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基于模型预测框架的燃料电池汽车混合动力系统能量管理

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车用发动机 2024年第5期 61-70页

作者：王金环宋占伟长春建筑学院吉林长春130607 吉林大学吉林长春130012

混合动力系统作为燃料电池汽车的关键组成部分,系统的能耗与寿命优化是推动其进一步商业化发展的关键,而能量管理策略(EMS)在提高燃料电池汽车混合动力系统的效率和燃料经济性方面发挥着重要作用。为有效降低混合动力系统的内部损耗,进... 详细信息

混合动力系统作为燃料电池汽车的关键组成部分,系统的能耗与寿命优化是推动其进一步商业化发展的关键,而能量管理策略(EMS)在提高燃料电池汽车混合动力系统的效率和燃料经济性方面发挥着重要作用。为有效降低混合动力系统的内部损耗,进一步提高系统经济性,提出了一种基于模型预测框架的混合动力系统能耗优化能量管理控制方法。首先构建包含动力系统内部损耗与氢气消耗的目标函数,然后利用模型预测架构求解目标函数来控制燃料电池的输出电流,以实现合理的能量分配,最后在Matlab中进行仿真,验证所制定方法的合理性和有效性。与应用较为广泛的等效氢耗最小策略(ECMS)相比,结果表明所提方法可以显著降低动力系统的内部损耗和氢气消耗。此外,该策略还可以有效保持蓄电池的荷电状态(SOC),延长动力系统的使用寿命。

关键词：燃料电池汽车混合动力系统能量管理模型预测控制

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Limit Set Problem of Multi-Agent Systems with Finite States: An Eigenvalue-Based Approach

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Journal of Systems Science & Complexity 2015年第3期28卷 570-579页

作者： wang Lin wang Xiaofan wang jinhuan Department of Automation Shanghai Jiao Tong University and Key Laboratory of System Control and Information Processing Ministry of Education School of Sciences Hebei University of Technology

This paper studies the limit set of multi-agent system with finite states, in which the system is converted into a linear system through an expansion of space. Then, the structure properties of the system matrix are investigated, and the relationships between the eigenvalues and the limit set are developed. As an application, the nilpotent problem of elementary cellular automata(ECA) known as algorithmically undecidable is considered, and all the nilpotent ECA are found out which consists of rules 0, 8, 64, 239, 253, 255.

关键词： Cellular automata eigenvalue finite states limit set multi-agent system nilpotent.

Orthogonal Decomposition of Incomplete-Profile Finite Game Space

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Journal of Systems Science & Complexity 2022年第6期35卷 2208-2222页

作者： DAI Xiaoyan wang jinhuan XU Yong School of Science Hebei University of TechnologyTianjin 300401China

This work studies the orthogonal decomposition of the incomplete-profile normal finite game(IPNFG)space using the method of semi-tensor product(STP)of ***,by calculating the rank of the incomplete-profile potential matrix,the bases of incomplete-profile potential game subspace(GPΩ)and incomplete-profile non-strategic game subspace(NΩ)are *** the bases of incomplete-profile pure potential game subspace(PΩ)and incomplete-profile pure harmonic game subspace(HΩ)are also *** bases offer an expression for the orthogonal ***,an example is provided to verify the theoretical results.

关键词： Incomplete-profile normal finite game orthogonal decomposition semi-tensor product of matrices

Stabilization of a class of congestion games via intermittent control

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Science China(Information Sciences) 2022年第4期65卷 278-279页

作者： Kaichen JIANG jinhuan wang School of Science Hebei University of Technology

Dear editor,Congestion games, firstly proposed in [1], have been widely applied in many practical problems such as electric vehicles charging, road pricing, and wireless spectrum sharing. It was proved in [1] that a c... 详细信息

关键词： semi-tensor product of matrices weighted congestion game evolutionary dynamics intermittent control Nash equilibrium

MULTI-AGENT BASED MODELING AND SIMULATING FOR EVACUATION PROCESS IN STADIUM

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Journal of Systems Science & Complexity 2014年第3期27卷 430-444页

作者： ZHANG Lei wang jinhuan SHI Qiongyu School of Control Science and Engineering Hebei University of Technology School of Sciences and School of Control Science and Engineering Hebei University of Technology

A multi-agent evacuation model is proposed in this paper to simulate the pedestrian evacuation process in stadium with or without *** authors give a multi-agent individual decisionmaking framework,in which the action direction of each pedestrian(called agent) is affected by the distance of the agent to the exits and the occupant number and density within the view field of the *** from the existing results,the authors divide all the pedestrians in the stadium into four classes:Young male,young female,old male,and old *** evacuation process,the weighting that affects individual decision-making between each class of agents is *** the simulation,the authors present the effects of obstacles,crowd distribution and the exit position in evacuation *** results show that the proposed model can reproduce exactly the real evacuation process in ***,this method might be useful to assess public buildings design.

关键词： Cellular automaton multi-agent pedestrian evacuation.

中医药治疗急性白血病化疗后骨髓抑制的研究进展

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医学综述 2024年第13期30卷 1604-1608页

作者：韩硕王金环黑龙江中医药大学第一临床医学院哈尔滨150040 黑龙江中医药大学附属第一医院血液病科哈尔滨150040

急性白血病(AL)是常见的血液系统恶性疾病,患者通常需要进行化疗,但化疗会导致骨髓抑制,进而使患者免疫功能下降、感染风险增加,并可能导致出血等严重并发症。近年来,AL化疗后骨髓抑制一直是临床关注的重点,未来还需要深入探讨骨髓抑制... 详细信息

急性白血病(AL)是常见的血液系统恶性疾病,患者通常需要进行化疗,但化疗会导致骨髓抑制,进而使患者免疫功能下降、感染风险增加,并可能导致出血等严重并发症。近年来,AL化疗后骨髓抑制一直是临床关注的重点,未来还需要深入探讨骨髓抑制的机制,寻找更加有效的治疗方法,以提高AL患者的生存质量和预后。中医药对AL化疗后骨髓抑制的治疗主要从整体观念和辨证论治的角度出发,强调调理气血、平衡阴阳,具有一定的疗效和优势。

关键词：急性白血病中医药治疗化疗骨髓抑制

CONSENSUS CONTROL DESIGN FOR MULTI-AGENT SYSTEMS USING RELATIVE OUTPUT FEEDBACK

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Journal of Systems Science & Complexity 2014年第2期27卷 237-251页

作者： wang jinhuan LIU Zhixin HU Xiaoming School of Sciences and School of Control Science and Engineering Hebei University of Technology Key Laboratory of Systems and Control Academy of Mathematics and Systems Science Chinese Academy of Sciences Optimization and Systems Theory and ACCESS Linnaeus Center Royal Institute of Technology

This paper studies the consensus problem of multi-agent systems in which all agents are modeled by a general linear system. The authors consider the case where only the relative output feedback between the neighboring agents can be measured. To solve the consensus problem, the authors first construct a static relative output feedback control under some mild constraints on the system model. Then the authors use an observer based approach to design a dynamic relative output feedback control. If the adjacent graph of the system is undirected and connected or directed with a spanning tree, with the proposed control laws, the consensus can be achieved. The authors note that with the observer based approach, some information exchange between the agents is needed unless the associated adjacent graph is completely connected.

关键词： Consensus decentralized control multi-agent systems observer.

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X80管线钢自动焊焊缝冲击能量分配研究

压力容器 2024年第6期41卷 30-35页

作者：韩涛温晓峰刘宇尹长华王金环中国石油天然气管道科学研究院有限公司河北廊坊065000 国家管网集团北方管道有限责任公司河北廊坊065000

针对X80管线钢实心焊丝自动焊的焊缝金属,采用仪器化冲击试验方法,研究了焊缝金属冲击能量分配和温度敏感性。结果表明,工程常用测试温度(-10℃)条件下,X80管道实心焊丝自动焊的焊缝金属冲击韧性(128~195 J)良好;总冲击吸收能量数据波... 详细信息

针对X80管线钢实心焊丝自动焊的焊缝金属,采用仪器化冲击试验方法,研究了焊缝金属冲击能量分配和温度敏感性。结果表明,工程常用测试温度(-10℃)条件下,X80管道实心焊丝自动焊的焊缝金属冲击韧性(128~195 J)良好;总冲击吸收能量数据波动显著大于裂纹形成能量,主要原因是裂纹扩展过程吸收能量波动较大引起的;系列温度冲击试验的总吸收能量和裂纹形成能量均具有上平台特征,但裂纹形成能量数据曲线的上平台温度范围(-40~20℃)更大,且随着试验温度升高,裂纹形成能量占比表现出非线性降低特性。长输管道工程设计温度范围(-40~20℃)内,焊缝金属裂纹形成能量测试结果具有温度无关性特征,依据上平台温度试验结果制定验收指标,可能不利于对焊缝金属裂纹萌生的控制,建议进一步开展相关研究,制定焊缝金属起裂韧性指标,从根本上控制焊缝金属裂纹的萌生。

关键词： X80管线钢实芯焊丝自动焊焊缝金属仪器化冲击试验能量分配

Stability of switched nonlinear systems via extensions of LaSalle's invariance principle

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Science in China(Series F) 2009年第1期52卷 84-90页

作者： wang jinhuan CHENG DaiZhan Institute of Systems Science Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing 100190 China

This paper studies the extension of LaSalle＇s invariance principle for switched nonlinear systems. Unlike most existing results in which each switching mode in the system needs to be asymptotically stable, this paper allows the switching modes to be only stable. Under certain ergodicity assumptions of the switching signals, two extensions of LaSalle＇s invariance principle for global asymptotic stability of switched nonlinear systems are obtained using the method of common joint Lyapunov function.

关键词： LaSalle's invariance principle switched systems weak common Lyapunov function asymptotically stable