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您的检索式：作者名="Samir LADACI"
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| 1 | Fuzzy Adaptive Control of a Fractional Order Chaotic System With Unknown Control Gain Sign Using a Fractional Order Nussbaum Gain显示文摘In this paper we propose an improved fuzzy adaptive control strategy, for a class of nonlinear chaotic fractional order(SISO) systems with unknown control gain sign. The online control algorithm uses fuzzy logic sets for the identification of the fractional order chaotic system, whereas the lack of a priori knowledge on the control directions is solved by introducing a fractional order Nussbaum gain. Based on Lyapunov stability theorem, stability analysis is performed for the proposed control method for an acceptable synchronization error level. In this work, the Gr ¨unwald-Letnikov method is used for numerical approximation of the fractional order systems. A simulation example is given to illustrate the effectiveness of the proposed control scheme. | Khatir Khettab Samir Ladaci Yassine Bensafia | 2019 | IEEE/CAA Journal of Automatica Sinica2019，6，3： | 3 |
| 2 | Fractional order extremum seeking approach for maximum power point tracking of photovoltaic panels显示文摘由于对研究的可更新的精力和差异的高兴趣考虑光电(PV ) 穿,一个大研究努力现在在各种各样的天气条件下面正在集中于太阳的发电和它的表演改进。在这篇论文,一个综合框架被建议,它完成了追踪的两个最大的力量点(MPPT ) ,最小的涟漪发信号。建议控制计划基于寻求极值(ES ) 与部分顺序系统(FOS ) 结合了。这调节汽车的策略被开发通过电压输入的规定最大化 PV 面板输出力量到 DC/DC 变换器以便在最大的力量点(MPP ) 附近带对稳定的摆动行为不变的 PV 系统。它被看操作员能关于时间反应和骚乱拒绝改进植物动力学的那份部分订单。建议控制器计划的有效性用测量太阳的放射数据与模拟被说明。 | Ammar NECAIBIA Samir LADACI Abdelfatah CHAREF Jean Jacques LOISEAU | 2015 | Frontiers in Energy2015，9，1： | 1 |
| 3 | 用于非线性混沌系统的基于分岔分数阶PID控制器设计方法(英文)显示文摘提出一个新的鲁棒分数阶比例-积分-微分(FOPID)控制器,以其中一个不稳定的固定点来稳定一个扰动非线性混沌系统。基于使用分岔图的比例-积分-微分行为,分析非线性混沌系统的稳定性。提取控制器参数的初始集,其后续可通过二次准则优化。积分和微分分数阶也被二次准则识别。在两个非线性系统(陈氏多涡卷混沌系统和Genesio-Tesi混沌系统)中应用数值模拟,结果表明分数阶比例-积分-微分控制器在稳定非稳定固定点过程中,甚至在随机扰动情况下,能够提供最好的闭环系统性能。 | Karima RABAH Samir LADACI Mohamed LASHAB | 2018 | Frontiers of Information Technology & Electronic Engineering2018，19，2： | 1 |
| 4 | Direct fractional order MRAC adaptive control design for a class of fractional order commensurate linear systems显示文摘In this paper,we introduce a direct fractional order adaptive control design based on model reference adaptive control(MRAC)structure for a class of commensurate fractional order linear systems with an arbitrary relative degree,and whose parameters are unknown.By generalising the application of standard direct MRAC strategy to plants described by fractional order models,we develop a fractional adaptive control scheme(FOMRAC)based on the output feedback.We also define an adaptation control law ensuring the stability of the closed-loop system and the good tracking of the reference trajectory.The asymptotic stability of the fractional order control system is proven using an extension of the Lyapunov theorem.Simulation results show the effectiveness of the proposed control method even for plants with model parametric variations and additive noises. | Hanane Balaska Samir Ladaci Abdelbaki Djouambi | 2021 | Journal of Control and Decision2021，8，3： | 0 |
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