Intelligent tuning of the 2-DOF PID controller on the DCS for steam temperature control of thermal power plant

被引:0
|
作者
Kim, DH [1 ]
Hong, WP [1 ]
Hwang, JH [1 ]
Lee, SH [1 ]
机构
[1] Hanbat Natl Univ, Dept Elec Elect Instrumentat & Control Eng, Yusong Gu, Seoul 305719, South Korea
来源
2002 IEEE INDUSTRIAL AND COMMERCIAL POWER SYSTEMS TECHNICAL CONFERENCE, CONFERENCE RECORD | 2002年
关键词
D O I
暂无
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
In the thermal power plant, there are six manipulated variables; main steam flow, feedwater flow, air flow, spray flow, and gas recirculation flow. Also, there are five controlled variables such as generator output, main steam pressure, main steam temperature, exhaust gas O density, and reheater steam temperature. Therefore, the thermal power plant control system is a multi-input and output system. In the control system, the main steam temperature typically is regulated by the fuel flow rate and the spray flow rate, and the reheater steam temperature is regulated by the gas recirculation flow rate. However, it is difficult to maintain strict control of the steam temperature in order to avoid thermal stress, because of variation of the heating value according to the fuel source, the time delay of changes in main steam temperature versus changes in fuel flow rate, difficulty of control on the main steam temperature control and the reheater steam temperature control system owing to the dynamic response characteristics of changes in steam temperature and the reheater steam temperature, fluctuation of inner fluid water and steam flow rates widely during load-following operation. Up to the present time, the PID controller has been used to operate this system. However, it is very difficult to achieve an optimal PID gain without any experience, since the gain of the PID controller has to be manually tuned by trial and error procedures. This paper focuses on the characteristic comparison of the PID controller, the modified 2-DOF PID Controller on the DCS, in order to design an optimal controller which can be operated on the thermal generating plant in Seoul, Korea. The modified 2-DOF PID Controller is designed with a 2-degrees parameter, to enable them to fit into the thermal plant during disturbances vs. many kinds noises and load-following operation. In order to attain an optimal control method, transfer function and operating data from start-up, running, and stop procedures of the thermal plant have been acquired. Through this research, the stable range of a 2-DOF parameter for only this system could be found for the start-up procedure and this parameter could be used for the tuning problem. Also, this paper tried whether intelligent tuning method based on the immune network algorithms can be used effectively in a tuning for these controllers.
引用
收藏
页码:1 / 13
页数:13
相关论文
共 50 条
  • [41] Robust tuning of Two-Degree-of-Freedom (2-DoF) PI/PID based cascade control systems
    Alfaro, V. M.
    Vilanova, R.
    Arrieta, O.
    JOURNAL OF PROCESS CONTROL, 2009, 19 (10) : 1658 - 1670
  • [42] STEAM TEMPERATURE PREDICTION CONTROL FOR THERMAL POWER-PLANT
    SATO, Y
    NOMURA, M
    MATSUMOTO, H
    IIOKA, M
    IEEE TRANSACTIONS ON POWER APPARATUS AND SYSTEMS, 1984, 103 (09): : 2382 - 2387
  • [43] DS based 2-DOF PID controller for various integrating processes with time delay
    So, GunBaek
    ISA TRANSACTIONS, 2024, 153 : 276 - 294
  • [44] Main Steam Temperature PID Controller of Power Plant Based on Genetic Algorithm and Neural Networks
    Zhao Jing
    Fu Jun-fang
    Chen Hong-wen
    Zhang Liang
    Li Meng-jie
    2011 INTERNATIONAL CONFERENCE ON FUTURE COMPUTER SCIENCE AND APPLICATION (FCSA 2011), VOL 3, 2011, : 463 - 466
  • [45] Application of Fuzzy Immune Algorithm and Soft Computing in the Design of 2-DOF PID Controller
    Ding, Ning
    Prabhakar, Priti
    Khosla, Anita
    Jagota, Vishal
    Ramirez-Asis, Edwin
    Singh, Bhupesh Kumar
    DISCRETE DYNAMICS IN NATURE AND SOCIETY, 2022, 2022
  • [46] Applying PID control to 2-dof vortex induced vibration of a cylinder
    Song, Jixiang
    Du, Jinjin
    Gao, Xifeng
    OCEAN ENGINEERING, 2024, 300
  • [47] Intelligent control algorithm for steam temperature regulation of Thermal Power Plants
    Sanchez-Lopez, A
    Arroyo-Figueroa, G
    Villavicencio-Ramirez, A
    MICAI 2004: ADVANCES IN ARTIFICIAL INTELLIGENCE, 2004, 2972 : 754 - 763
  • [48] Design of on-line auto-tuning PID controller for power plant process control
    Yoon, MH
    Shin, CH
    SICE '97 - PROCEEDINGS OF THE 36TH SICE ANNUAL CONFERENCE, INTERNATIONAL SESSION PAPERS, 1997, : 1221 - 1224
  • [49] PID controller tuning and implementation aspects for building thermal control
    Department of Electronic and Computer Engineering, Technical University of Crete, Kounoupidiana Campus, 73100 Chania, Crete, Greece
    不详
    WSEAS Trans. Circuits Syst., 2006, 7 (1016-1020):
  • [50] Design of Power Intelligent Control DCS Module Based on Improved PID
    Song, Chao
    ADVANCED HYBRID INFORMATION PROCESSING, ADHIP 2019, PT I, 2019, 301 : 498 - 506