Optimal design of boiler drum water level control system

Xiao, Baosen; Xie, Antai; Meng, Xiangfu; Zhou, Miao; Shen, Shaohua; Xiao, Zhenfeng; Li, Xiaolu

doi:10.1117/12.2679528

Cited by 1 publication

(1 citation statement)

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“…To improve the stability of the drum water level, the drum water level control plays the most important role, considering that the drum water level faces many external disturbances and system uncertainties [3]. To enhance the control performance of the drum water level for heat recovery boilers, different control strategies have been studied and designed.…”

Section: Introductionmentioning

confidence: 99%

Active Disturbance Rejection Control Design with Sensitivity Constraint for Drum Water Level

Gao,

Cui

2024

Energies

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The drum water level plays a crucial role in the safety and economy of heat recovery boilers. However, the control of the drum water level faces many challenges, such as external disturbances and system uncertainties. To enhance the control performance of the drum water level, a modified active disturbance rejection control (MADRC) optimized with sensitivity constraint is proposed in this paper. Firstly, the control structure of the three-element control system for the drum water level is introduced and analyzed. Based on the regular active disturbance rejection control (ADRC) structure, the structure of the MADRC is introduced and the convergence of the proposed MADRC is proven. Then a modified whale optimization algorithm (MWOA) with sensitivity constraint is applied to optimize the parameters of the MADRC. With different sensitivity constraints, the parameters of the MADRC and comparative controllers are obtained, and their control performance for tracking and disturbance rejection abilities is compared. Moreover, the ability to handle system uncertainties is analyzed. Simulation results and performance indexes show that the proposed MADRC can obtain the best tracking and disturbance rejection abilities with satisfactory robustness. The satisfactory control performance shows that the proposed MADRC has wide application potential for heat recovery boilers and other industrial processes.

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Section: Introductionmentioning

confidence: 99%