Effects of cyclic operation on advanced energy conversion systems

Starr, Frederic

doi:10.1179/mht.2003.005

Cited by 7 publications

(1 citation statement)

References 3 publications

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“…Damage mechanisms that play a role are, amongst others, creep, fatigue, erosion and corrosion. The reader is referred to [9][10][11][12][13][14][15][16] for more information on the link between power plant cycling and component damage accumulation.…”

Section: A Start-up Cost Curvementioning

confidence: 99%

Long-term cycling costs in short-term unit commitment models

Bergh

Legon

Delarue

et al. 2016

2016 13th International Conference on the European Energy Market (EEM)

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Cycling of conventional power plants is becoming increasingly important in an electricity system with a large penetration of intermittent renewables. Power plant cycling entails short-term costs, e.g., additional fuel costs during start-up, and long-term costs, e.g., additional maintenance costs. Power plant operators should take long-term cycling costs into account when making short-term scheduling decisions, in order to reduce total generation costs. This paper presents a new approach to consider long-term start-up costs in a short-term unit commitment model. The approach is based on an iterative procedure, in which consecutively a unit commitment model is solved and the correct total start-up cost is recalculated. This new approach, referred to as the Cost Redistribution Unit Commitment (CRUC), is applied to a real-life case study based on the 2014 German electricity system. The performance of the CRUC model, in terms of generation costs and computational tractability, is compared with existing start-up cost formulations in the literature. The simulation results show that, for the considered case study, the CRUC model outperforms the existing formulations in terms of generation costs, but requires a longer run time.Index Terms-Power plant cycling, start-up costs, long-term cycling cost, unit commitment.

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