Searched for: subject%3A%22Ancillary%255C%252Bservices%22
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Evans, Michael (author), Tindemans, Simon H. (author), Angeli, David (author)
This paper proposes a framework for the procurement of flexibility reserve from aggregated storage fleets. It allows for arbitrary tree structures of aggregation hierarchy, as well as easily implementable disaggregation via broadcast dispatch. By coupling discharge and recovery modes, the proposed framework enables full-cycle capacity to be...
journal article 2022
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Evans, Michael (author), Tindemans, Simon H. (author), Angeli, David (author)
We consider the problem of dispatching a fleet of heterogeneous energy storage units to provide grid support. Under the restriction that recharging is not possible during the time frame of interest, we develop an aggregate measure of fleet flexibility with an intuitive graphical interpretation. This analytical expression summarises the full set...
journal article 2020
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Evans, Michael (author), Angeli, David (author), Strbac, Goran (author), Tindemans, Simon H. (author)
We present a method to find the maximum magnitude of any supply-shortfall service that an aggregator of energy storage devices is able to sell to a grid operator. This is first demonstrated in deterministic settings, then applied to scenarios in which device availabilities are stochastic. In this case we implement chance constraints on the...
conference paper 2019