Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Ravisekhar Nadimpalli Raju"'
Publikováno v:
2021 IEEE Electric Ship Technologies Symposium (ESTS).
This paper presents the design of a 250 kW integrated power electronics building block (iPEBB) for future electric ship application. This work focuses on the motivation, design choices, and initial prototyping of a 500 kHz transformer and 1.7 kV SiC
Publikováno v:
IEEE Transactions on Industry Applications. 55:6223-6233
This paper presents a novel control strategy to significantly reduce the high-frequency transformer loss in a modular solid-state transformer (SST) based converter system. The modular SST design is based on an ac–dc power-electronic building block
Autor:
Rajib Datta, John Stanley Glaser, Xu She, Ravisekhar Nadimpalli Raju, Yehuda Levy, Ramanujam Ramabhadran
Publikováno v:
IEEE Transactions on Industry Applications. 52:4096-4107
Power density and size are important features in compact ac–dc power adapters today. The push for power density, however, requires high conversion efficiency to reduce thermal stresses and smaller magnetics to fit into the required volume. Flyback
Publikováno v:
2018 IEEE Energy Conversion Congress and Exposition (ECCE).
The high frequency transformer is a critical component of the isolated DC-DC converters in high-frequency, medium-voltage solid-state transformer. The adoption of wide band gap semiconductor allows for devices to switch at much higher frequencies. Th
Publikováno v:
2018 IEEE Energy Conversion Congress and Exposition (ECCE).
This paper presents a novel control strategy for high-frequency transformer loss reduction in modular solid-state transformer (SST) based converter system. The modular SST design is based on an ac-dc power-electronic building block (PEBB) comprised o
Autor:
Zheyu Zhang, Ravisekhar Nadimpalli Raju, Terry Ericsen, Fei Wang, Dushan Boroyevich, Rolando Burgos
Publikováno v:
Proceedings of the IEEE. 103:2285-2311
This paper presents some of the key advances in power electronics pertaining to shipboard electric power system applications. The focus is on the emerging wide bandgap semiconductor devices, i.e., silicon carbide (SiC) and gallium nitride (GaN) devic
Autor:
Ravisekhar Nadimpalli Raju
Publikováno v:
2017 IEEE 12th International Conference on Power Electronics and Drive Systems (PEDS).
Series resonant converters are widely used in applications such as transformer-isolated DC-DC conversion and induction heating. The resonant capacitor in these converters is often a difficult component since it requires high current-handling capabili
Publikováno v:
2017 IEEE 12th International Conference on Power Electronics and Drive Systems (PEDS).
Solid-state transformers (SSTs) that process power through power electronics and high frequency transformers are an interesting alternative to line-frequency transformers. In addition to weight and possibly size reduction, solid-state transformers ca
Autor:
Terry Ericsen, Rolando Burgos, Ravisekhar Nadimpalli Raju, Sharon Beermann-Curtin, Dushan Boroyevich
Publikováno v:
2015 IEEE 3rd Workshop on Wide Bandgap Power Devices and Applications (WiPDA).
This paper presents the evolution, state of the art, and prospective future of Silicon-Carbide (SiC) based power electronics conversion for shipboard electrical power systems. The latter, having fully profited from the integrated power system (IPS) a
Autor:
Ramanujam Ramabhadran, Ravisekhar Nadimpalli Raju, Yehuda Levy, Xu She, John Stanley Glaser, Rajib Datta
Publikováno v:
2015 IEEE Energy Conversion Congress and Exposition (ECCE).
In this paper, we present the design and fabrication of a high density laptop adapter with a Clamped Series Resonant Converter (CSRC), as a possible alternative to traditional Flyback converters for power adapters in portable electronics. The target