文献类型：期刊文献

英文题名：Self-Healing Control for Wastewater Treatment Process Based on Variable-Gain State Observer

作者：Du, Peihao[1];Zhong, Weimin[1];Peng, Xin[1,2];Li, Linlin[3,4];Li, Zhi[1,2]

机构：[1]East China Univ Sci & Technol, Key Lab Smart Mfg Energy Chem Proc, Minist Educ, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Engn Res Ctr Proc Syst Engn, Minist Educ, Shanghai 200237, Peoples R China;[3]Univ Sci & Technol Beijing, Shunde Grad Sch, Foshan 528399, Peoples R China;[4]Univ Sci & Technol Beijing, Sch Automat & Elect Engn, Beijing 100083, Peoples R China

年份：2023

卷号：19

期号：10

起止页码：10412

外文期刊名：IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS

收录：;EI(收录号：20230813623659);WOS:【SCI-EXPANDED(收录号:WOS:001047436000042)】；

基金：This work was supported in part by the National Natural Science Foundation of China (Major Program: 61890930-3), in part by the National Natural Science Fund for Distinguished Young Scholars under Grant 61925305, in part by the National Natural Science Foundation of China under Grant 62173145 and Grant 62073029, and in part by the Fundamental Research Funds for the Central Universities and Shanghai Al Lab. Paper no. TII-22-3511. (Corresponding authors: Weimin Zhong; Xin Peng.)

语种：英文

外文关键词：Adaptive control; failure compensation; self-healing control; variable-gain state observer (VSO); wastewater treatment process (WWTP)

摘要：This article proposes a variable-gain state observer-based sliding mode self-healing control (VSO-based SMSHC) method for a wastewater treatment process (WWTP) with changeable external disturbances and sensor failures. To reconstruct the disturbances and unmeasured system states, a novel VSO is developed, in which the VSO gains are adjusted by following an automatic variable-gain mechanism for adapting to the variation of external disturbances. An adaptive compensation coefficient of failure factor is designed to counteract the failure effects on observation and tracking performance. By utilizing the cubic absolute-value Lyapunov stability criterion, it is shown that system stability and tracking performance of WWTP are guaranteed. Experimental studies are carried out on a standardized platform of WWTP, and the results on dissolved oxygen and nitrate nitrogen regulation indicate that the proposed control strategy can ensure excellent control performance and reduce both failure and disturbance impacts.