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第36届中国控制会议

作者： Ziyun Wang Zhicheng Ji Key Laboratory of Advanced Process Control for Light Industry(Ministry of Education) Jiangnan University

ISBN: (纸本)9781538629185

A fault detection problem of pitch system in wind turbine is considered in this ***,a second-order model is formulated to illustrate the hydraulic pitch of wind turbine and a bilinear transformation method is used to derive the identification model of pitch ***,the fault detection problem is transformed into the parameter estimation issue and a gradient filtering estimation algorithm is ***,the example shows the effectiveness and practicability of the presented fault detecting algorithm.

关键词： Gradient algorithm System identification Fault detection Filtering technique Pitch system modeling

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PWM Digital control of Aeration in Wastewater Treatment process

PWM Digital Control of Aeration in Wastewater Treatment Proc...

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第25届中国控制与决策会议

作者： Wei Ding Linbo Xie Zhihai Wu Key Laboratory of Advanced Process Control for Light Industry （Ministry of Education） Jiangnan University

ISBN: (纸本)9781467355339

A pulse-width-modulation （PWM） digital controller design method in aeration control, which can reduce the energy costs of the control procedure, is proposed for wastewater treatment process based on the ASM1 model. First, an optimal linearization technique is applied to the aeration nonlinear system for finding a local optimal linear model, which has the same dynamics of the original nonlinear system at the operating point of interest. Then, a discrete-time optimal control law in pulse-amplitude-modulated （PAM） form is designed using LQR method. The PWM digital control law is then converted, using the digital redesign technique, from the corresponding PAM control law for the purpose of engineering realization. Last, simulation results demonstrate the effectiveness of the proposed method and the whole energy consumption is also computed. It has been shown that compared with the conventional multi-set point on/off control and on/off control method, the proposed method can save more energy than other approaches.

关键词： Wastewater treatment process PAM PWM Aeration control

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L2- L∞state estimation for discrete-time delayed neural networks with missing measurements and randomly occurring sensor linearity 35

L2- L∞state estimation for discrete-time delayed neural net...

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35th Chinese control Conference, CCC 2016

作者： Zhang, Hao Yan, Huaicheng Shi, Hongbo Key Laboratory of Advanced Control and Optimization for Chemical Process of Ministry of Education Shanghai200237 China Department of Control Science and Engineering Tongji University Shanghai200092 China

ISBN: (纸本)9789881563910

This paper is concerned with the L2- L∞state estimation problem for discrete-time delay neural networks with missing measurements and randomly occurring sensor linearity. The phenomena of missing measurements and randomly occurring sensor linearity are constructed with two sequences of random variables, which obey the partial Bernoulli distribution. A sufficient condition is firstly given such that the augmented filtering error system is stochastically stable with a guaranteed optimal L2- L∞performance by solving a set of linear matrix inequalities(LMIs). Finally, a simulation example is given to show the effectiveness of the proposed method. © 2016 TCCT.

关键词： discrete-time delayed neural networks L2 - L∞ state estimation missing measurements randomly occurring sensor linearity

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The generalized projection algorithm for time-varying systems

The generalized projection algorithm for time-varying system...

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第三十二届中国控制会议

作者： DING Feng Key Laboratory of Advanced Process Control for Light Industry(Ministry of Education) Jiangnan University

ISBN: (纸本)9781479900305

In this paper,the projection identification algorithm is extended and the generalized projection algorithm is presented. The analysis indicates that the generalized projection algorithm can track the time-varying parameters and has the same properties as the forgetting factor least squares algorithms but has less computational *** way of choosing the data window length is stated so as to obtain the minimum upper bound of the parameter estimation errors.

关键词： Parameter estimation projection identification algorithm time-varying system convergence analysis

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Design of Modified Digital PWM controller for Aeration in Wastewater Treatment process 33

Design of Modified Digital PWM Controller for Aeration in Wa...

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第三十三届中国控制会议

作者： DING Wei XIE Linbo Key laboratory of Advanced Process Control of Light Industry (Ministry of Education) Jiangnan University

ISBN: (纸本)9781479947249

The activated sludge process(ASP) is widely used in many wastewater treatment process(WWTP), which consists of a biological reactor and a sedimentation tank, and also is used to take the contaminant(substrate) away by means of activated sludge(microorganisms). The first part of this paper gets the simplified model of the activated sludge model No.1(ASM1), which contains the nitrification and denitrification. Because of the nonlinear nature of ASM1, the optimal linearization technique is applied to it for finding a local optimal linear model, which has the same dynamics of the original nonlinear model at the operation point of interest. Then, a discrete-time optimal control law in pulse-amplitude-modulated(PAM) is designed using linear quadratic regulator(LQR) method. For engineering implementation, a modified pulse-width-modulation(PWM) method is proposed. At last, some simulations are made to demonstrate the effectiveness of the proposed control strategy, which can reduce the whole operational energy and spend less reaction time, comparing to Multi-set point on/off control and PWM control techniques.

关键词： Activated sludge process,Wastewater treatment,Aeration control,Nonlinear model

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Policy Gradient Adaptive Dynamic Programming for Model-Free Multi-Objective Optimal control

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IEEE/CAA Journal of Automatica Sinica 2024年第4期11卷 1060-1062页

作者： Hao Zhang Yan Li Zhuping Wang Yi Ding Huaicheng Yan the Department of Control Science and Engineering Tongji UniversityShanghai 200092China the Key Laboratory of Advanced Control and Optimization for Chemical Processes of Ministry of Education School of Information Science and EngineeringEast China University of Science and TechnologyShanghai 200237China

Dear Editor,In this letter,the multi-objective optimal control problem of nonlinear discrete-time systems is investigated.A data-driven policy gradient algorithm is proposed in which the action-state value function is... 详细信息

关键词： policy gradient Optimal

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An energy efficient clustering and relay node selection algorithm in wireless sensor networks 35

An energy efficient clustering and relay node selection algo...

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第35届中国控制会议

作者： HU Yuan JIA Tinggang NIU Yugang Key Laboratory of Advanced Control and Optimization for Chemical Process of Ministry of Education (East China University of Science and Technology) Automation Division of Shanghai Electric Group Co. Ltd.

ISBN: (纸本)9781509009107

Wireless sensor networks utilize large numbers of sensors to perform sensing and forwarding tasks in the monitoring *** to the resources constraints of sensors and the energy efficiency QoS requirement,prolonging the network lifetime is a major concern in *** is an efficient approach to reduce energy consumption since it can reduce data transmission of the *** most traditional clustering protocols,the cluster heads（CHs） aggregate the coming data from their cluster members（CMs） and send the aggregated data to the remote sink node directly or visa other ***,assigning a node to serve as CHs and relay nodes simultaneously may result in unbalanced energy *** energy efficient overlapping clustering and relay node selection algorithm is proposed,which selects different nodes as CHs and relay node to attain the balancing of energy consumption of the network.A direction fitness metric is designed to select the proper boundary nodes in the overlapping area to serve as relay *** results show that the proposed algorithm significantly prolongs the network lifetime.

关键词： Wireless sensor networks energy efficiency clustering relay nodes multi-hop

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Secure Impulsive Synchronization in Lipschitz-Type Multi-Agent Systems Subject to Deception Attacks

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IEEE/CAA Journal of Automatica Sinica 2020年第5期7卷 1326-1334页

作者： Wangli He Zekun Mo Qing-Long Han Feng Qian IEEE Key Laboratory of Advanced Control and Optimization for Chemical Processes Ministry of EducationEast China University of Science and TechnologyShanghai 200237China School of Software and Electrical Engineering Swinburne University of TechnologyMelbourne VIC 3122Australia

Cyber attacks pose severe threats on synchronization of multi-agent *** attack,as a typical type of cyber attack,can bypass the surveillance of the attack detection mechanism silently,resulting in a heavy ***,the problem of mean-square bounded synchronization in multi-agent systems subject to deception attacks is investigated in this *** control signals can be replaced with false data from controllerto-actuator channels or the *** success of the attack is measured through a stochastic variable.A distributed impulsive controller using a pinning strategy is redesigned,which ensures that mean-square bounded synchronization is achieved in the presence of deception *** sufficient conditions are derived,in which upper bounds of the synchronization error are ***,two numerical simulations with symmetric and asymmetric network topologies are given to illustrate the theoretical results.

关键词： Deception attacks impulsive control multi-agent systems(MASs) synchronization

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In situ reconstruction of Au promoted CuOOH/NiOOH for efficient and selective ethylene glycol electrooxidation

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chemical Engineering Journal 2025年 515卷

作者： Jiang, Wenhan Zhu, Chen Xu, Hao Guan Liu, Ji Kai Wu, Yi Xiao Cao, Shiyu Yuan, Hai Yang Liu, Peng Fei Zhou, Yi State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process National Engineering Research Center of Industrial Wastewater Detoxication and Resource Recovery East China University of Science and Technology 130 Meilong Road Shanghai200237 China Key Laboratory for Ultrafine Materials of Ministry of Education Shanghai Engineering Research Center of Hierarchical Nanomaterials School of Materials Science and Engineering East China University of Science and Technology Shanghai200237 China Shanghai Engineering Research Center for Multi-media Environmental Catalysis and Resource Utilization East China University of Science and Technology 130 Meilong Road Shanghai200237 China Shanghai Institute of Pollution Control and Ecological Security Shanghai200092 China

The replacement of water oxidation with thermodynamically favorable nucleophile oxidation reactions, such as the ethylene glycol oxidation reaction (EGOR), offers a promising approach to enhancing hydrogen production at reduced potentials. However, the competitive adsorption of hydroxyl and ethylene glycol molecules, along with side reactions like oxygen evolution, significantly impair the efficiency and selectivity of EGOR. In this work, a hierarchical composite catalyst consisting of Au/CuO on Ni foam, which can be in situ reconstructed into Au/CuOOH/NiOOH is presented. This modified catalyst provided synergistic multi-reactive sites for efficient EG electrooxidation. The resulting Au/CuOOH/NiOOH demonstrated a current density of 175 mA cm−2 at 1.5 V vs. reversible hydrogen electrode (RHE), achieving Faradaic efficiency of 96 % for EGOR and remarkable stability for over 200 h. A range of spectroscopic characterizations, electrochemical investigations, and theoretical calculations revealed that the in situ generated NiOOH served as the site for the adsorption and activation of OH−, CuOOH synergistically activated the EG reactant, while Au promoted catalytic performance by providing additional reactive sites for *OH and EG adsorption. Notably, glyoxal was identified as the special product of EGOR, resulting from the further oxidation of formic acid, which consumed the adsorbed *OH and inhibited additional oxidation of glyoxal. This work clarifies the specific EGOR mechanism on the composite catalyst and offers valuable insights into the design of multi-site synergistic catalytic electrodes. © 2025 Elsevier B.V.

关键词： Thermooxidation

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Automatic determination of optimal spectral peaks for classification of Chinese tea varieties using laser-induced breakdown spectroscopy

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International Journal of Agricultural and Biological Engineering 2018年第3期11卷 154-158页

作者： Hongyang Zhang Qibing Zhu Min Huang Ya Guo Key Laboratory of Advanced Process Control for Light Industry(Ministry of Education) Jiangnan UniversityWuxi 214122JiangsuChina

The accurate identification of tea varieties is of great significance to ensure the interests of tea producers and *** a non-destructive or micro damage detection method,laser-induced breakdown spectroscopy(LIBS)has been widely used in the quality detection or classification of agricultural products and *** objective of this research was to automatically select optimal spectral peaks from the full LIBS spectra,and develop effective classification model for identifying tea *** LIBS spectra covering the region 200-500 nm were measured for 600 Chinese tea leaves including six varieties(*** green tea,Jinhao black tea,Tie Guanyin,Huang Jinya,White peony tea,and Anhua dark tea).A total of 50 optimal spectral peaks were automatically selected from full LIBS spectra(6102)by using the uninformative variable elimination(UVE)and partial least squares projection analysis,and the selected spectral peaks mainly represent the elemental difference in C,Fe,Mg,Mn,Al and *** Least Squares Discriminant Analysis(PLS-DA)was used for developing classification model using selected optimal spectral peaks,and yielded the 99.77%classification accuracy for 300 test samples was *** results indicate that the proposed method can be used to identify leaf varieties in various tea products.

关键词： LIBS tea varieties classification feature selection PLS projection algorithm UVE PLSDA

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