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has been cited by the following article:

• TITLE: Design of Medium-Pressure Industrial Natural Circulation Boiler Control System Based on PCS7

  AUTHORS: Xin Ai

  KEYWORDS: Control System, PID Algorithm, The SMPT-1000 Experimental Device, PCS7

  JOURNAL NAME: Open Access Library Journal, Vol.9 No.3, March 17, 2022

  ABSTRACT: Medium pressure natural circulation boiler is a common heat exchange pressure device in industry. The object has complex characteristics such as MIMO, strong coupling and uncertainty. It is difficult to achieve ideal control effect by using traditional controller to deal with the change of working conditions. In this study, SIMATIC PCS7 is used as the controller, CFC and SFC are used to complete different control loop configurations, so as to realize the control of superheated steam flow, superheated steam temperature, flue gas oxygen content, drum water level and furnace negative pressure, so as to make the system run smoothly. The system test shows that the designed control system can maintain a good and stable operation state under normal conditions. At the same time, it can also ensure the stable operation under certain load change requirements, and has a certain anti-interference ability.