Parameter Optimization of Steam Generator Water Level Control System Based on Piecewise ARX Modeling

被引：0

作者：

Liu, Fang ^{[1
]}

Jiang, Yongqiang ^{[2
]}

Li, Yuwei ^{[1
]}

Peng, Hui ^{[1
,3
]}

Wang, Ji ^{[1
]}

Peng, Tianbo ^{[1
]}

机构：

[1] Cent South Univ, Sch Automat, Changsha 410083, Hunan, Peoples R China

[2] Guangxi Fangchenggang Nucl Power Co Ltd, Fangchenggang 538001, Guangxi, Peoples R China

[3] Xiangjiang Lab, Changsha 410205, Peoples R China

来源：

IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 2024年 / 71卷 / 02期

关键词：

Feedwater flow control; parameter optimization; piecewise linear autoregressive with exogenous inputs (ARX) modeling; proportional-integral-derivative (PID) controller; steam generator (SG); water level control;

D O I：

10.1109/TNS.2024.3358561

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this article, an offline sequential parameter optimization method for cascade proportional-integral-derivative (PID) controllers for the steam generator (SG) water level control system in pressurized water reactor (PWR)-type nuclear power plants is proposed to improve the control performance when the unit output power (UOP, electrical power) changes greatly. We establish the simulators in sequence for the SG feedwater flow and water level processes using a set of piecewise linear autoregressive with exogenous inputs (ARX) models obtained under dynamic mode constraints to optimize the controller parameters constrained by system stability, and conduct simulations in the power ranges of 1000-1010, 575-700, 240-260 and 210-220 MW. The results show that the simulators have good long-term prediction performance, and the PID controllers with optimized parameters have good control performance for the SG feedwater flow and water level control.

引用

页码：135 / 153

页数：19

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