Super-twisting-based sliding mode control of drum boiler energy conversion systems

A drum boiler is the most critical part of power generation plants. The control of a highly nonlinear, multiple input and multiple output drum boiler system (DBS) is a challenging task. In this work super-twisting sliding mode controllers (STSMCs) are designed for the control-oriented model of the D...

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Bibliographic Details
Published in:International journal of control 2022-07, Vol.95 (7), p.1888-1897
Main Authors: Alsmadi, Yazan M., Rehman, Imtiaz Ur, Uppal A., Ali, Utkin, Vadim, Chairez, Isaac, Ibbini, Mohammed
Format: Article
Language:English
Subjects:
Boilers
Controllers
Drum boiler system
Energy conversion
energy conversion systems
Feedback control
gain-scheduled Utkin observer
Mathematical analysis
Sliding mode control
super twisting sliding mode control
Twisting
Water levels
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Summary:A drum boiler is the most critical part of power generation plants. The control of a highly nonlinear, multiple input and multiple output drum boiler system (DBS) is a challenging task. In this work super-twisting sliding mode controllers (STSMCs) are designed for the control-oriented model of the DBS, which maintain a desired water level and pressure of the drum. The unknown state of the DBS required for the control design is estimated using a gain-scheduled Utkin observer (GSUO). A rigorous mathematical analysis is also included to show that the closed-loop system is locally stable. The simulation results show that the closed-loop system yields the required performance even in the presence of parametric uncertainty, process and measurement noises, and external disturbance. To make a fair comparison, a quantitative analysis is also carried out for STSMC and PI controllers. Both controllers consume similar control energy, but STSMC shows better tracking performance.
ISSN:0020-7179
1366-5820
DOI:10.1080/00207179.2021.1884293