Conference paper
A New Method for Handling Lockout Constraints on Controlled TCL Aggregations
Department of Electrical Engineering, Technical University of Denmark1
Center for Electric Power and Energy, Centers, Technical University of Denmark2
Energy System Management, Center for Electric Power and Energy, Centers, Technical University of Denmark3
Lawrence Berkeley National Laboratory4
Thermal loads are recognized as a valuable source of flexibility in face of the increasing variability caused by the large shares of renewable production. Lockout constraints can significantly reduce the flexibility of thermostatically controlled loads (TCLs). We propose a novel way of modifying the loads’ lockout durations to achieve non-intrusive centralized control without relying on local computations and estimations.
We derive analytical expressions for the flexibility reduction and validate them via simulations, which show that the proposed method describes the TCLs flexibility accurately. We further show that a simple stochastic centralized controller, which does not rely on local temperature measurements, outperforms the commonly used priority-stack controller in terms of system robustness against infeasible trajectories.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2018 |
| Pages: | 1-7 |
| Proceedings: | 20th Power Systems Computation Conference |
| ISBN: | 1538615835 , 1910963097 , 1910963100 , 9781538615836 , 9781910963098 and 9781910963104 |
| Types: | Conference paper |
| DOI: | 10.23919/PSCC.2018.8442907 |
| ORCIDs: | Ziras, Charalampos , You, Shi and Bindner, Henrik W. |
Aggregation Lockout constraints SDG 7 - Affordable and Clean Energy Stochastic controller Thermal battery model Thermostatically controlled loads
Aggregates Analytical models Batteries Computational modeling Load modeling Switches TCL flexibility Thermostats commonly used priority-stack controller controlled TCL aggregations estimations flexibility reduction frequency control load regulation local temperature measurements lockout constraints nonintrusive centralized control power system simulation renewable production simple stochastic centralized controller stochastic controller stochastic processes stochastic systems temperature measurement thermal battery model thermal loads thermostatically controlled loads thermostats valuable source
