Title
Role And Benefits Of Flexible Thermostatically Controlled Loads In Future Low-Carbon Systems
Abstract
Thermostatically controlled loads (TCLs) represent a valuable source of flexibility for the system. Depending on network needs, these devices could alter their nominal energy consumption and provide multiple ancillary services, facilitating the cost-effective transition to a low-carbon power system. Previous work mainly focused on investigating single service provision from TCLs, while intersections among different services have not been considered. Furthermore, the intrinsic energy payback effect was not fully included within optimisation tools for TCL scheduling. This paper presents a novel demand side response model (DSRM), which enables the optimal scheduling of energy/power consumption of a heterogeneous population of TCLs and the simultaneous allocation of multiple ancillary services. The model explicitly considers the effect of the energy recovery after delivering the services so that the deliverability of scheduled services from TCLs is always guaranteed. The proposed DSRM is integrated into an advanced stochastic unit commitment model to investigate the system benefits of the flexibility from TCLs. Case studies demonstrate that: 1) time-varying provision of multiple services from TCLs significantly increases their benefits; 2) TCL operation which aims to minimise the amplitude of the energy recovery causes sub-optimal utilisation of the devices; and 3) ignoring the energy payback leads to overestimate the TCL value.
Year
DOI
Venue
2018
10.1109/TSG.2017.2679133
IEEE TRANSACTIONS ON SMART GRID
Keywords
Field
DocType
Load management, thermal energy storage, stochastic systems, power system economics, frequency response
Load management,Population,Thermal energy storage,Scheduling (computing),Power system simulation,Electric power system,Control engineering,Energy recovery,Engineering,Energy consumption
Journal
Volume
Issue
ISSN
9
5
1949-3053
Citations 
PageRank 
References 
0
0.34
0
Authors
3
Name
Order
Citations
PageRank
Vincenzo Trovato1191.97
Fei Teng2106.45
Goran Strbac37519.95