Instruct: Identify the main and secondary category of Arxiv papers based on the titles
Query: Cooperative Control of TCSC to Relieve the Stress of Cyber-physical
  Power System
3
The categories of this paper are: physics
16
The categories of this paper are: stat
18
The categories of this paper are: econ
5
The categories of this paper are: gr-qc
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
37
The categories of this paper are: supr-con
27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph
24
The categories of this paper are: dg-ga
19
The categories of this paper are: eess
2
The categories of this paper are: math
34
The categories of this paper are: chem-ph