摘要：This paper presents the containment analysis and design of heterogeneous linear multi-agent systems(MAS)with time-delay under the output *** leaders are treated as exosystems and an modified output regulation error is designed,which can deal with more than one leader in containment control,then the containment problem will be turned into an output regulation problem.A novel analysis framework of the output regulation is proposed to design a dynamic state feedback control law for containment error and distributed observer when the agents cannot receive external system signal,which guarantees the convergence of all follower agents to the dynamic convex hull spanned by the *** system stability for time-delay containment is proved by the output regulation method instead of the Lyapunov ***,a numerical example is given to illustrate the validity of the theoretical results.

摘要：针对高速动车组(EMU)的协同控制问题,本文将各动力单元描述为智能体,根据智能体之间的网络拓扑和相互作用关系,建立高速动车组多智能体模型;设计了分布式有限时间协同控制算法来实时生成各智能体的牵引/制动力,实现了动车组分布式协同速度跟踪,同时提高了跟踪速度;应用图论、Lyapunov稳定性理论证明了所设计的控制算法可以保证系统的收敛性和稳定性。最后,通过MATLAB数值仿真验证了该协议的有效性和正确性。仿真结果表明:有限时间一致性算法具有良好的稳态和动态性能,列车跟踪速度提高了约30%。

摘要：大规模电网输电线路的关键性支路的辨识是输电系统快速处理连锁故障乃至全网崩溃故障的关键。为此,本文提出了一种基于功率传输分布因子和支路暂态稳定性函数的电网关键线路综合辨识方法。首先,从电网网络结构的角度,采用功率传输分布因子函数量化输电网络中每一条支路的关键性;其次,从电网动态运行的角度采用支路暂态稳定性函数,求解各个支路的暂态势能稳定性来评估各支路的脆弱度。最后,综合两种评估方法构建电网线路关键性综合性评估函数科学量化每条输电线路在全网功率传输中的作用,并在IEEE39节点系统中仿真验证了该综合性评估方法的有效性。

摘要：活塞式压缩机的油耗是生产厂家和用户普遍关心的问题,本文针对这一问题提出了几种方案。在文中着重论述了方案三,通过采用不同于传统结构和材质的具有自润滑特性的复合材料作活塞环,从而解决压缩机的油耗问题。