Zero‐voltage‐switching DC/DC converter with three three‐level pulse‐width modulation circuit cells

Lin, Bor‐Ren; Chung, Shih-Kai; Shiau, Tung-Yuan

doi:10.1049/iet-pel.2012.0502

Cited by 7 publications

(4 citation statements)

References 19 publications

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“…However, the basic structure to which most of the other structures are inspired is the one introduced in [139] and shown in Fig. 14. Many of the converters have the NPC input stage endowed with a flying capacitor [140][141][142][143]148,[150][151][152][154][155][156][157][158]160,162]. Most of the input stages are composed of a single leg, but some of them have two [153,156,159,163] or three [147,149] legs.…”

Section: Ship Service Functional Blockmentioning

confidence: 99%

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A review of power electronics equipment for all-electric ship MVDC power systems

Castellan

Menis

Tessarolo

et al. 2018

International Journal of Electrical Power & Energy Systems

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Section: Ship Service Functional Blockmentioning

confidence: 99%

“…14. However (like in [138]), it sometimes has a simple two-winding structure supplying a diode-bridge [145,146,153], a three-phase structure [147,149,158,162], or a special multi-winding configuration [151,152,155].…”

Section: Ship Service Functional Blockmentioning

confidence: 99%

A review of power electronics equipment for all-electric ship MVDC power systems

Castellan

Menis

Tessarolo

et al. 2018

International Journal of Electrical Power & Energy Systems

View full text Add to dashboard Cite

“…where V f is the voltage drop on diodes D 1 -D 8 . Based on (3) and (6)- (8), the output voltage can be rewritten as …”

Section: Circuit Characteristicsmentioning

confidence: 99%

Interleaved ZVS DC/DC Converter with Balanced Input Capacitor Voltages for High-voltage Applications

Lin¹,

Chiang²,

Wang³

2014

Journal of Power Electronics

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A new DC/DC converter with zero voltage switching is proposed for applications with high input voltage and high load current. The proposed converter has two circuit modules that share load current and power rating. Interleaved pulse-width modulation (PWM) is adopted to generate switch control signals. Thus, ripple currents are reduced at the input and output sides. For high-voltage applications, each circuit module includes two half-bridge legs that are connected in series to reduce switch voltage rating to V in /2. These legs are controlled with the use of asymmetric PWM. To reduce the current rating of rectifier diodes and share load current for high-load-current applications, two center-tapped rectifiers are adopted in each circuit module. The primary windings of two transformers are connected in series at the high voltage side to balance output inductor currents. Two series capacitors are adopted at the AC terminals of the two half-bridge legs to balance the two input capacitor voltages. The resonant behavior of the inductance and capacitance at the transition interval enable MOSFETs to be switched on under zero voltage switching. The circuit configuration, system characteristics, and design are discussed in detail. Experiments based on a laboratory prototype are conducted to verify the effectiveness of the proposed converter.

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“…Threelevel pulse-width modulation (PWM) converters [2,3] have been developed with the main advantages of low voltage rating of power semiconductors, the balance input spilt voltages, and medium power applications. Soft-switching PWM techniques [4][5][6][7][8] including zero-voltage switching (ZVS) and zero-current switching (ZCS) have been proposed in three-level converters to reduce the switching losses on power semiconductors due to high switching frequency operation. Phase-shift PWM scheme is one of the most ZVS techniques to improve circuit efficiency in three-level converters.…”

Section: Introductionmentioning

confidence: 99%

Interleaved zero‐voltage switching three‐level converter with less output inductor counts

Lin

2017

IET Power Electronics

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An interleaved three-level converter with the new current doubler rectifier is proposed. The main advantages of the proposed converter are zero-voltage switching (ZVS) turn-on for all switches, low output ripple current and less voltage stress of the output diodes. Two three-level converters connected in parallel are used to decrease the input current ripple, as well as to reduce the current rating of power switches. At the secondary side, two current doubler rectifiers sharing the same output filter inductors to reduce the output current ripple. Compared with the conventional centre-tapped rectifier and current doubler rectifier, the adopted current doubler rectifier has less output current ripple. The output capacitance of the power switch and the leakage inductance (or external inductance) are resonant at the transition interval so that the power switches can be turned on under ZVS. The adopted converter can be employed in high voltage input and high current output applications. Experiments with a prototype with 750-800 V input and 48 V/30 A output are provided to verify the theory analysis.

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Zero‐voltage‐switching DC/DC converter with three three‐level pulse‐width modulation circuit cells

Cited by 7 publications

References 19 publications

A review of power electronics equipment for all-electric ship MVDC power systems

A review of power electronics equipment for all-electric ship MVDC power systems

Interleaved ZVS DC/DC Converter with Balanced Input Capacitor Voltages for High-voltage Applications

Interleaved zero‐voltage switching three‐level converter with less output inductor counts

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