Browsing by Subject "Electric power systems--Mathematical models"

DSpace/Manakin Repository

You are here:
Research Repository UCD
>
Browsing by Subject

Browsing by Subject "Electric power systems--Mathematical models"

Now showing items 1-8 of 8

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 ...
Effect of short-term risk-aversive dispatch on a complex system model for power systems

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 ...
Evaluating which forms of flexibility most effectively reduce base load cycling at large wind penetrations

Troy, Niamh ; Denny, Eleanor ; O'Malley, Mark (Energynautics, 2009-10)

Increasing penetration of wind power on power systems worldwide is resulting in the unconventional operation of base-load generating units. These units which were originally designed for operation at full output are ...
Impact of pumped storage on power systems with increasing wind penetration

Tuohy, Aidan ; O'Malley, Mark (IEEE, 2009-07)

In this paper, the unit commitment and dispatch of a power system with and without a pumped storage unit is examined for increasing levels of installed wind power, from 17% of total energy to 80% of total energy generated ...
Multi-mode operation of Combined Cycle Gas Turbines with increasing wind penetration

Troy, Niamh ; O'Malley, Mark (IEEE, 2010-07)

As power systems evolve to incorporate greater penetrations of variable renewables, the demand for flexibility within the system is increased. Combined Cycle Gas Turbines (CCGTs) are traditionally considered as inflexible ...
Multi-mode operation of combined-cycle gas turbines with increasing wind penetration

Troy, Niamh ; Flynn, Damian ; O'Malley, Mark (IEEE, 2010-08)

As power systems evolve to incorporate greater penetrations of variable renewables, the demand for flexibility within the system is increased. Combined-cycle gas turbines are traditionally considered as relatively ...
Simplified methods for renewable generation capacity credit calculation: A critical review

Dent, Chris ; Keane, Andrew ; Bialek, Janusz W. (IEEE, 2010-07)

Capacity credits are widely used to quantify the ability of different generating technologies to support demand. Most practical capacity credit calculations are based on detailed risk modelling, however a wide range of ...
Wind as a price-maker and ancillary services provider in competitive electricity markets

Troy, Niamh ; Twohig, Sonya (IEEE, 2010-07)

Electricity markets are currently evolving to accommodate large scale penetration of wind generation. In this research, potential changes to the classiﬁcation and role of wind generators in the Single Electricity Market ...