Power Engineer
Volume 18, Issue 3, June 2004
Volumes & issues:
Volume 18, Issue 3
June 2004
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- Source: Power Engineer, Volume 18, Issue 3, page: 1 –1
- DOI: 10.1049/pe:20040309
- Type: Article
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- Source: Power Engineer, Volume 18, Issue 3, p. 4 –5
- DOI: 10.1049/pe:20040310
- Type: Article
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- Author(s): N. Anscombe
- Source: Power Engineer, Volume 18, Issue 3, page: 6 –6
- DOI: 10.1049/pe:20040311
- Type: Article
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Floating wind farms promise to reach the depths that offshore farms can't. But can we afford them asks the author? - Author(s): P. Dempsey
- Source: Power Engineer, Volume 18, Issue 3, p. 8 –9
- DOI: 10.1049/pe:20040312
- Type: Article
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Hydrogen economy: what the US national academy of engineering said about George Bush's plans. - Source: Power Engineer, Volume 18, Issue 3, p. 10 –13
- DOI: 10.1049/pe:20040313
- Type: Article
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Interview. - Author(s): D. Flin
- Source: Power Engineer, Volume 18, Issue 3, p. 14 –17
- DOI: 10.1049/pe:20040301
- Type: Article
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Late last year, Finland announced Europe's first nuclear build for more than a decade. A contract signed in December 2003 by Finnish electricity generator, Teollisuuden Voima Oy (TVO), now sees French energy group Areva and engineering conglomerate Siemens working together to supply a European pressurized water reactor (EPR) for the new nuclear build, Olkiluoto 3. Does the country's move towards nuclear power make sense? - Author(s): W. Coles
- Source: Power Engineer, Volume 18, Issue 3, p. 18 –19
- DOI: 10.1049/pe:20040302
- Type: Article
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In todays plants, work-related deaths can lead to manslaughter charges. Developing the right health and safety strategy will help you prevent the unthinkable. To avoid accidents, all plant's must be properly designed, installed, protected, operated and maintained. On top of this, the plant must be suitable for all normal and foreseeable abnormal conditions and carry the expected loads without disturbance. And of course, the plant must also quickly disconnect faulty equipment. - Author(s): D. Warne
- Source: Power Engineer, Volume 18, Issue 3, p. 20 –23
- DOI: 10.1049/pe:20040303
- Type: Article
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In August 2000, the electricity supply research (ESR) network was formed to provide a platform for research communication between suppliers, manufacturers and academia. A key objective of the ESR network is to formulate research and development strategy papers in key areas of interest to both industrialists and academics. A framework for identifying research and development priorities was developed into a matrix that would match academic expertise with industrial plant and system needs. - Author(s): J. Wood
- Source: Power Engineer, Volume 18, Issue 3, p. 24 –26
- DOI: 10.1049/pe:20040304
- Type: Article
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British companies are at the forefront of the development of wave and tidal energy technologies, but a lack of practical support could allow the UK's dominant position to slip away. To accelerate the drive towards commercialism, wave energy developers would, without a doubt, benefit from some form of revenue support mechanism to accelerate the move to commercialisation. Indeed, ideas such as double renewable obligation certificates (ROCs) and even feed-in tariffs have already been touted. Whatever the incentive, these would certainly remove the risk of the wave energy industry falling foul of the commercial disappointments that have plagued wind generation. - Source: Power Engineer, Volume 18, Issue 3, page: 27 –27
- DOI: 10.1049/pe:20040314
- Type: Article
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- Author(s): A. Ponsonby and B. Hardy
- Source: Power Engineer, Volume 18, Issue 3, p. 28 –31
- DOI: 10.1049/pe:20040305
- Type: Article
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In October 2002, London underground (LU) switched off its last working turbine at Lots road generating station after 97 years of service. Although the city's tube operator had always used in-house generation to power its fleet of trains, by the 1980s, the ageing generating plant had forced the business to review its policy of islanded generation. The decision to source power from the national grid came in 1998 as part of the bid by Seeboard Powerlink (SPL), the Seeboard, Balfour Beatty and ABB, consortium, for a 30 year contract to operate and maintain the city's underground power supply system. To ensure that the LU power supplies could be safely taken from the national grid, SPL had a lot of ground to cover before Lots road could be switched off. And from the beginning the partners knew that connecting the underground's aggressive power load to the public supply network would be a real challenge. - Author(s): D. Weale and C. Whitley
- Source: Power Engineer, Volume 18, Issue 3, p. 32 –36
- DOI: 10.1049/pe:20040306
- Type: Article
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In a bid to reduce heavy and space consuming hydraulic and pneumatic systems in todays aeroplanes, the industry is edging closer and closer towards the so-called electric aircraft. This technology shift not only promises to cut passenger costs in commercial sectors but also heralds the development of lighter and more manoeuvrable military aircraft. But as the industry begins to realise its more-electric aircraft (MEA) dream, power engineers are having to tackle a number of major power management challenges. - Author(s): J. Frenkil
- Source: Power Engineer, Volume 18, Issue 3, p. 37 –39
- DOI: 10.1049/pe:20040307
- Type: Article
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Designing for low power can drive you crazy. What is commonly referred to as low-power design actually comprises two different, but related activities. Power minimisation seeks to reduce average and instantaneous power consumption. This process will consider different modes of operation, such as standby or sleep mode, as well as dynamic and leakage power losses. Power integrity management on the other hand takes a look at the delivery of power to various parts of the chip. This process aims to minimise any negative power effects on design timing and functionality. To optimise power effects, a system should be properly architectured from word go and successively refined as the design proceeds. Design software can be used at all stages of chip design to detect and address critical issues. Indeed, the latest EDA tools can support high level register-transfer-level (RTL), optimise power, timing, and noise characteristics at the physical level, and also verify cell-based electrical characteristics for verification and sign-off. - Author(s): G. Tchouangue
- Source: Power Engineer, Volume 18, Issue 3, p. 40 –43
- DOI: 10.1049/pe:20040308
- Type: Article
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In recent years, high voltage drives and controls including inverters for traction control and high power drives for industrial motion control have adopted emerging technologies to meet cost, reliability and efficiency needs. Take, for example, the gate turn-off thyristor (GTO). This device has led to the use of cheap, robust asynchronous AC motors in variable speed control applications. Later developments brought us the gate commutated thyristor (GCT). This simplifies the gate drive and snubber circuit requirements of GTOs. Meanwhile, power insulated gate bipolar transistors (IGBT) are also taking great strides forward and are now being used with 1000 to 1500 V DC links. And now that injection enhanced insulated gate bipolar transistors (IEGTs) have demonstrated satisfactory performance at DC blocking voltages as high as 6.5 kV, designers can exploit the switching advantages of transistor technology in traction and industrial inverters while also optimising the DC link voltage for maximum power conversion efficiency. - Source: Power Engineer, Volume 18, Issue 3, p. 44 –45
- DOI: 10.1049/pe:20040315
- Type: Article
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- Source: Power Engineer, Volume 18, Issue 3, p. 46 –47
- DOI: 10.1049/pe:20040316
- Type: Article
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- Source: Power Engineer, Volume 18, Issue 3, page: 48 –48
- DOI: 10.1049/pe:20040317
- Type: Article
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Editor's letter
News
Turbines take float
Unrealistic plans
Power in motion
Emerging from the shadows [Finland nuclear power]
Manslaughter: Don't let it happen to you
Match making [electricity supply research]
Racing the waves [wave and tidal energy technology]
Destination unknown
Going underground [London Underground power supply system]
Power takes flight
Power mad [low-power design]
Monster motion [power semiconductors]
PCIM 2004: five-of-the-best
Letters to the Editor
Hitting the spot
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