نتایج جستجو برای: phase converter

تعداد نتایج: 619443  

Journal: :Nigerian Journal of Technology 2014

2017
S. Satyanarayana

Design and implementation of a current controlled single stage single phase integrated AC/DC isolated Power Factor Correction (PFC) converter is presented in this paper. With the integrated topology reduces the number control switches. The proposed converter has the advantage of low bulk capacitor voltage and only single control switch hence reduce in complexity in control and cost. Sub-harmoni...

2017
Michael Hallworth Seyed Ali Shirsavar

The phase shift full bridge (PSFB) converter allows high efficiency power conversion at high frequencies through zero voltage switching (ZVS); the parasitic drain-to-source capacitance of the MOSFET is discharged by a resonant inductance before the switch is gated resulting in near zero turn-on switching losses. Typically, an extra inductance is added to the leakage inductance of a transformer ...

2003
E. BABAEI S. H. HOSSEINI

The conventional AC/AC matrix converter uses 9 bidirectional switches. The 3×3 switches give 512 combinations of switching states, which are decreased to only 27 feasible states, if the two basic rules (preventing the short-circuit and open-circuit) to operate the converters safely are applied. The output voltage of a basic matrix converter is limited to 866 . 0 2 3 ≈ of the input voltage. In t...

Journal: :IEEE Trans. Industrial Electronics 2013
Romero Leandro Andersen Ivo Barbi

In this paper, a ZVS-PWM three-phase current fed push–pull dc–dc converter with reduced harmonics is proposed. When compared to single-phase topologies, the three-phase dc–dc conversion increases the power density, uses the magnetic core of the transformer more efficiently, reduces the stress on switches, and requires smaller filters since the frequency for its design is higher. The proposed co...

2013
Yaopu Li Cong Wang Xu Zhao Kai Zhang

The paper presents a new STATCOM system based on H-bridge inverter. It can be used in mine power network. It has been commonly verified for the positive effects of SVG on the reactive power compensation and voltage fluctuation suppression. This paper focuses on a generalized structure of multilevel power converter where individual voltage sources are not necessarily the same. The cascade H-brid...

2016
Do-Hyun Kim Byung-Moon Han Jun-Young Lee

This paper describes a prototype of modularized three-phase semiconductor transformer that was developed in the lab for feasibility study. The developed prototype is composed of three units of single-phase semiconductor transformer coupled in Y-connection. Each single-phase unit has multiple units of high-voltage high-frequency resonant AC–DC converter, a low-voltage hybrid-switching DC–DC conv...

Journal: :Facta universitatis - series: Electronics and Energetics 2009

Journal: :IEEJ Transactions on Industry Applications 1991

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