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IEEE/CAA Journal of Automatica Sinica 2024年第3期11卷 698-707页

作者： Na Wang xiao Liang Hongdan Li xiao Lu the college of Electrical engineering and automation Shandong University of Science and TechnologyQingdao 266000China the School of automation and Electrical engineering Linyi UniversityLinyi 276000China the college of Energy Storage technology Shandong University of Science and TechnologyQingdao 266000China

The paper addresses the decentralized optimal control and stabilization problems for interconnected systems subject to asymmetric *** with previous work,a closed-loop optimal solution to the control problem and sufficient and necessary conditions for the stabilization problem of the interconnected systems are given for the first *** main challenge lies in three aspects:Firstly,the asymmetric information results in coupling between control and estimation and failure of the separation ***,two extra unknown variables are generated by asymmetric information(different information filtration)when solving forward-backward stochastic difference ***,the existence of additive noise makes the study of mean-square boundedness an *** adopted technique is proving and assuming the linear form of controllers and establishing the equivalence between the two systems with and without additive noise.A dual-motor parallel drive system is presented to demonstrate the validity of the proposed algorithm.

关键词： Asymmetric information decentralized control forwardbackward stochastic difference equations interconnected system stalibization

Sliding Mode Control with disturbance Observer for a Class of Nonlinear Systems

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International Journal of automation and computing 2012年第5期9卷 487-491页

作者： Lei-po Liu Zhu-Mu Fu xiao-Na Song college of Electric and Information engineering, Henan University of Science and technology, Luoyang 471003, china 1. college of Electric and Information engineering Henan University of Science and Technology Luoyang 471003 China

This paper is concerned with the stabilization problem for a class of nonlinear systems with disturbance. The disturbance model is unknown and the first derivative of disturbance is bounded. Firstly, a general disturbance observer is proposed to estimate disturbance approximatively. Secondly, since the bound of the disturbance observer error is unknown, an adaptive sliding mode controller is designed to guarantee that the state of system asymptotically converges to zero and the unknown bound can be adjusted by an adaptive law. Finally, an example is given to illustrate the effectiveness of the proposed method.

关键词： Nonlinear systems disturbance observer adaptive sliding mode control derivative of disturbance asymptotic stability

基于Web Services的电站仿真平台(英文)

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系统仿真学报 2008年第19期20卷 5162-5165,5198页

作者：蒋晓肖樊建费敏锐上海市电站自动化技术重点实验室机电工程与自动化学院上海大学上海200072 作战实验中心南京陆军指挥学院江苏南京210045

随着网络技术的发展,第一次提出基于Web Services的电站仿真开放平台WSpS。通过将电站仿真软件SE2000中电站仿真模型中主要功能进行包装并发布,构筑一个基于Web Services的电站仿真开放平台。用户可通过Internet远程调用电站仿真平台验... 详细信息

随着网络技术的发展,第一次提出基于Web Services的电站仿真开放平台WSpS。通过将电站仿真软件SE2000中电站仿真模型中主要功能进行包装并发布,构筑一个基于Web Services的电站仿真开放平台。用户可通过Internet远程调用电站仿真平台验证用户所编写的控制算法,也可通过仿真平台进行仿真实验。本框架的提出通过利用Internet加强了电站仿真资源的共享,减少了重复性投资,有效提高电站仿真软件的开放性。

关键词： Web Services 电站仿真算法验证

HCWCI/Carbon Steel Bimetal liner by Liquid-Liquid Compound Lost Foam Casting

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Journal of Iron and Steel research International 2012年第10期19卷 13-19页

作者： xiao xiao-feng1,2, YE Sheng-ping2, YIN Wei-xin3, XUE Qiong4 (1. School of Mechanical engineering and automation, Wuhan Textile University, Wuhan 430073, Hubei, china 2. State Key Laboratory of Material processing and die and Mould technology, Huazhong University of Science and technology, Wuhan 430074, Hubei, china 3. Wuhan Zhike Abrasive-resistant Material Science and technology Development Co Ltd, Wuhan 430073, Hubei, china 4. college of Science, Wuhan University of technology, Wuhan 430079, Hubei, china) [a] School of Mechanical engineering and automation Wuhan Textile University Wuhan 430073 Hubei China [b] State Key Laboratory of Material processing and die and Mould technology Huazhong University of Science and Technology Wuhan 430074 Hubei China [c] Wuhan Zhike Abrasive-resistant Material Science and technology Development Co Ltd Wuhan 430073 Hubei China [d] college of Science Wuhan University of Technology Wuhan 430079 Hubei China

Impact, friction and corrosion from the grinding balls and the grinding medium during the mineral processing result in liner breakage. liner, made from Hadfield steel or alloyed steel, could not have served in wet grinding environment for more than ten months. Composite liner, made from HCWCI (high Cr white cast iron) and carbon steel, has been developed successfully with liquid-liquid composing process based on LFC (lost foam casting). The microstructure of composite was analyzed with optical microscope, SEM (scanning electron microscope)/EDX energy-dispersive X-ray and XrD (X-ray diffraction). According to micrograph, the combination region of two metals was staggered like dogtooth, no mixtures occurred between two liquid metals, and its interface presented excellent metallurgical bonding state. The results of mechanical property test show that, the hardness of HrC, the fracture toughness, and the bending strength are more than 61, 16.5 J/cm2 and 1 600 Mpa, respectively. Comparison between liners made from bimetal composite and alloyed steel has also been investigated in industrial hematite ball mill. The results of eight months test in wet grinding environment prove that the service life of bimetal composite liner is three times as long as that of one made from alloyed steel.

关键词： composite liner bimetal liquid-liquid compound composite interface lost foam casting high Cr white cast iron

pSO-Fuzzy-pID复合控制器在喉栓调节发动机压强控制中的应用

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推进技术 2024年第7期45卷 269-278页

作者：高潇王庆辉薛智慧刘金国沈阳化工大学信息工程学院辽宁沈阳110412 中国科学院沈阳自动化研究所机器人学国家重点实验室辽宁沈阳110016 中国科学院机器人与智能制造创新研究院辽宁沈阳110169

为了改善喉栓调节发动机的燃烧室内压强控制系统的性能,实现精确闭环控制,建立了系统的数学模型,并在此基础上提出了一种基于粒子群优化(particle Swarm Optimization,pSO)算法的Fuzzy-pID复合控制器(pSO-Fuzzy-pID)。由于模型具有较强... 详细信息

为了改善喉栓调节发动机的燃烧室内压强控制系统的性能,实现精确闭环控制,建立了系统的数学模型,并在此基础上提出了一种基于粒子群优化(particle Swarm Optimization,pSO)算法的Fuzzy-pID复合控制器(pSO-Fuzzy-pID)。由于模型具有较强的时变性、扰动性以及非线性,传统的pID控制器无法精确控制,因此设计并使用pSO-Fuzzy-pID复合控制器。Fuzzy控制器和pID控制器同时工作,采用pSO算法对Fuzzy控制器和pID控制器的输出比例因子进行优化。通过仿真对比了pSOFuzzy-pID复合控制器、Fuzzy-pID双模控制器和传统pID控制器在系统的工作点(6 Mpa)附近的阶跃跟踪、时变性测试以及在非线性模型中的抗干扰性测试、长时间全压强范围调节测试,来验证控制器的动态性能。结果表明:在不同的实验中,pSO-Fuzzy-pID复合控制器均表现出明显的优势。该控制器可以将超调量控制在10%以内;将调节时间控制在1.5 s以内,将压强的调节速度提高至Fuzzy-pID双模控制器的3.45~6.73倍,传统pID控制器的4.51~7.1倍。因此pSO-Fuzzy-pID复合控制器在响应速度、超调量、鲁棒性强等方面更具优势,显著地提高了喉栓调节发动机的燃烧室内压强控制系统的动态性能。

关键词：喉栓调节发动机复合控制器压强控制非线性控制时变性

digital CEOs in digital Enterprises:Automating,Augmenting,and parallel in Metaverse/CpSS/TAOs

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IEEE/CAA Journal of Automatica Sinica 2024年第4期11卷 820-823页

作者： Juanjuan Li rui Qin Sangtian Guan xiao Xue peng Zhu Fei-Yue Wang with State Key Laboratory of Multimodal Artificial Intelligence Systems Institute of AutomationChinese Academy of SciencesBeijing 100190China the college of Intelligence and Computing Tianjin UniversityTianjin 300072China School of Economics and Management Nanjing University of Science and TechnologyNanjing 210094China the State Key Laboratory for Management and Control of Complex Systems Chinese Academy of SciencesBeijing 100190 Faculty of Innovation engineering Macao University of Science and TechnologyMacao 999078China

BIG models or foundation models are rapidly emerging as a key force in advancing intelligent societies[1]–[3]Their significance stems not only from their exceptional ability to process complex data and simulate advan... 详细信息

关键词： exceptional Auto advancing

基于特征集重构与多标签分类模型的谐波源定位方法

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电力自动化设备 2024年第2期44卷 147-154页

作者：邵振国林潇张嫣陈飞雄林洪洲福州大学电气工程与自动化学院福建福州350108 福建省电器智能化工程技术研究中心福建福州350108

传统基于谐波状态估计的谐波源定位方法需要专门的同步相量量测装置,工程应用受到限制。为此,基于电能质量监测装置所采集的非同步量测数据,提出了基于特征集重构与多标签分类模型的谐波源定位方法。利用监测数据的充分统计量来挖掘量... 详细信息

传统基于谐波状态估计的谐波源定位方法需要专门的同步相量量测装置,工程应用受到限制。为此,基于电能质量监测装置所采集的非同步量测数据,提出了基于特征集重构与多标签分类模型的谐波源定位方法。利用监测数据的充分统计量来挖掘量测时段的谐波信息,同时利用标签特定特征学习算法重构特征集,从而消除冗余特征以及无关特征对于谐波源定位精度的影响;提出基于邻接矩阵以及灵敏度分析的测点配置方法,结合电路网络拓扑信息实现测点的优化配置;提出基于改进极限学习机的谐波源定位方法,该方法以重构特征集为输入,建立多标签分类模型,实现谐波源定位。通过仿真与算例分析,验证了所提方法的可行性及有效性。

关键词：电能质量谐波源定位非同步谐波监测数据极限学习机标签特定特征学习算法

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基于体积成形的虚拟试验体系

系统仿真学报 2005年第1期17卷 114-116,128页

作者：应富强潘孝勇浙江工业大学机电工程学院

重点提出了基于金属体积成形的虚拟试验体系的功能特点、集成模型以及各项计算机辅助技术在塑性产品开发中的作用,及基于网络实现集成与数据交换、协同工作的理论与方法。针对现状,提出金属体积成形的虚拟试验体系模型,重点阐述各个部... 详细信息

重点提出了基于金属体积成形的虚拟试验体系的功能特点、集成模型以及各项计算机辅助技术在塑性产品开发中的作用,及基于网络实现集成与数据交换、协同工作的理论与方法。针对现状,提出金属体积成形的虚拟试验体系模型,重点阐述各个部分的实现方法;对其中涉及到的关键技术进行讨论,并通过比较前人的实现方法,进行一定的改进;最后,通过简单的楔横轧虚拟试验进行初步验证其可行性。

关键词：体积成形虚拟试验 CAX技术协同

Intelligent Optimal Design of a Spatial Controllable Multi-DOF Manipulator

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Intelligent Optimal Design of a Spatial Controllable Multi-D...