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Telecommunications Energy Conference, 2006. INTELEC '06. 28th Annual International

Date 10-14 Sept. 2006

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  • Copyright page

    Publication Year: 2006 , Page(s): nil1
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  • [Front cover]

    Publication Year: 2006 , Page(s): C1
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  • Copyright page

    Publication Year: 2006 , Page(s): ii
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  • [Commentary]

    Publication Year: 2006 , Page(s): iii
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  • INTELEC?? 2006 Management Committee

    Publication Year: 2006 , Page(s): iv
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  • INTELEC?? 2006 Advisory Committee

    Publication Year: 2006 , Page(s): v
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  • INTELEC?? 2006 Conference Executive Committee

    Publication Year: 2006 , Page(s): vi
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  • INTELEC?? 2006 Program Committee

    Publication Year: 2006 , Page(s): Vii
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  • Future Conferences

    Publication Year: 2006 , Page(s): Vii
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  • Table of contents

    Publication Year: 2006 , Page(s): viii - xix
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  • INTELEC 2006 author index

    Publication Year: 2006 , Page(s): xx - xxi
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  • A Hybrid Type DC-DC Converter with New Control Strategy for a Micro-Fuel Cell Power Supply System

    Publication Year: 2006 , Page(s): 1 - 6
    Cited by:  Papers (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (5787 KB) |  | HTML iconHTML  

    A micro-fuel cell power supply system realizes an electronic ubiquitous society. Especially, the micro-fuel cell power supply is promoted to apply mobile systems such as small personal computer, cellular phone and so forth. In this case, it is attracted strongly to employ both of the micro-fuel cell and battery as the hybrid power supply system. This paper proposes a hybrid type DC-DC converter wi... View full abstract»

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  • The Wave of the Future in High Density PC Converters

    Publication Year: 2006 , Page(s): 1 - 4
    Request Permissions | Click to expandAbstract | PDF file iconPDF (3560 KB) |  | HTML iconHTML  

    Recent advances in packaging and silicon design allow the design engineer to implement DC-DC converter designs breaking the current records in power density (Watt/in2) and current density (Amp/in2). We will discuss in details a recent design that boasts 400 Watt/in2 on standard 6-8 layer boards. This approach allows the design engineer to fully optimize both the el... View full abstract»

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  • Design, Control and Simulation of a High-Efficiency Low-Cost DC-DC Converter for High Current Applications

    Publication Year: 2006 , Page(s): 1 - 8
    Cited by:  Papers (2)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (6273 KB) |  | HTML iconHTML  

    In this paper, a two-stage DC-DC converter for high current applications is studied. The converter consists of two three-phase full-bridge inverters connected through three AC inductors. First, a switching-functions based model of the converter is establishes, and then a control scheme is designed for both inverters in order to ensure a high power factor at the AC stage, and a regulated voltage at... View full abstract»

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  • Decreasing Owning Costs of MV/LV Substations Backup Batteries

    Publication Year: 2006 , Page(s): 1 - 6
    Cited by:  Papers (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (5682 KB) |  | HTML iconHTML  

    From the utilities point of view, backup batteries are very important to secure substations of the electrical network. The economical criterion for those batteries are mainly the upfront capital costs and the operational costs including maintenance. Facing the battery's owning costs in the 2300 substations under operation in France, Electricite de France Research and Development has developed an i... View full abstract»

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  • Considerations For High Reliability Energy Sources For Nigeria Telecommunication Limited

    Publication Year: 2006 , Page(s): 1 - 5
    Cited by:  Papers (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (4485 KB) |  | HTML iconHTML  

    Nigerian Telecommunication Ltd NITEL is the first national carrier in Nigeria, and is one of the two companies licensed to carry out the telecommunication carrier business in the country. Power generation within the company's networks has remained for decades a determining factor in the evaluation of the reliability of the services provided. Hence, discussed in this paper are the migration process... View full abstract»

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  • Consideration for Abnormal Phenomenon in Common-Source type Active-clamped Forward Converter with Self-driven Synchronous Rectifier

    Publication Year: 2006 , Page(s): 1 - 5
    Cited by:  Papers (2)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (4137 KB) |  | HTML iconHTML  

    Many switching converters use soft-switching techniques with an active-clamp snubber so as to reduce switching surge and common-mode noise. In particular, the common-source type active-clamped forward converter is known as an effective circuit topology for common-mode noise reduction. On the other hand, replacing the output rectifying diodes with synchronous rectifier circuits, the power efficienc... View full abstract»

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  • An Improved Current-Driven Method for Synchronous Flyback AC/DC Converters

    Publication Year: 2006 , Page(s): 1 - 5
    Cited by:  Papers (7)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (4407 KB) |  | HTML iconHTML  

    For low output voltage and relatively high current applications, synchronous rectifier technique can help improve efficiency in a flyback converter. An improved current-driven method for the synchronous rectifier (SR) is presented. Compared to the previous proposed current driven synchronous rectifier (CDSR), the proposed CDSR features simple structure, low driving loss, low component voltage stre... View full abstract»

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  • Analysis and Design of Half-Bridge DC-DC Converters with Current Tripler Rectification

    Publication Year: 2006 , Page(s): 1 - 7
    Request Permissions | Click to expandAbstract | PDF file iconPDF (5246 KB) |  | HTML iconHTML  

    A half bridge DC-DC converter with a novel current tripler rectifier (HBCTR) is proposed for low-voltage high-current applications. The proposed topology features high efficiency, good thermal management and simple magnetics design. A unified steady-state model is derived for the symmetrical and asymmetrical controlled HBCTR, and the DC analysis shows that the proposed HBCTR topology has high curr... View full abstract»

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  • Sodium Nickel Chloride Battery Performance in a Stationary Application

    Publication Year: 2006 , Page(s): 1 - 4
    Cited by:  Papers (2)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (3191 KB) |  | HTML iconHTML  

    This study focuses on the backup power requirements of telecommunications operations that are representative of many stationary power storage applications across the utility spectrum. The study evaluated the performance of a Zebra NaNiCl2 battery at Southern California Edison's (SCE) Electric Vehicle Technical Center (EVTC). EVTC's experience with backup power systems, battery expertise... View full abstract»

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  • Nickel-Metal Hydride Technology- A Solution for Niche Telecom Power Applications

    Publication Year: 2006 , Page(s): 1 - 8
    Request Permissions | Click to expandAbstract | PDF file iconPDF (8202 KB) |  | HTML iconHTML  

    Nickel-metal hydride (Ni-MH) technology is often overlooked by telecom users who are considering advanced battery technologies. The paper details the characteristics of Saft's large-format Ni-MH technology and provides comparisons with nickel-cadmium, valve-regulated lead-acid and lithium-based batteries. It will be seen that Ni-MH offers a viable solution for certain niche applications in telecom... View full abstract»

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  • NiMH vs NiCd Batteries under High Charging Rates

    Publication Year: 2006 , Page(s): 1 - 6
    Cited by:  Papers (2)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (6202 KB) |  | HTML iconHTML  

    In last years, NiCd and NiMH technologies have settled in the market of medium/high capacity batteries. Fast-charge is very interesting in different applications (communications systems, electric vehicles, low-earth-orbit spacecrafts) in order to minimizing charge time. The problem is that high currents involved in fast-charge process affect battery behavior modifying parameters as battery charge ... View full abstract»

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  • Ground Fault Detection by Differential Monitoring of the Float Current

    Publication Year: 2006 , Page(s): 1 - 5
    Request Permissions | Click to expandAbstract | PDF file iconPDF (4261 KB) |  | HTML iconHTML  

    The safety requirements for battery ground fault detection were recognised by UPS industry from its infancy. Detection of leak to ground as low as 4 mA is a standard feature in UPS battery installations. In Telco applications one of the battery busses is usually grounded, therefore ground fault detection appears to be redundant. Placement of the battery in closed cabinet initially removed the requ... View full abstract»

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  • DC Power Plant Monitor Configuration and Acceptance Testing

    Publication Year: 2006 , Page(s): 1 - 6
    Request Permissions | Click to expandAbstract | PDF file iconPDF (7023 KB) |  | HTML iconHTML  

    The issue to be discussed in this paper is how to configure the monitoring system in a DC power plant to deliver what is most beneficial to the user. As monitoring systems get more complex and offer more functionality, there is often confusion within the user community about what is necessary and useful. All too often these sophisticated systems are not used to a fraction of their capabilities. Th... View full abstract»

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  • A New Advanced Management Solution for Telecom Infrastructure Equipments and Buildings

    Publication Year: 2006 , Page(s): 1 - 8
    Request Permissions | Click to expandAbstract | PDF file iconPDF (8091 KB) |  | HTML iconHTML  

    This paper describes the advanced solution developed by Emerson for the remote management of buildings and telecommunication equipments as a consequence of existing operator needs caused by the heavy increase in the deployment of their networks View full abstract»

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