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2018 7th International Conference on Systems and Control (ICSC)最新文献

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Robust Control for Human Postural Balance: Design and Simulation* 人体姿势平衡的鲁棒控制:设计与仿真*
Pub Date : 2018-10-01 DOI: 10.1109/ICOSC.2018.8587836
O. Kuzmych, J. Awrejcewicz, A. Aitouche, Nataliia Bahniuk
In this paper, an optimal controller for dynamic model describing a system of human postural balance in response to small perturbations is developed. The purpose is to analyze the scientific problem of particular simulating the work of separate parts of central nervous system (CNS) in terms of understanding the ways of its functioning, as well as the application of these knowledge for solving topical and actual issues of biomechanics and mechatronics. In the article the problems of adaptation of control systems methods analysis of human postural balance in a presence of CNS problems are considered. Robust control strategy that describes, as close as possible the role of knee, ankle and hip joints in the human postural stabilization is developed. The proposed control law simulates the ankle joints functioning and minimizes the nervous efforts of the central nervous system, as well as implements the stabilization of the center of mass of a human in the presence of small state perturbations of the body from the position of equilibrium in the sagittal plane.
本文提出了一种用于描述人体姿态平衡系统对小扰动响应的动态模型的最优控制器。目的是分析模拟中枢神经系统(CNS)各部分工作的具体科学问题,了解其功能方式,并将这些知识应用于解决生物力学和机电一体化的局部和实际问题。本文考虑了控制系统的自适应问题,以及存在中枢神经系统问题的人体姿势平衡分析方法。鲁棒控制策略描述,尽可能接近膝关节,踝关节和髋关节在人体姿势稳定中的作用。所提出的控制律模拟了踝关节的功能,使中枢神经系统的神经压力最小化,并实现了人体在矢状面平衡位置存在小状态扰动时的质心稳定。
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引用次数: 5
Modifier Adaptation using transient measurements to compute plant gradients * 使用瞬态测量计算植物梯度的自适应方法*
Pub Date : 2018-10-01 DOI: 10.1109/ICOSC.2018.8587823
T. Rodríguez-Blanco, D. Sarabia, C. P. Moraga
Traditionally, Modifier-Adaptation (MA) proceeds by iteratively adjusting the optimization problem with modifiers calculated from steady-state information obtained after each real-time optimization (RTO) execution. This implies a long convergence time. This paper presents one approach to speed up the convergence to the optimum by using transient information of the process. This technique is based on a recursive identification algorithm to estimate process gradients from transient measurements, achieving the plant optimum faster than traditional MA techniques. The method has been implemented in the operation of a depropanizer distillation column in order to show its advantages.
传统的修正自适应(MA)方法是利用每次实时优化(RTO)执行后获得的稳态信息计算出的修正子,对优化问题进行迭代调整。这意味着较长的收敛时间。本文提出了一种利用过程的暂态信息加快收敛到最优的方法。该技术基于递归识别算法,从瞬态测量中估计过程梯度,比传统的MA技术更快地实现工厂最优。以脱丙烷精馏塔为例,说明了该方法的优越性。
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引用次数: 0
Static Output Feedback Control with H∞ performance for 2-D Discrete Systems in Roesser Model 基于Roesser模型的二维离散系统的H∞性能静态输出反馈控制
Pub Date : 2018-10-01 DOI: 10.1109/ICOSC.2018.8587621
Khalid Badie, M. Alfidi, F. Tadeo, Z. Chalh
This paper revisits the problem of H∞ static output feedback control of two-dimensional (2-D) discrete systems described by the Roesser model. Based on a Bounded Real Lemma of 2-D Roesser Model and Finsler’s Lemma, a new sufficient condition for H∞ performance analysis of the closed-loop system is first derived and then the static output feedback controller is obtained such that the closed-loop system is asymptotically stable with a guaranteed H∞ disturbance attenuation level. All results are developed in terms of linear matrix inequalitiy (LMI). Finally a numerical example is given to show the effectiveness of the proposed method.
本文重新研究了由Roesser模型描述的二维(2-D)离散系统的H∞静态输出反馈控制问题。基于二维Roesser模型的有界实引理和Finsler引理,首先导出了闭环系统H∞性能分析的一个新的充分条件,然后得到了使闭环系统渐近稳定并保证H∞扰动衰减水平的静态输出反馈控制器。所有的结果都是根据线性矩阵不等式(LMI)来发展的。最后通过数值算例验证了该方法的有效性。
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引用次数: 3
Integral Backstepping/LFT-LPV H∞ Control for the Trajectory Tracking of a Quadcopter 四轴飞行器轨迹跟踪的积分反演/LFT-LPV H∞控制
Pub Date : 2018-10-01 DOI: 10.1109/ICOSC.2018.8587839
Seif-El-Islam Hasseni, L. Abdou
In this paper, a hybrid robust control strategy is proposed to solve the trajectory tracking of a quadcopter. The quadcopter model is divided into two subsystems; rotational subsystem and translational one. We present the rotational one as a quasi-LPV system and design an LFT-based LPV H∞ controller to achieve the stabilization of the orientation coordinates with taking into account the disturbances and the actuators’ dynamics. On the other hand, in order to guarantee the trajectory tracking, the backstepping controller is designed for the translational subsystem with integral action, to get a null steady state error. The simulation results show the efficiency and the robustness of our controller against disturbances, noises and parametric uncertainties.
针对四轴飞行器的轨迹跟踪问题,提出了一种混合鲁棒控制策略。四轴飞行器模型分为两个子系统;旋转子系统和平动子系统。我们将旋转系统描述为一个准LPV系统,并设计了一个基于lft的LPV H∞控制器来实现方向坐标的镇定,同时考虑了扰动和作动器的动力学。另一方面,为保证轨迹跟踪,对具有积分作用的平移子系统设计了反步控制器,使其稳态误差为零。仿真结果表明,该控制器对干扰、噪声和参数不确定性具有良好的鲁棒性和有效性。
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引用次数: 5
Mathematical Model of a Cogeneration System composed of a Floating Wind Turbine and Two Marine Current Turbines 由浮式风力机和两台海流机组成的热电联产系统的数学模型
Pub Date : 2018-10-01 DOI: 10.1109/ICOSC.2018.8587829
F. M. Tamarit-Peris, E. García, A. Correcher, E. Quiles, F. Morant
This paper develops the mathematical model of a cogeneration system composed of a floating wind turbine –type "OC3-Hywind"– and two marine current turbines with the aim of increasing the energy generated by the floating installation and, at the same time, offering the possibility of using those turbines as actuators, being the later useful for the stabilization of the platform in hard weather conditions.The mathematical model for this system has been developed using Matlab. In this tool, several tests have been carried out on the structural stability of the system considering the interactive phase of the acting forces.We have used Matlab to freely design the mechanical system and thus, achieve the desired model, which are a wind turbine type OC3-Hywind and two current turbines.The capacity of Matlab offers the possibility of evaluating the cogeneration system with different geometries, aerodynamic airfoils and external meteorological conditions; and also including or eliminating certain elements, etc. This versatility will be useful in future studies aimed to evaluate this system and maximize the production of energy.In this paper, the first version of the tool is introduced using the "one-dimensional momentum theory" to compute the thrust of the turbines. This theory allows the obtainment of a good approximation to know which will be the behavior that the steady state response system will have. The operational capacity of the tool has been validated by comparing the results with the certificated test of the OC3-Hywind calculated in FAST 8.
本文开发了一个由浮式风力涡轮机-“OC3-Hywind”-和两个海流涡轮机组成的热电联产系统的数学模型,目的是增加浮式装置产生的能量,同时,提供使用这些涡轮机作为执行器的可能性,后者对平台在恶劣天气条件下的稳定有用。利用Matlab建立了该系统的数学模型。在此工具中,考虑作用力的相互作用阶段,对系统的结构稳定性进行了多次测试。我们利用Matlab对机械系统进行了自由设计,从而实现了期望的模型,即一台OC3-Hywind型风力机和两台电流型风力机。Matlab的能力提供了在不同几何形状、气动翼型和外部气象条件下评估热电联产系统的可能性;也包括或消除某些元素,等等。这种多功能性将有助于未来旨在评估该系统和最大化能源生产的研究。本文介绍了该工具的第一个版本,该工具使用“一维动量理论”来计算涡轮机的推力。这个理论允许获得一个很好的近似,以知道稳态响应系统将具有的行为。通过将结果与FAST 8中计算的OC3-Hywind认证测试结果进行比较,验证了该工具的操作能力。
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引用次数: 1
Robustness Improvement Using the Filtered Smith Predictor Based Fractional Integral-Fractional Derivative Controllers: Application to a Pressure Plant 基于过滤Smith预测器的分数阶积分-分数阶导数控制器鲁棒性改进:在压力装置中的应用
Pub Date : 2018-10-01 DOI: 10.1109/ICOSC.2018.8587804
Roohallah Azarmi, Mahsan Tavakoli‐Kakhki, R. Vilanova, A. Fatehi, A. Khaki‐Sedigh
This article presents a simple frequency domain control technique to tune the parameters of a filtered Smith predictor based fractional integral-fractional derivative (FSP-FIFD) controller. The proposed method provides a practical approach to compensate stable First Order Plus Dead Time (FOPDT) transfer functions based on a filtered Smith predictor (FSP) control structure. In this control structure, an integer order predictor filter is used to improve the noise reduction of the control system. By benefiting from the proposed FSPFIFD controller, not only the phase margin and the gain crossover frequency of the control system are adjustable by tuning the free controller parameters, but also the robustness of the compensated system is enhanced. Finally, the designed FSPFIFD controller is implemented on a laboratory scale pressure plant and the obtained results are compared with those of applying a filtered Smith predictor based PI (FSPPI) controller in a similar structure. The practical results demonstrate the simplicity of application and the effectiveness of the proposed tuning rules.
本文提出了一种简单的频域控制技术来调整基于分数阶积分-分数阶导数(FSP-FIFD)控制器的滤波Smith预测器参数。该方法提供了一种基于滤波Smith预测器(FSP)控制结构的补偿一阶+死区(FOPDT)稳定传递函数的实用方法。在该控制结构中,采用了整数阶预测器滤波器来提高控制系统的降噪效果。利用所提出的FSPFIFD控制器,不仅可以通过调整自由控制器参数来调节控制系统的相位裕度和增益交叉频率,而且还增强了补偿系统的鲁棒性。最后,设计的FSPFIFD控制器在实验室规模压力装置上实现,并与在类似结构中应用滤波Smith预测器的PI (FSPPI)控制器的结果进行了比较。实际结果表明,所提出的调优规则应用简单、有效。
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引用次数: 5
Indoor Localisation using Aroma Fingerprints: Comparing Nearest Neighbour Classification Accuracy using Different Distance Measures 利用香气指纹进行室内定位:比较不同距离度量下的最近邻分类精度
Pub Date : 2018-10-01 DOI: 10.1109/ICOSC.2018.8587811
G. Minaev, Philipp Müller, A. Visa, R. Piché
Measurements from an ion mobility spectrometry electronic nose (eNose) can be used for distinguishing different rooms in indoor localisation. An earlier study showed that the Nearest Neighbour classifier with Euclidean distance for features provides reasonable accuracy under certain conditions. In this paper 66 alternative distance measures are compared to the Euclidean distance and principal component analysis (PCA) is applied to the data. PCA shows that the measurements on the various channels of the eNose are correlated and that using principal components 1, 2 and 4 increases the accuracy considerably. Furthermore, the experiments revealed three Pareto optimal distance measures that reduce the misclassification rate between 9-10% while using only 82-88% of the search time compared with Euclidean distance.
离子迁移率光谱电子鼻(eNose)的测量结果可用于区分室内定位中的不同房间。早期的研究表明,对特征进行欧式距离的最近邻分类器在一定条件下具有合理的准确率。本文将66种替代距离度量与欧几里得距离进行了比较,并对数据进行了主成分分析。主成分分析表明,各通道的测量值具有相关性,使用主成分1、2和4可以显著提高测量精度。此外,实验揭示了三种帕累托最优距离度量,与欧几里得距离相比,它们将错误分类率降低了9-10%,而搜索时间仅为82-88%。
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引用次数: 3
Further results on H∞ Filtering Design for Continuous Time–Systems With Time–Varying Delay Systems: Three Term Approximation Approach 具有时变时滞系统的连续时间系统H∞滤波设计的进一步结果:三项逼近法
Pub Date : 2018-10-01 DOI: 10.1109/ICOSC.2018.8587814
H. Aiss, T. Zoulagh, A. Hmamed, A. Hajjaji, J. Bosche
This paper focuses on H∞ filter design for systems with time-varying delay using Input Output approach. A new approximation of time varying delay is firstly proposed. Based on scaled small gain theorem and Lyapunov-Krasovskii approach, a novel asymptotic stability criterion of the filtering error system is established. Thus, The H∞ full- and reduced-order filters are designed in terms of linear matrix inequalities (LMIs). Finally, illustrative example is presented to demonstrate the validity of the proposed method.
本文研究了用输入输出方法设计时变时滞系统的H∞滤波器。首先提出了一种新的时变时滞近似。基于比例小增益定理和Lyapunov-Krasovskii方法,建立了一种新的滤波误差系统渐近稳定性判据。因此,根据线性矩阵不等式(lmi)设计了H∞全阶和降阶滤波器。最后,通过实例验证了所提方法的有效性。
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引用次数: 2
An advanced energy management system with an economical optimization for a multi-sources stand-alone Home 先进的能源管理系统,具有经济优化的多源独立家庭
Pub Date : 2018-10-01 DOI: 10.1109/ICOSC.2018.8587815
T. Alnejaili, L. Chrifi-Alaoui, D. Mehdi, A. Alibi, S. Drid
This paper proposes an advanced energy management system (EMS) for a stand-alone hybrid energy system. The considered hybrid system includes a photovoltaic panel, a fuel cell, an electrolyzer and a battery bank. The EMS aims to optimize the utilization cost of the hybrid power system and to improve its energy balance with the elimination of any energy deficit.The hybrid power system has been tested by simulation using models implemented in Matlab/Simulink software. The simulation is performed over a long period of time in order to evaluate the effectiveness of the management strategy. The simulation results confirm the efficiency of the proposed control strategy, as it increases the reliability of the system and improves its energy balance.
针对单机混合能源系统,提出了一种先进的能源管理系统。考虑的混合系统包括一个光伏板,一个燃料电池,一个电解槽和一个电池组。EMS旨在优化混合动力系统的利用成本,并通过消除任何能量赤字来改善其能量平衡。利用Matlab/Simulink软件实现的模型对混合动力系统进行了仿真测试。模拟在很长一段时间内进行,以便评估管理策略的有效性。仿真结果验证了所提控制策略的有效性,提高了系统的可靠性,改善了系统的能量平衡。
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引用次数: 2
Bond graph model for prognosis and health management of mechatronic systems based on energy activity 基于能量活度的机电系统预测与健康管理键合图模型
Pub Date : 2018-10-01 DOI: 10.1109/ICOSC.2018.8587818
Manarshhjot Singh, B. O. Bouamama, A. Gehin, Pushpendra Kumar
Timely and accurate, detection and prediction, of fault is beneficial for every safety. However, it is a necessity for modern autonomous systems like autonomous vehicles and robots due to the absence of continuous human supervision. This paper attempts to establish energy as a viable parameter for fault identification. For this Element Activity Index is used as a metric for identification, calculated in this paper using only the sensor data. The proposed technique is then implemented on a bicycle vehicle dynamic model. Abrupt faults of different intensities are introduces in different elements of the model and their proper detection and isolation is checked using the proposed technique. The visibly different residual trends allows us for accurately detect the presence and also the location of the fault.
及时准确地发现和预测故障,对每一个安全都是有益的。然而,由于缺乏持续的人类监督,这对于自动驾驶汽车和机器人等现代自主系统是必要的。本文试图建立能量作为故障识别的可行参数。为此,元素活动指数被用作识别的度量,在本文中仅使用传感器数据计算。然后在自行车车辆动力学模型上实现了该技术。在模型的不同单元中引入了不同强度的突变故障,并利用所提出的技术对其进行了检测和隔离。明显不同的残差趋势使我们能够准确地检测故障的存在和位置。
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引用次数: 2
期刊
2018 7th International Conference on Systems and Control (ICSC)
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