| Presentation | 2013-01-24 On the Parallel Operation of LLC Current-Mode Resonant Converters in High-Voltage DC Power Distribution Systems Daiki KAWAHARA, Seiya ABE, Satosi MOTOMURA, Kazuhide DOMOTO, Yoichi ISHIZUKA, Tamotsu NINOMIYA, Masahito SHOYAMA, Masato KAGA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Recently the scale of date center is going larger with rapid increase in the amount of information traffic. As the result, the power consumption at date centers is rapidly increased. Therefore, the High-Voltage DC(HVDC) power distribution system is examined for saving power consumption at date centers. Here, it is assumed that a high-efficiency, high-power-density DC-DC converter is used in the input rectifier stage of an HVDC power supply system. This paper presents a scheme of the usage of an LLC current-mode resonant converter as the high-efficiency, high-power-density DC-DC converter mentioned above. This LLC resonant converter has prominent features of high efficiency and low noise at medium power capacity. On the other hand, at higher power capacity, the power efficiency deteriorates due to higher peak current, and it is difficult to fabricate a higher-power converter as a single body. In this scheme, multiple LLC current resonant converters of 1 to 2kW are connected in parallel in order to increase the total power. The research target of this paper is to check the parallel operation of multiple LLC resonant converters with different circuit parameters and switching frequencies. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | HVDC power distribution system / LLC current-mode resonant converter / parallel operation / soft switching high efficiency and high power density |
| Paper # | EE2012-32,CPM2012-154 |
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| Conference Information | |
| Committee | EE |
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| Conference Date | 2013/1/17(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Energy Engineering in Electronics and Communications (EE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | On the Parallel Operation of LLC Current-Mode Resonant Converters in High-Voltage DC Power Distribution Systems |
| Sub Title (in English) | |
| Keyword(1) | HVDC power distribution system |
| Keyword(2) | LLC current-mode resonant converter |
| Keyword(3) | parallel operation |
| Keyword(4) | soft switching high efficiency and high power density |
| 1st Author's Name | Daiki KAWAHARA |
| 1st Author's Affiliation | Graduate School of Engineering, Nagasaki University() |
| 2nd Author's Name | Seiya ABE |
| 2nd Author's Affiliation | International Center for Study of East-Asia Development |
| 3rd Author's Name | Satosi MOTOMURA |
| 3rd Author's Affiliation | Graduate School of Engineering, Nagasaki University |
| 4th Author's Name | Kazuhide DOMOTO |
| 4th Author's Affiliation | Graduate School of Engineering, Nagasaki University |
| 5th Author's Name | Yoichi ISHIZUKA |
| 5th Author's Affiliation | Graduate School of Engineering, Nagasaki University |
| 6th Author's Name | Tamotsu NINOMIYA |
| 6th Author's Affiliation | Graduate School of Engineering, Nagasaki University |
| 7th Author's Name | Masahito SHOYAMA |
| 7th Author's Affiliation | Electrical and Electronic system Engineering, Kyushu University |
| 8th Author's Name | Masato KAGA |
| 8th Author's Affiliation | R&D Headquarters, NTT Facilities Inc |
| Date | 2013-01-24 |
| Paper # | EE2012-32,CPM2012-154 |
| Volume (vol) | vol.112 |
| Number (no) | 396 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |