Study of Power Plant Main Steam Temperature System Based on Smith-LADRC Controller

DOI

10.2991/icmmita-15.2015.167How to use a DOI?

Keywords

Main steam temperature; Smith ADRC-P cascade control system; robust performance; disturbance rejection

Abstract

Against such characteristics as large delay, nonlinear, time-varying and uncertainty of controlled object, the Smith-LADRC cascade control system is proposed in this paper. The principle of the LADRC is briefly introduced firstly, and then the LADRC-P control system with Smith predictor is designed and the closed loop system is studied in MATLAB simulation. In addition, control effect of the new structure and Smith-P cascade control structure is compared, and the robust performance is analyzed as well. Results show that when using different control strategies for the same load, performance under Smith-LADRC control is better than that under Smith-P control. The new control structure shows excellent control performance, outstanding adaptability and robustness against model uncertainties and external disturbances.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Jia Luo
AU  - Weijian Huang
AU  - Xi Zhang
AU  - Le Wu
AU  - Kai Su
AU  - Yingnan Wang
AU  - Siying Wang
PY  - 2015/11
DA  - 2015/11
TI  - Study of Power Plant Main Steam Temperature System Based on Smith-LADRC Controller
BT  - Proceedings of the 2015 3rd International Conference on Machinery, Materials and Information Technology Applications
PB  - Atlantis Press
SP  - 905
EP  - 910
SN  - 2352-538X
UR  - https://doi.org/10.2991/icmmita-15.2015.167
DO  - 10.2991/icmmita-15.2015.167
ID  - Luo2015/11
ER  -