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Implementing A Quantitative-Based Methodology for Project Risk Assessment DSS

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Implementing A Quantitative-Based Methodology for Project Ri...

基于全局向局部运行空间投影的多级调度协同模式

第二十七届中国控制会议

作者： Guo Jianyi,zhang Li,Liu xusheng,Huang Yuejuan,Yu Zhengtao department of Information engineering and automation,Kunming university of Science and Technology,Yunnan 650051,P.R.china

Project risk assessment is a critical activity adopted in project risk management process to prevent risks and to enhance the success rate of *** so far it is a big challenge for project managers and experts to combine their expertise with intelligent technology to evaluate project risks due to insufficient risk related *** on this,a novel attempt to integrate analytic hierarchy process（AHP） and support vector regression（SVR） is proposed to build the assessment decision model.A prototype system called Project Risk Assessment Decision Support System（PRADSS） which consists of risk index system,AHP evaluation model,intelligent evaluation system,knowledge base and man-machine interaction is brought forward to reduce negative risk factors and assist in decision *** project risk assessment is conducted to show the efficiency and feasibility of the prototype system.

关键词： Project risk assessment Quantitative prediction Support vector regression Decision support system

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电力系统自动化 2024年第11期48卷 143-152页

作者：张怀宇夏清张丙金谭振飞董成孙宇军赖晓文国家电网有限公司华东分部上海市200120 清华大学电机工程与应用电子技术系北京市100084 北京清能互联科技有限公司北京市100084 电力传输与功率变换控制教育部重点实验室(上海交通大学) 上海市200240

随着电力市场改革的推进,华东区域各省级市场均已进入试运行阶段,为统筹兼顾现货市场平稳运营与区域电网安全运行,迫切需要研究更高效的网省协同运行机制。首先,分析了现货市场环境下网省调度协同模式的挑战与改进思路。然后,构建了区... 详细信息

随着电力市场改革的推进,华东区域各省级市场均已进入试运行阶段,为统筹兼顾现货市场平稳运营与区域电网安全运行,迫切需要研究更高效的网省协同运行机制。首先,分析了现货市场环境下网省调度协同模式的挑战与改进思路。然后,构建了区域电网调度可行域与省市调度可行域模型,提出可行域模型的降维与线性化处理方法。在此基础上,提出了基于调度可行域的网省协同优化运行机制,重点对网省两级协同运行的业务流程、省市可行域的计算方法进行了探讨。最后,通过区域电网的算例分析,验证了调度可行域模型与两级市场协同运行机制的有效性。

关键词：电力市场可行域机组组合安全校核市场出清网省协同调度

A Hierarchical Framework for Visualising and Simulating Supply Chains in Virtual Environments

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International Journal of automation and computing 2005年第2期2卷 144-154页

作者： Hai-Yan zhang Institute of engineering Mechanics, china Earthquake Administration, 29 xuefu Road, harbin 150018, PRC School of Computing, university of Derby, Kedleston Road, Derby DE22 1GB, UK Zheng-xu Zhao department of Instrumentation Science and engineering, Southeast university, Nanjing 210096, PRC School of Mechanical & Manufacturing engineering, Shandong university, Jinan 250061, PRC School of Computing, university of Derby, Kedleston Road, Derby DE22 1GB, UK Institute of engineering Mechanics China Earthquake Administration Harbin PRC School of Computing University of Derby Derby UK department of Instrumentation Science and engineering Southeast University Nanjing PRC School of Mechanical & Manufacturing engineering Shandong University Jinan PRC

This paper presents research into applying virtual environment (VE) technology to supply chain management (SCM). Our research work has employed virtual manufacturing environments to represent supply chain nodes to simulate processes and activities in supply chain management. This will enable those who are involved in these processes and activities to gain an intuitive understanding of them, so as to design robust supply chains and make correct decisions at the right time. A framework system and its hierarchical structure for visualising and simulating supply chains in virtual environments are reported and detailed in this paper.

关键词： Virtual environments supply chains 3D visualising simulating web based systems

State estimation with quantized innovations in wireless sensor networks: Gaussian mixture estimator and posterior Cramér–Rao lower bound

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Chinese Journal of Aeronautics 2015年第6期28卷 1735-1746页

作者： zhang zhi Li Jianxun Liu Liu Liu Zhaolei Han Shan department of automation Shanghai Jiao Tong University Key Laboratory of System Control and Information Processing Ministry of Education of China Nanjing Research Institute of Electronics Technology engineering Research Center of Wideband Wireless Communication Technology Ministry of EducationNanjing University of Posts and Telecommunications

Since the features of low energy consumption and limited power supply are very impor- tant for wireless sensor networks （WSNs）, the problems of distributed state estimation with quan- tized innovations are investigated in this paper. In the first place, the assumptions of prior and posterior probability density function （PDF） with quantized innovations in the previous papers are analyzed. After that, an innovative Gaussian mixture estimator is proposed. On this basis, this paper presents a Gaussian mixture state estimation algorithm based on quantized innovations for WSNs. In order to evaluate and compare the performance of this kind of state estimation algo- rithms for WSNs, the posterior Cram6r-Rao lower bound （CRLB） with quantized innovations is put forward. Performance analysis and simulations show that the proposed Gaussian mixture state estimation algorithm is efficient than the others under the same number of quantization levels and the performance of these algorithms can be benchmarked by the theoretical lower bound.

关键词： Posterior Cramer-Rao lower bounds Quantiation State estimation Target tracking Wireless sensor network

基于联合参数辨识的粒子群优化扩展粒子滤波的锂电池荷电状态估计

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电工技术学报 2024年第2期39卷 595-606页

作者：贠祥张鑫王超范兴明桂林电子科技大学电气工程及其自动化系桂林541004

提高参数辨识的精度和SOC算法的精度是提高SOC估计的关键,该文提出了基于联合参数辨识的粒子群优化扩展粒子滤波的荷电状态(SOC)估计方法。在参数辨识阶段,结合遗忘因子递推最小二乘法在线辨识的优势,弥补粒子群辨识精度高但前期缺乏数... 详细信息

提高参数辨识的精度和SOC算法的精度是提高SOC估计的关键,该文提出了基于联合参数辨识的粒子群优化扩展粒子滤波的荷电状态(SOC)估计方法。在参数辨识阶段,结合遗忘因子递推最小二乘法在线辨识的优势,弥补粒子群辨识精度高但前期缺乏数据无法实时辨识的劣势,联合进行参数辨识;在SOC估计阶段,利用扩展卡尔曼滤波生成重要性密度函数,去克服粒子退化,同时采用粒子群优化算法优化重采样策略改进采样过程缓解粒子贫化。最后在联邦城市运行(FUDS)和US06高速公路运行(US06)工况下将所提算法与F-PF、F-PSO-PF、FPSO-PSO-PF进行了对比,结果表明,在FUDS工况下,方均根误差分别提高了65.4%、56.3%和43.5%;在US06工况下,方均根误差分别提高了45.8%、35.9%和35.1%,验证了所提算法具有较好的适应性和鲁棒性。

关键词：锂电池粒子群算法扩展粒子滤波算法荷电状态

CONSENSUS DESIGN FOR CONTINUOUS-TIME MULTI-AGENT SYSTEMS WITH COMMUNICATION DELAY

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Journal of Systems Science & Complexity 2014年第4期27卷 701-711页

作者： WANG Zhenhua YOU Keyou xu Juanjuan zhang Huanshui School of Control Science and engineering Shandong University department of automation Tsinghua University

This paper investigates a consensus design problem for continuous-time first-order multiagent systems with uniform constant communication *** that the agent dynamic is unstable and the diagraph is undirected,sufficient conditions are derived to guarantee *** key technique is the adoption of historical input information in the ***,when agent's own historical input information is used in the protocol design,the consensus condition is constructed in terms of agent dynamic,communication delay,and the eigenratio of the network *** result is presented to validate the effectiveness of the theoretical result.

关键词： Communication delay consensus protocol eigenratio historical input information multi-agent systems.

A Method to Detect the Abnormal Phenomenonin PVM Program Based on Petri Net

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Systems Science and Systems engineering 1999年第2期9卷 165-178页

作者： JIANG Chanaiun(department of Computer Science, Shandong Mining Institute, Tat’an 271019)(department of Computer Science, Tough university, Shanghai 200092)LI Caiwei(Institute of automation, Chinese Acadamy of Sciences, Beijing 100080)zhang Zhaoqing and QI

The parallel program verification can be divided into two aspects, the communicationand computation verification. In this paper, we mainly study the communication verification. First,we establish the Petri net specification for communication functions and basic statements of PVM;then, we give the steps of designing program verification model and abstract the abnormal phenomenonthat users often meet in the PVM parallel program into the characters of Petri net (including soleinformation, insufficient information, deadlock and livelock); finally, we give some detection algorithmto help users to eliminate these errors. In order to decrease the complexity of verification, we proposeseveral rules to simple the verification model.

关键词： parallel program verification Petri net verification model verification algorithm

Networked Knowledge and Complex Networks:An engineering View

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IEEE/CAA Journal of Automatica Sinica 2022年第8期9卷 1366-1383页

作者： Jinhu Lü Guanghui wen Ruqian Lu Yong Wang Songmao zhang School of automation Science and Electrical engineering State Key Laboratory of Software Development EnvironmentBeihang UniversityBeijing 100083 Academy of Mathematics and Systems Science Chinese Academy of SciencesBeijing 100190China department of Systems Science School of MathematicsSoutheast UniversityNanjing 211189China

Along with the development of information technologies such as mobile Internet,information acquisition technology,cloud computing and big data technology,the traditional knowledge engineering and knowledge-based software engineering have undergone fundamental changes where the network plays an increasingly important *** this context,it is required to develop new methodologies as well as technical tools for network-based knowledge representation,knowledge services and knowledge ***,the term“network”has different meanings in different ***,some breakthroughs in several bottleneck problems of complex networks promote the developments of the new methodologies and technical tools for network-based knowledge representation,knowledge services and knowledge *** paper first reviews some recent advances on complex networks,and then,in conjunction with knowledge graph,proposes a framework of networked knowledge which models knowledge and its relationships with the perspective of complex *** the unique advantages of deep learning in acquiring and processing knowledge,this paper reviews its development and emphasizes the role that it played in the development of knowledge ***,some challenges and further trends are discussed.

关键词： Complex network knowledge graph networked knowledge neural network

自动驾驶汽车仿真器综述:能力、挑战和发展方向

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交通运输工程与信息学报 2024年第1期22卷 1-24页

作者：张坤鹏常成王世璞张佐李力清华大学自动化系北京100084 河南工业大学电气工程学院郑州450001

仿真器在自动驾驶汽车(Autonomous Vehicle,AV)系统的研究、开发和验证中发挥着举足轻重的作用。本文系统地探讨了AV仿真器的国内外现状,并重点分析了其能力、面临的挑战和未来发展趋势。首先,梳理了AV仿真器的发展历程,阐述了国内外相... 详细信息

仿真器在自动驾驶汽车(Autonomous Vehicle,AV)系统的研究、开发和验证中发挥着举足轻重的作用。本文系统地探讨了AV仿真器的国内外现状,并重点分析了其能力、面临的挑战和未来发展趋势。首先,梳理了AV仿真器的发展历程,阐述了国内外相关研究现状。接着,依据技术性指标、功能性指标、性能指标和商业性指标,对各类仿真器进行了全面评估,同时讨论了它们在不同研究和开发任务中的适用性。此外,深入剖析了AV仿真器所面临的挑战和限制,结合深度学习、人工智能等先进技术的发展,提出了针对性的解决策略。对于如何克服AV仿真器在复杂环境和多元场景下的局限性,提出了一系列具有前瞻性的解决方案。在此基础上,着重强调了未来研究的机遇和新兴趋势,这些将为下一代仿真器的发展奠定基础。最后,本综述旨在为研究人员、开发者及行业利益相关者提供有益的参考,协助他们选择最符合需求的工具,并激发自动驾驶领域未来的创新潜力。综述的内容有助于推动AV仿真器在自动驾驶研究和实际应用中发挥更大的作用,从而为人类出行带来更为安全、便捷和高效的体验。

关键词：智能交通自动驾驶汽车仿真器综述自动驾驶汽车测试