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Congress on Evolutionary Computation

作者： Wei Du Sunney Yung Sun Leung Chun Kit Kwong Yang Tang Institute of Textiles and Clothing The Hong Kong Polytechnic University Hong Kong Hong Kong Polytechnic University Kowloon HK Department of Industrial and Systems Engineering The Hong Kong Polytechnic University Hong Kong The Key Laboratory of Advanced Control and Optimization for Chemical Processes Ministry of Education East China University of Science and Technology Shanghai China

ISBN: (纸本)9781479974931

Differential evolution (DE) is a simple but powerful evolutionary algorithm, which has been widely and successfully used in many areas. In this paper, an impulsive control method is introduced to the DE framework, and the impulsive DE (IpDE) is proposed for improving the performance of DE. The impulsive control operation instantly moves the individuals which do not update for continuous pre-defined generations to a desired state based on the individuals with better fitness values in the current population. This way, IpDE controls individuals' positions in the space domain according to the stagnation status of the population. In order to validate the effectiveness of IpDE, the presented framework is applied to the original DE algorithms, as well as several state-of-the-art DE variants. Experimental results exhibit that IpDE is a simple but effective framework to improve the performance of the studied DE algorithms.

关键词： Sociology Statistics Optimization Radiation detectors Aerospace electronics Hybrid power systems Evolution (biology)

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Influence of south-to-north water diversion on major cones of depression in North China Plain

Influence of south-to-north water diversion on major cones o...

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中国科学院地质与地球物理研究所2014年度（第14届）学术年会

作者： Yuan Zhang Guo-Min Li Key Laboratory of Engineering Geomechanics Institute of Geology and GeophysicsChinese Academy of Sciences Graduate University Chinese Academy of Sciences National Engineering Research Center of Urban Environmental Pollution Control(The Ministry of Science and Technology of the People's Republic of China) State Environmental Protection Engineering(Beijing) Center for Industrial Wastewater Pollution Control(Ministry of Environmental Protection of the People's Republic of China) Beijing Municipal Research Institute of Environmental Protection

The developments of cones of depression in the North China Plain(NCP) were studied to determine the possible impact of the proposed South-to-North Water Diversion Project(SNWDP) on groundwater *** the past five decades,the exploitation of groundwater in the NCP has been *** hydrological and hydrogeological problems were caused by the gradual decline of the water table in the *** order to protect groundwater resources and alleviate hydrogeological problems,the SNWDP was proposed to progressively solve the shortage of water resources in northern *** this paper,the development of cones of depression was studied to determine the possible impact of the hydrological engineering,the *** the study,a numerical model for regional groundwater flow was created using *** results showed that the SNWDP is beneficial for groundwater recovery in the *** area of cones of depression will be reduced to varying *** immense groundwater cones will gradually ***,it will take a long time to recover groundwater environment in the NCP.

关键词： Groundwater cone North China Plain Numerical simulation South-to-north water diversion

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Spatial Batch Optimal Design Based on Self-Learning Gaussian Process Models for LPCVD Processes

Spatial Batch Optimal Design Based on Self-Learning Gaussian...

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第25届中国过程控制会议

作者： Pei Sun Junghui Chen Lei Xie Xing Cai Shan Lu State Laboratory of Industrial Control Technology Institute of Cyber-Systems and Control Zhejiang University Department of Chemical Engineering Chung-Yuan Christian University

Low pressure chemical vapor deposition(LPCVD)is one of the most important processes during semiconductor ***,experience based control is often used to design this *** few data of thin film thickness on wafers can be available after a long-depositing-time ***,the spatial distribution of temperature makes it hard to control product quality on the multiple *** this work,an optimal design strategy based on the Gaussian process model(GPM)is proposed to control this kind of spatial batch *** the conventional model based design,GPM built up from the data of wafer thicknesses in previous *** it will be employed to predict the thickness of all the wafers on different spatial ***,the predictive uncertainties provided by GPM are also taken into consideration to guide the optimal design of manipulated variables so that the controlling can be more *** effectiveness of the proposed strategy is successfully demonstrated in an LPCVD process.

关键词： LPCVD,Spatial Distribution,Gaussian Process Model,Optimal Design

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Robust Adaptive Backstepping control of Second-order Nonlinear systems with Non-triangular Structure Uncertainties

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IFAC Proceedings Volumes 2014年第3期47卷 10814-10819页

作者： Jianping Cai Changyun Wen Hongye Su Zhitao Liu The State Key Laboratory of Industrial Control Technology Institute of Cyber-Systems and Control Zhejiang University Hangzhou 310027 P.R.China School of Electrical and Electronic Engineering Nanyang Technological University Nanyang Avenue Singapore 639798

In this paper, we consider a class of second-order uncertain nonlinear systems. Besides parametric uncertainties, a non-parametric uncertainty may exist in every state equation or channel with its effects bounded by a known function. Such a bounding function is allowed to depend on all system states which means that the actual system does not need to meet the triangular structure. Therefore the currently available backstepping technique cannot be used to design controllers. To overcome such difficulty, a new backatepping-based robust adaptive control scheme is proposed. It is shown that the proposed scheme can ensure all signals in the closed-loop system bounded.

关键词： Backstepping Adaptive control Nonlinear system Uncertainties Non-triangular structure

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A green wave band based method for urban arterial signal control

A green wave band based method for urban arterial signal con...

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IEEE International Conference on Networking, Sensing and control

作者： Bao-Lin Ye Weimin Wu Xuanhao Zhou Weijie Mao Yi-Sheng Huang The State Key Laboratory of Industrial Control Technology & Institute of Cyber-Systems and Control Zhejiang University Hangzhou China Department of Electrical Engineering National Ilan University Taiwan China

Optimal signal timing is an efficient and effective method to mitigate traffic congestion in urban road traffic networks. In this paper, we propose a new method for signal-timing optimization of urban arterial roads. The main idea to the method is to design a bi-direction green wave band for arterial roads. In order to reduce delay and stops, an arterial road signal coordination approach is developed. In addition, the arterial signal coordination approach has been expanded to deal with the problem of coordination for urban traffic networks coordination control. Finally, simulation experiments are given to illustrate the effectiveness of the proposed method.

关键词： Artificial intelligence Vehicles Silicon

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An efficient mathematical model for a generalized production process

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AIP Conference Proceedings 2015年第1期1648卷

作者： Wei Weng Cheng Chen Gang Rong Shigeru Fujimura aGraduate School of Information Production and Systems Waseda University 2-7 Hibikino Wakamatsu-ku Kitakyushu Fukuoka 808-0135 Japan bState Key Laboratory of Industrial Control Technology Institute of Cyber-systems and Control Zhejiang University Hangzhou China 310027

This study proposes an efficient mixed integer linear programming (MILP) model for a generalized job shop production process. In the process, a workstation contains one or multiple machines and each job visits some of the workstations in a specific sequence. It is allowed that a job visits the same workstation more than once. Although some similar processes were modeled by MILP in previous studies, the models are unable to solve problems that involve more than ten jobs due to high computational complexity. Our proposed model outperforms the best model that is identified among 23 research papers with regard to computational complexity. Simulation results show that our model is able to solve a problem with a dozen of jobs, which is classified as a large-scale problem in the literature.

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Global asymptotic stability for a class of neural networks with time-varying delays

Global asymptotic stability for a class of neural networks w...

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2014中国制导、导航与控制学术会议

作者： Yingxin Guo Chao Xu School of Mathematical Sciences Qufu Normal UniversityQufuShandong 273165P.R.China State Key Laboratory of Industrial Control TechnologyInstitute of Cyber-Systems and ControlZhejiang UniversityHangzhouZhejiang310027P.R.China State Key Laboratory of Industrial Control Technology Institute of Cyber-Systems and ControlZhejiang UniversityHangzhouZhejiang310027P.R.China

ISBN: (纸本)9781479946983

The paper deals with the globally asymptotically stability of dynamical neural networks with time-varying *** sufficient conditions for the globally asymptotically stable of the neural networks are obtained by Lyapunov-Razumikhin ***,we discuss the stability conditions which do not require the activation functions to be differential,bounded,or monotone *** examples are also applied to illustrate the efficiency of the results.

关键词： Neural networks Lyapunov functionals Lyapunov-Razumikhin technique Global asymptotic stability

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Exponential Stabilization of an Unstable Parabolic PDE System Using Boundary Optimal control

Exponential Stabilization of an Unstable Parabolic PDE Syste...

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第三十三届中国控制会议

作者： Huachen Jiang Chao Xu Department of Mathematics Zhejiang University Lab of Information and Optimization Technology Ningbo Institute of Technology State Key Lab of Industrial Control Technology Institute of Cyber-Systems & Control Zhejiang University

ISBN: (纸本)9781479947249

In this paper, we consider an unstable linear parabolic diffusion-reaction PDE system with an actuator at the right boundary via the Dirichlet condition. We begin to derive the first order necessary conditions for the open loop finite-time horizon problem using the classical variational approach. Then, we discuss the the state-feedback problem, and obtain the feedback law by formulating the Riccati partial differential equation(PDE). Finally, with the feedback law, we could prove the stability for the state-feedback problem exponential stability with any given decay rate in the time domain without solving the Riccati PDE.

关键词： Boundary Actuation,Unstable PDE System,Open Loop control,Closed Loop Stability

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ACP based self-learning control for urban intersection

ACP based self-learning control for urban intersection

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2014 IEEE International Conference on Service Operations and Logistics, and Informatics, SOLI 2014

作者： Chen, Feng Zhu, Lingyun Han, Chuyue Gang, Xiong University of Science and Technology of China Hefei230027 China State Key Laboratory of Management and Control for Complex Systems Institute of Automation Chinese Academy of Sciences Beijing100190 China

ISBN: (纸本)9781479960583

The intersection models, such as delay models and queuing length models, are the foundations of optimal signal timing for urban intersection. Lack of the field data of intersection, it is highly difficult to calibrate parameters of the intersection models. Due to the effects of intersection topology, channelization and traffic conditions on these models, obviously it is impossible for single model to be suitable for optimal control of various intersections. © 2014 IEEE.

关键词： Topology

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Reliable H-infinity filtering for linear systems with sensor saturation

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控制理论与应用（英文版） 2013年第1期11卷 80-85页

作者： Ting SHI Hongye SU Jian CHU Institute of Automation Hangzhou Dianzi University State Key Laboratory of Industrial Control Technology Institute of Cyber-Systems and Control Zhejiang University (Yuquan Campus)

In this paper, a new reliable H-infinity filter design problem is proposed for a class of continuous-time sys- tems with sensor saturation and failures. Attention is focused on the analysis and synthesis problems of a full order reliable H-infinity filter such that the filtering error dynamics is asymptotically stable with a guaranteed disturbance rejection atten- uation level -y. It is shown that the filtering error dynamics obtained from the original system plus the filter can be modeled by a linear system with sector bounded nonlinearity. The design conditions are given in terms of solutions to a set of linear matrix inequalities （LMIs）. These conditions are then considered in a convex optimization problem with LMIs constraints in order to design an optimal reliable H-infinity filter. A numerical example is given to illustrate the effectiveness of the proposed results.

关键词： H-infinity filtering Reliable filtering Sensor saturation Sensor failures Linear matrix inequality

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