INTELEC 2008 - 2008 IEEE 30th International Telecommunications Energy Conference最新文献_第4页

High voltage DC power distribution for telecommunications facilities 电信设备用高压直流配电

INTELEC 2008 - 2008 IEEE 30th International Telecommunications Energy Conference Pub Date : 2008-10-31 DOI: 10.1109/INTLEC.2008.4664075

C. Foster, M. Dickinson

引用次数: 17

Telecommunications installations for truly extended run backup power 电信装置，真正延长运行备用电源

INTELEC 2008 - 2008 IEEE 30th International Telecommunications Energy Conference Pub Date : 2008-10-31 DOI: 10.1109/INTLEC.2008.4664092

H. Koyama

引用次数: 1

Feasibility of increase in smoothing-capacitor of battery system for dumping power oscillation in transition to isolated operation of distributed generator 增加蓄电池系统平滑电容以消除分布式发电机向隔离运行过渡时功率振荡的可行性

INTELEC 2008 - 2008 IEEE 30th International Telecommunications Energy Conference Pub Date : 2008-10-31 DOI: 10.1109/INTLEC.2008.4664040

T. Kato, M. Hisada, Y. Suzuoki, H. Yamawaki

{"title":"Feasibility of increase in smoothing-capacitor of battery system for dumping power oscillation in transition to isolated operation of distributed generator","authors":"T. Kato, M. Hisada, Y. Suzuoki, H. Yamawaki","doi":"10.1109/INTLEC.2008.4664040","DOIUrl":"https://doi.org/10.1109/INTLEC.2008.4664040","url":null,"abstract":"This study examines the feasibility of increasing a smoothing capacitor of battery system regarding a high power supply in a short period during the transition to isolated operation of distributed generation (DG). By forming a small-scale facility micro-grid (FMG), DG and battery system can be utilized to protect a part of load against a disturbance of utility grid. For damping the power oscillation in FMG, a battery system would be required to supply a high power in a short period. For this purpose, this study simply focuses on the enlargement of capacity of smoothing capacitor, which is necessary for the voltage-type inverter, instead of increasing the DC power output limit of battery itself including DC-DC converter. This study demonstrates the effect of enlarged smoothing capacitor of battery system on suppressing the oscillation of rotational speed of DG when a 100 kW class FMG is disconnected from the utility grid by using a high-speed circuit breaker. The results show that the battery system with the feasibly enlarged capacity of smoothing capacitor can be useful for a high power supply during the transition to isolated operation of FMG.","PeriodicalId":431368,"journal":{"name":"INTELEC 2008 - 2008 IEEE 30th International Telecommunications Energy Conference","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114657809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Next generation fuel cell solutions for telecommunications backup power 电信备用电源的下一代燃料电池解决方案

INTELEC 2008 - 2008 IEEE 30th International Telecommunications Energy Conference Pub Date : 2008-10-31 DOI: 10.1109/INTLEC.2008.4664028

A. K. Trehan, D.B. Canavan

引用次数: 1

Embedded software “capsule works” for switching power supply 开关电源的嵌入式软件“胶囊工程”

INTELEC 2008 - 2008 IEEE 30th International Telecommunications Energy Conference Pub Date : 2008-10-31 DOI: 10.1109/INTLEC.2008.4664121

Y. Nakamura, Y. Nishikori, H. Matsuo

{"title":"Embedded software “capsule works” for switching power supply","authors":"Y. Nakamura, Y. Nishikori, H. Matsuo","doi":"10.1109/INTLEC.2008.4664121","DOIUrl":"https://doi.org/10.1109/INTLEC.2008.4664121","url":null,"abstract":"The many geologists have been giving us words of warning that recently the first extraordinary phenomenon of abrupt increase in CO2 has been occurring in the earth history for the latest several hundred millions. This extraordinary phenomenon is one of the most serious problems to be solved by any scientific methods. In the telecommunication fields, the electric energy is processed adequately by the switching power supply, that is employed to get the energy saving. Therefore, the digitally controlled switching power supply is required to achieve the intellectual energy saving systematically. Especially, it is more effective in the distributed power supply because the opportunity of the energy control is enlarged by the embedded software. It is important to realize the compatibility between the high reliability and functional complexity in case of using the embedded software in microcontrollers and digital signal processors(DSPs) That is, even when the function increases, the reliability has to be kept high. However, when the embedded software performs the real-time control of the telecommunication system, the bug of the software causes the serious system trouble. Therefore, it is strongly required that the software bug is removed perfectly. This requirement is achieved by the proposed embedded software, that is, \"capsule works\" The proposed capsule works has the following features; 1) common structure, 2) input, process and output, 3)unity function, 4)small code, 5)periodic repeat operation, 6) freedom of the reaction speed, 7) setting of the process order.","PeriodicalId":431368,"journal":{"name":"INTELEC 2008 - 2008 IEEE 30th International Telecommunications Energy Conference","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121629175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A tool for calculating reliability of power supply for information and communication technology systems 一种计算信息和通信技术系统供电可靠性的工具

INTELEC 2008 - 2008 IEEE 30th International Telecommunications Energy Conference Pub Date : 2008-10-31 DOI: 10.1109/INTLEC.2008.4664080

T. Tsumura, Takashi Takeda, Keiichi Hirose

引用次数: 10

Business continuity management of NTT FACILITIES, INC. NTT FACILITIES, INC.业务连续性管理

INTELEC 2008 - 2008 IEEE 30th International Telecommunications Energy Conference Pub Date : 2008-10-31 DOI: 10.1109/INTLEC.2008.4664067

S. Iwai, H. Iwamoto, Tsutomu Aizu, Y. Kawagoe

引用次数: 7

A new digital control DC-DC converter with peak current -injected control 一种具有峰值注入电流控制的新型数字控制DC-DC变换器

INTELEC 2008 - 2008 IEEE 30th International Telecommunications Energy Conference Pub Date : 2008-10-31 DOI: 10.1109/INTLEC.2008.4664113

F. Kurokawa, S. Sukita, Y. Shibata, T. Yokoyama, M. Sasaki, Y. Mimura

引用次数: 3

400-Ah lithium-ion cells for telecommunications systems and DC power supply systems 用于电信系统和直流电源系统的400-Ah锂离子电池

INTELEC 2008 - 2008 IEEE 30th International Telecommunications Energy Conference Pub Date : 2008-10-31 DOI: 10.1109/INTLEC.2008.4664119

T. Matsushima, N. Suzuki

引用次数: 0

Energy saving active cooling systems for outdoor cabinet 室外机柜节能主动冷却系统

INTELEC 2008 - 2008 IEEE 30th International Telecommunications Energy Conference Pub Date : 2008-10-31 DOI: 10.1109/INTLEC.2008.4664063

Hong Yu-ping, Ji Shengqin, Zhang Yunhui, Kong Xiaoming, Chen Qiao, F. Cucchietti, G. Griffa

{"title":"Energy saving active cooling systems for outdoor cabinet","authors":"Hong Yu-ping, Ji Shengqin, Zhang Yunhui, Kong Xiaoming, Chen Qiao, F. Cucchietti, G. Griffa","doi":"10.1109/INTLEC.2008.4664063","DOIUrl":"https://doi.org/10.1109/INTLEC.2008.4664063","url":null,"abstract":"Currently the energy-saving strategy is one of the top priorities of Telecom Operators and Governments. In particular, the area of cooling has heavy impact on the total electrical energy consumption, and needs to be optimized to improve overall performances, reducing both CAPEX/OPEX and the environmental impact. In this paper, two innovative cooling solutions for outdoor cabinets are described: free cooling system and manhole cooling system. Free cooling system is a solution directly using external fresh air in order to increase the cooling efficiency of active outdoor cabinet. Three key technologies are developed and used in this system: experimental results indicate that excellent heat dissipation capacity and good corrosion resistance of outdoor cabinet are achieved simultaneously. Manhole cooling system is another innovative solution, in which manhole (part of the underground maintenance infrastructure of TLC operator) is innovatively used as a huge heat sink. The cooling performance of manhole cooling system is predicted through CFD simulations. It has been demonstrated that as much as 60% of the heat load can be dissipated into the ground, still maintaining the equipment well within its operating temperature range. The proposed cooling solutions are particularly interesting for the FTTCab architecture. FTTCab deployment, as foreseen in several NGN strategies, will strongly increase in the next years.","PeriodicalId":431368,"journal":{"name":"INTELEC 2008 - 2008 IEEE 30th International Telecommunications Energy Conference","volume":"122 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132296773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2