Zero-voltage-switching three-phase single-stage power factor correction convertor

Panov, Y.; Cho, J.G.; Lee, F.C.

doi:10.1049/ip-epa:19971233

Cited by 6 publications

(6 citation statements)

References 2 publications

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“…As can be seen the prototype converter shows good performance in conversion efficiency, especially under full load (3kW). Compared with other methods it can bee seen that: 1) the efficiency of this snubber is higher than that of a traditional RCD snubber and the passive snubbers in [22], [23], 2) the efficiency of this snubber is similar to that of the active clamping circuits in [17]- [20] and the passive clamping circuit in [21], while the reliability is much higher. …”

Section: Resultsmentioning

confidence: 99%

“…Theoretical analysis and experimental results show that the voltage spike can be suppressed efficiently after the adoption of the snubber which can also overcome the drawbacks of the methods in [17]- [23].…”

Section: Introductionmentioning

confidence: 99%

“…A method based on the active clamping technique is introduced in [17]- [20], a passive clamping technique is proposed in [21] and a passive snubber is investigated in [22], [23]. The voltage spike is efficiently suppressed after the adoption of each of the above methods.…”

Section: Introductionmentioning

confidence: 99%

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Novel Passive Snubber Suitable for Three-Phase Single-Stage PFC Based on an Isolated Full-Bridge Boost Topology

Tao¹,

Ben²,

Wang³

et al. 2011

Journal of Power Electronics

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In this paper a novel passive snubber is proposed, which can suppress the voltage spike across the bridge leg of the isolated full-bridge boost topology. The snubber is composed of capacitors, inductors and diodes. Two capacitors connected in series are used to absorb the voltage spike and the energy of each capacitor can be transferred to the load during one switching cycle by the resonance of the inductors and capacitors. The operational principle of the passive snubber is analyzed in detail based on a three-phase power factor correction (PFC) converter, and the design considerations of both the converter and the snubber are given. Finally, a 3kW laboratory-made prototype is built. The experimental results verify the theoretical analysis and evaluations. They also prove the validity and feasibility of the proposed methods.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Novel Passive Snubber Suitable for Three-Phase Single-Stage PFC Based on an Isolated Full-Bridge Boost Topology

Tao¹,

Ben²,

Wang³

et al. 2011

Journal of Power Electronics

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“…(DCM) of the input current, which poses many design and control challenges [10], [13]. Reference [15] proposed a novel three-phase AC-DC isolated converter in this context, which, despite being a single-stage topology, features continuous conduction mode (CCM) of the input current.…”

Section: Introductionmentioning

confidence: 99%

Improvement of ZVS Range and Current Quality of the Nine-Switch Single-Stage AC–DC Converter

Ali

Dube

Das

et al. 2020

IEEE Trans. Power Electron.

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The nine-switch single-stage three-phase AC-DC isolated converter integrates a three-phase active front end (AFE) AC-DC converter and a three-phase high frequency galvanic isolated DC-DC converter in one stage, leading to a devicecount reduction of 25% compared to an equivalent two-stage configuration. The advantage of the nine-switch converter can be truly realized if it can achieve similar efficiency and input current quality as a two-stage converter. In this paper a design methodology is proposed which ensures zero-voltage switching (ZVS) of the bottom and the middle switches of the nineswitch converter for the entire line-cycle, and also reduces its input current total harmonic distortion (THD) below 5%. By implementing space vector pulse-width modulation (SVPWM) the DC-link voltage of the nine-switch converter is reduced to the level of an equivalent two-stage converter. The analytical claims are verified with a 3 kW laboratory prototype operating at 400V AC input, 800V DC-link voltage, and 380V isolated DC output voltage.

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“…It will results in cost increment. Some single-stage three-phase AC-DC converters have been developed to acquire low THD i , unity power factor, and low cost [7]- [8]. However, the DC-link voltage of these single-stage converters is too high.…”

Section: Introductionmentioning

confidence: 99%

Study and implementation of a single-stage three-phase AC-DC converter

Yang

Liang

et al. 2009

2009 IEEE 6th International Power Electronics and Motion Control Conference

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A single-stage three-phase AC-DC converter is presented in this paper. The front semi-stage of the proposed converter, which is operated in discontinuous conduction mode (DCM), is utilized for power factor correction and the rear semi-stage of the proposed converter, which is operated in continuous conduction mode (CCM) at heavy loads and in DCM at light loads, is employed for step-down voltage conversion. The proposed converter can achieve almost unity power factor, low total harmonic distortion of input current (THD i ), and adjustable DC output voltage. The voltage stress across the DC-link capacitor is low. Moreover, the steady-state analyses of voltage gain and the boundary operating condition are discussed. Finally, experimental results are provided to verify theoretical analyses.I.

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Zero-voltage-switching three-phase single-stage power factor correction convertor

Cited by 6 publications

References 2 publications

Novel Passive Snubber Suitable for Three-Phase Single-Stage PFC Based on an Isolated Full-Bridge Boost Topology

Novel Passive Snubber Suitable for Three-Phase Single-Stage PFC Based on an Isolated Full-Bridge Boost Topology

Improvement of ZVS Range and Current Quality of the Nine-Switch Single-Stage AC–DC Converter

Study and implementation of a single-stage three-phase AC-DC converter

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