Improved RMPC based on piece-wised uncertain model for UTSG water level control

Author

Fuhe Wang ; Xiangjie Liu

Author_Institution

Sch. of Control & Comput. Eng., North China Electr. Power Univ., Beijing, China

fYear

2013

fDate

25-27 May 2013

Firstpage

1435

Lastpage

1440

Abstract

More and more attention has been drawn to hunt for better control method of the nuclear steam generator (SG) water level because poor control can lead to frequent reactor shut downs and serious accidents even. Moreover, as power level changing, the dynamic of a nuclear steam generator is also varying. In this paper, we develop an improved robust MPC based on piece-wised LPV model with polytopic uncertainty. The optimization problem adopted here is min-max strategy based on the linear matrix inequality (LMI) technique. In order to improve the dynamic of the water level, we introduce the idea of soft constraints. Finally, we show the effectiveness of the proposed control method by simulation.

Keywords

level control; linear matrix inequalities; minimax techniques; nuclear reactor steam generators; predictive control; robust control; uncertain systems; LMI technique; LPV model; RMPC method; U-tube steam generator; UTSG water level control; linear matrix inequality technique; min-max strategy; nuclear steam generator; optimization problem; piece-wised uncertain model; polytopic uncertainty; power level; robust model predictive control method; soft constraints; Generators; Level control; Mathematical model; Safety; Turbines; Uncertainty; Water conservation; Conservatism; Level control; Linear matrix inequality; Piece-wised model; Robust model predictive control; Soft constraints; U-tube steam generator;

fLanguage

English

Publisher

ieee

Conference_Titel

Control and Decision Conference (CCDC), 2013 25th Chinese

Conference_Location

Guiyang

Print_ISBN

978-1-4673-5533-9

Type

conf

DOI

10.1109/CCDC.2013.6561151

Filename

6561151