Highly Efficient Single-Phase Three-Level Three-Leg Converter Using SiC &lt;sc&gt;mosfet&lt;/sc&gt;s for AC–AC Applications

Kwon, Owon; Kwon, Jung-Min; Kwon, Bong-Hwan

doi:10.1109/tie.2018.2793231

Cited by 51 publications

(5 citation statements)

References 23 publications

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“…In [23], the design of a three-phase AC-AC NPC converter connected between the grid and the AC loads has been proposed. From the carried-out analysis, an efficiency of 88% has been declared with a power of 610 W and DC-bus of 100 V. The single-phase AC-AC 3 kW T-Type converter has been analyzed and implemented in [24] for UPS applications. Using SiC power semiconductors, the maximum efficiency of the proposed converter is 99.0% and its efficiency at the rated power is 98.6%.…”

Section: State Of the Artmentioning

confidence: 99%

Design of SiC-Si Hybrid Interleaved 3-Phase 5-Level E-Type Back-to-Back Converter

di Benedetto,

Lidozzi,

Grbović

2023

IEEE Open J. Power Electron.

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In modern applications, such as variable frequency electric drives, aircraft propulsion, electric vehicles, and uninterruptible power supply units, high power-dense, and efficient AC-AC power converters are the key to reducing power losses, thus limiting the overall costs, and improving the system's reliability. Power electronic equipment can be enhanced thanks to the continuous evolution of conversion topologies and advancements in power semiconductor technology. The design and the optimization strategy of the AC-AC 5-Level converter, called Interleaved 3-Phase 5-Level E-Type Back-to-Back Converter (I-3Φ5L BTB E-Type Converter), has been proposed in this paper. The converter is analyzed and experimentally characterized to prove the configuration's high efficiency and high-power density. An introduction to the characteristics of the I-3Φ5L BTB E-Type Converter is described, and afterward, the optimization methodology to design the multilevel converter is presented. The converter prototype is illustrated, which achieves a peak efficiency of 98.2% and a total weight of 6.18 kg using hybrid technology for power semiconductors..

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Section: State Of the Artmentioning

confidence: 99%

Design of SiC-Si Hybrid Interleaved 3-Phase 5-Level E-Type Back-to-Back Converter

di Benedetto,

Lidozzi,

Grbović

2023

IEEE Open J. Power Electron.

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“…As shown in Fig. 30, a 3L three-leg converter based on the T-type structure was proposed [107] . Unlike the previous bridge structure, the switching devices bearing a high-voltage stress are replaced by SiC MOSFETs, whereas other switching devices are still Si devices.…”

Section: Hybrid Applications Under Special Circuitsmentioning

confidence: 99%

A review of WBG and Si devices hybrid applications

Zhang

Zheng

Lou

2021

Chin. J. Electr. Eng.

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In recent years, next-generation power semiconductor devices, represented by silicon carbide (SiC) and gallium nitride (GaN), have gradually emerged. Because wide-bandgap (WBG) devices have better electrical characteristics than those of silicon (Si) based devices, they have attracted increased attention both from academic researchers and industrial engineers. Employing WBG devices will further improve the efficiency and power density of power converters. However, the current price of WBG devices remains extremely high. Thus, some researches have focused on the hybrid utilization of WBG devices and Si-based devices to achieve a tradeoff between the performance and cost. To summarize the current research on WBG/Si hybrid applications, the issues mentioned above with representative research approaches, results, and characteristics, are systematically reviewed. Finally, the current research on WBG/Si hybrid applications and their future trends are discussed.

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“…The mean age within studies was 55.0 6 6.0 years, and the mean follow-up duration was 3.2 years. The largest study had 2035 patients, 10 and the smallest study had 13 patients. 11 Four studies were multicenter, 10,12-14 and 20 were single-center studies.…”

Section: Literature Searchmentioning

confidence: 99%

Long-Term Rupture Risk in Patients with Unruptured Intracranial Aneurysms Treated with Endovascular Therapy: A Systematic Review and Meta-Analysis

Rizvi

Seyedsaadat²,

Alzuabi³

et al. 2020

AJNR Am J Neuroradiol

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BACKGROUND: Surveillance imaging of previously unruptured, coiled aneurysms remains routine even though reports of rupture of these aneurysms are extremely rare. PURPOSE:We performed meta-analysis to examine long-term rupture risk over $1-year follow-up duration in patients with unruptured intracranial aneurysm who underwent endovascular therapy.DATA SOURCES: Multiple databases were searched for relevant publications between 1995 and 2018.STUDY SELECTION: Studies reporting outcome of long-term rupture risk over $1-year follow-up in treated patients with unruptured intracranial aneurysms were included.DATA ANALYSIS: Random effects meta-analysis was used, and results were expressed as long-term rupture rate per 100 patient-year with respective 95% CIs. For ruptured aneurysms during follow-up, data were collected on size and completeness of initial Treatment.DATA SYNTHESIS: Twenty-four studies were identified. Among 4842 patients with a mean follow-up duration of 3.2 years, a total of 12 patients (0.25%) experienced rupture of previous unruptured intracranial aneurysms after endovascular treatment. Nine of these 12 patients harbored aneurysms that were large, incompletely treated, or both. A total of 2 anterior circulation, small, completely coiled aneurysms subsequently ruptured. The long-term rupture rate per 100 patient-year for unruptured intracranial aneurysms treated with endovascular therapy was 0.48 (95% CI, 0.45-0.51). Retreatment was carried out in 236 (4.9%) of these 4842 patients. LIMITATIONS:A limitation of the study is that a lack of systematic nature of follow-up and mean follow-up duration of 3.2 years are not sufficient to make general recommendations about aneurysm followup paradigms.CONCLUSIONS: Given a 5% retreatment rate, postcoil embolization spontaneous rupture of previously unruptured, small-and medium-sized, well-treated aneurysms is exceedingly rare.

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Highly Efficient Single-Phase Three-Level Three-Leg Converter Using SiC <sc>mosfet</sc>s for AC–AC Applications

Cited by 51 publications

References 23 publications

Design of SiC-Si Hybrid Interleaved 3-Phase 5-Level E-Type Back-to-Back Converter

Design of SiC-Si Hybrid Interleaved 3-Phase 5-Level E-Type Back-to-Back Converter

A review of WBG and Si devices hybrid applications

Long-Term Rupture Risk in Patients with Unruptured Intracranial Aneurysms Treated with Endovascular Therapy: A Systematic Review and Meta-Analysis

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