Guaranteed cost control of the water level of steam generator based on T-S model

Abstract

In the operation of nuclear steam generator, the reverse thermal-dynamic effects make steam generator water level process dynamics characteristic difficult to control. In order to improve the control effect, a guaranteed cost controller method based on T-S model for the water level control of a nuclear steam generator is proposed and investigated in this paper. The proposed controller guarantees both stability and a prescribed performance in the entire operating region in terms of linear matrix inequalities. The computer simulation shows that guaranteed cost controller can efficiently control the steam generator water level and achieve anticipative effects. It also demonstrates the effectiveness of the proposed controller in full operating range.