01775nas a2200145 4500008004100000020002200041245010700063210006900170260001200239520123400251100002301485700003601508700002201544856006301566 2017 eng d a978-0-9981331-0-200aCoordinating Heterogeneous Distributed Energy Resources for Provision of Frequency Regulation Services0 aCoordinating Heterogeneous Distributed Energy Resources for Prov c01/20173 a

We discuss a framework for coordinating the response of distributed energy resources (DERs) connected to electric power distribution networks to provide frequency regulation services. These resources include plug-in electric vehicles, thermostatically controlled loads, and microturbines. In this framework, we consider an aggregator that participates in the real-time market by submitting an offer to provide frequency regulation services. If the offer is accepted, the aggregator needs to coordinate the response of a set of DERs. The DERs are compensated through bilateral contracts, the terms of which are negotiated in advance. The DER coordination problem the aggregator is faced with is cast as an optimal control problem, and we propose a bilayer framework to obtain a sub-optimal solution. In the first layer, we utilize model-predictive control techniques driven by regulation signal forecasts and parameter estimates to obtain a reference control signal for the DERs. A second control layer provides closed-loop regulation around the reference computed by the top layer, which minimizes the error that arises due to forecast error, plant-model mismatch, and the slower speed of the optimal control.

1 aHughes, Justin, T.1 aDominguez-Garcia, Alejandro, D.1 aPoolla, Kameshwar uhttp://aisel.aisnet.org/hicss-50/es/renewable_resources/3/