Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Trajectory tracking with an aggregation of domestic hot water heaters:
  Combining model-based and model-free control in a commercial deployment   Scalable demand response of residential electric loads has been a timely
research topic in recent years. The commercial coming of age or residential
demand response requires a scalable control architecture that is both efficient
and practical to use. This work presents such a strategy for domestic hot water
heaters and present a commercial proof-of-concept deployment. The strategy
combines state of the art in aggregate-and-dispatch with a novel dispatch
strategy leveraging recent developments in reinforcement learning and is tested
in a hardware-in-the-loop simulation environment. The results are promising and
present how model-based and model-free control strategies can be merged to
obtain a mature and commercially viable control strategy for residential demand
response.

6
The categories of this paper are: astro-ph
36
The categories of this paper are: cmp-lg
29
The categories of this paper are: funct-an
14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
0
The categories of this paper are: hep-ph
19
The categories of this paper are: eess
12
The categories of this paper are: nucl-th
15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int
24
The categories of this paper are: dg-ga
17
The categories of this paper are: q-fin
33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
3
The categories of this paper are: physics
22
The categories of this paper are: chao-dyn