adaptive control;
system identification;
NCS;
CGT;
CONTROL-SYSTEMS;
DELAY;
D O I:
10.3390/app12126084
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
The model of a networked temperature control system is easily affected by its surrounding environment. Because of that, it is hard to identify an accurate model. This paper proposes an adaptive model output following control based on system identification for a networked thermostat system. First, the time-varying system model is built via some thermal laws, whose parameters are identified based on the least-squares method (LSM). The time delay is transferred to deterministic by setting the data buffer. The system stability is ensured by a feedback controller. Meanwhile, an adaptive model output following controller with a command generator tracker (CGT) is designed to adjust the forward control input based on system identification. Finally, the effectiveness of the proposed method is illustrated by simulation and experimental results.
机构:
Brazilian Navy, Admiral Wandenkolk Instruct Ctr, BR-20180003 Rio De Janeiro, Brazil
Univ Fed Rio de Janeiro, Inst Math NCE, BR-21945970 Rio De Janeiro, BrazilUniv Brescia, Dept Informat Engn, I-25123 Brescia, Italy
机构:
Univ Fed Rio de Janeiro, Inst Math NCE, BR-21945970 Rio De Janeiro, Brazil
Natl Inst Metrol Qual & Technol, BR-25250020 Xerem, BrazilUniv Brescia, Dept Informat Engn, I-25123 Brescia, Italy
机构:
Brazilian Navy, Admiral Wandenkolk Instruct Ctr, BR-20180003 Rio De Janeiro, Brazil
Univ Fed Rio de Janeiro, Inst Math NCE, BR-21945970 Rio De Janeiro, BrazilUniv Brescia, Dept Informat Engn, I-25123 Brescia, Italy
机构:
Univ Fed Rio de Janeiro, Inst Math NCE, BR-21945970 Rio De Janeiro, Brazil
Natl Inst Metrol Qual & Technol, BR-25250020 Xerem, BrazilUniv Brescia, Dept Informat Engn, I-25123 Brescia, Italy