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Browsing by Author "Keane, Andrew"
Now showing items 1-20 of 34
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Cuffe, Paul ; Smith, Paul ; Keane, Andrew (Energynautics, 2010-10)At times of high generation levels from distributed generators (DGs), there may be a paucity of conventional generators still synchronised to the transmission system. These synchronous machines have traditionally been the ...
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Dent, Chris ; Bialek, Janusz W. ; Hasche, Bernard ; Keane, Andrew (CIGRE, 2010)The concept of capacity credit is widely used to quantify the contribution of renewable technologies to securing demand. This may be quantified in a number of ways; this paper recommends the use of Effective Load ...
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Keane, Andrew ; Milligan, Michael R. ; Dent, Chris ; Hasche, Bernhard ; D'Annunzio, Claudine ; Dragoon, Ken ; Holttinen, Hannele ; Samaan, Nader ; Söder, Lennart ; O'Malley, Mark (IEEE, 2011-05)Power systems are planned such that they have adequate generation capacity to meet the load, according to a defined reliability target. The increase in the penetration of wind generation in recent years has led to a ...
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Hasche, Bernhard ; Keane, Andrew ; O'Malley, Mark (IEEE, 2011-02)The capacity value of wind power indicates the extent to which wind power contributes to the generation system adequacy of a power system. The related data requirements may be subject to difficulties due to the temporal ...
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O'Malley, Mark ; Milligan, Michael R. ; Holttinen, Hannele ; Dent, Chris ; Keane, Andrew (2010-10)The capacity value of a generator is the contribution that a given generator makes to generation system adequacy. Due to the variable and stochastic nature of wind, the modeling of wind generation in the same manner as ...
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Kavanagh, David ; Keane, Andrew ; Flynn, Damian (2011-09-05)In order to gauge the potential impact of wave power in Ireland, the capacity factor of theoretical wave farms deployed at various locations around the Irish coast is compared to the system-wide capacity factor of wind ...
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Ensslin, Cornel ; Milligan, Michael R. ; Holttinen, Hannele ; O'Malley, Mark ; Keane, Andrew (IEEE, 2008-07)Power systems must have enough generation to meet demand at each moment of the day. In addition, they must also have enough reserve to deal with unexpected contingencies. The increase in the penetration of wind generation ...
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Keane, Andrew ; Tuohy, Aidan ; Meibom, Peter ; Denny, Eleanor ; Flynn, Damian ; Mullane, Alan ; O'Malley, Mark (Elsevier, 2011-05)The utilisation of demand side resources is set to increase over the coming years with the advent of advanced metering infrastructure, home area networks and the promotion of increased energy efficiency. Demand side resources ...
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Cuffe, Paul ; Smith, Paul ; Keane, Andrew (CIRED, 2011-06)It is common to operate distributed generators (DGs) at fixed inductive power factors to overcome voltage rise constraints on distribution networks. This approach increases distribution system reactive power demand, which ...
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Effect of generator flow control strategies on the long term dynamics of a model for power systems Fitzmaurice, Ronan ; Keane, Andrew ; O'Malley, Mark (IEEE, 2010-01)Cascading component failure can cause system-wide blackouts in power systems. Complex system analysis of the long term dynamics suggests that power transmission systems operate near a critical point. Here the effect of ...
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Fitzmaurice, Ronan ; Keane, Andrew ; O'Malley, Mark (IEEE, 2011-02)In the analysis of time series of blackouts a power law dependency of blackout size with respect to frequency has been observed. It has been hypothesized that this behaviour is the result of the power system operating ...
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Keane, Andrew ; Ochoa, Luis ; Vittal, Eknath ; Dent, Chris ; Harrison, Gareth (IEEE, 2011-02)Distributed Generation (DG) is increasing in penetration on power systems across the world. In rural areas, voltage rise limits the permissible penetration levels of DG. Another increasingly important issue is the impact ...
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Impact assessment of varying penetrations of electric vehicles on low voltage distribution systems Richardson, Peter ; Flynn, Damian ; Keane, Andrew (IEEE, 2010-07)Advances in the development of electric vehicles, along with policy incentives will see a wider uptake of this technology in the transport sector in future years. However, the widespread implementation of electric vehicles ...
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Keane, Andrew ; O'Malley, Mark (IEEE, 2006-06)The introduction of distributed generation (DG) onto distribution networks has a significant effect on losses. This effect cannot be characterised as detrimental or beneficial but is dependent on the allocation of DG on ...
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Richardson, Peter ; Keane, Andrew (IEEE, 2009-06)Due to rising fossil fuel and electricity prices and the overall need to reduce carbon emissions, there is a growing interest in the utilisation of micro-generation amongst electricity consumers and governments alike. ...
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Vittal, Eknath ; O'Malley, Mark ; Keane, Andrew (IEEE, 2009-07)This study examines the 2013 Irish electricity network and its ability to accommodate large levels of wind generation while maintaining appropriate voltage levels across the system. The network provides a fully functional ...
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Ochoa, Luis ; Keane, Andrew ; Dent, Chris ; Harrison, Gareth (IEEE, 2011-11)Wind power generation is the fastest growing renewable technology worldwide with large on- and off-shore wind farms being connected to the transmission networks. A significant share of it, however is still being deployed ...
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Ochoa, Luis ; Keane, Andrew ; Dent, Chris ; Harrison, Gareth (Energynautics, 2009-10)Wind power generation is the fastest growing renewable technology worldwide with large on- and off-shore wind farms being connected to the transmission networks. A significant share of it is, however, still being deployed ...
Now showing items 1-20 of 34
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