the GRAETZ full bridge topology in rectifier 1, thus taking advantage of its characteristics, being simple, robust, and reliable.
Journal ArticleDOI
Current Interactions Mitigation in 3-Phase PFC Modular Rectifier through Differential-Mode Choke Filter Boost Converter
TL;DR: A new differential-mode choke filter is implemented in the developed boost converter that eliminates the current interactions of a modular three-phase rectifier with boost converter for power factor correction (PFC) and promises a good PFC operation.
Journal ArticleDOI
Experimental installation of wireless power transfer system based on the series resonance technology
TL;DR: In this article, the impact of the primary and secondary resonance frequencies (f p and f d ), and inverter frequency switching (fch) on the efficiency (β) and maximum transfer power in a WPT system based on the inductive wireless power transfer (IWPT) technology was investigated.
Proceedings ArticleDOI
A New Mathematical Expression for Mutual Inductance of Two Coupled Ring Coils
TL;DR: In this paper, a mathematical formula of mutual inductance for a pair of ring coils was developed to be a function for the air gap between the coupled coils, coils dimensions, and misalignment parameters.
References
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Journal ArticleDOI
A new zero-ripple switching DC-to-DC converter and integrated magnetics
TL;DR: In this article, a new switching dc-to-dc converter is synthesized which consist of the least number of storage elements (inductive and capacitive) and switches, and yet truly emulates the ideally desired dc to dc transformer having both input and output currents as pure dc quantities with no ripple.
Proceedings ArticleDOI
AC to DC power conversion now and in the future
TL;DR: In this paper, the authors compare the present available converter technologies and provide an assessment of the advantages/disadvantages offered by each technology and make a comparison of traditional technologies and future technologies.
Journal ArticleDOI
Using magnetic coupling to eliminate right half-plane zeros in boost converters
TL;DR: In this paper, a dynamic analysis of the boost converter with an output filter reveals that magnetic coupling between inductors allows transfer of the zeros to the left half-plane of the control-to-output transfer function.
Proceedings ArticleDOI
Elimination of the positive zero in fixed frequency boost and flyback converters
TL;DR: In this paper, a fixed-frequency, leading-edge modulated pulse width modulation was proposed to eliminate the undesirable positive zero in practical boost and flyback converters, which allowed a substantial improvement in the closed-loop characteristics.
Journal ArticleDOI
Analysis and Implementation of a Hybrid High-Power-Factor Three-Phase Unidirectional Rectifier
R.L. Alves,I. Barbi +1 more
TL;DR: In this paper, the authors describe the conception and analysis of a unidirectional hybrid three-phase rectifier suitable for medium and high power applications, which is composed of a single-switch diode bridge boost-type rectifier in parallel with a pulsewidth modulation (PWM) 3-phase UFD rectifier, and the rectifier topology, principle of operation, control scheme, and simulation results of a 20kW laboratory prototype are also presented.