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本文首先建立了航天器姿态动力学及运动学方程,该方程具有较强的非线性特性。通过将状态耦合部分作系统干扰项的处理,使原来的非线性模型转化为线性模型加非线性干扰的形式,从而得到了更加简单明了的姿态控制系统的表达式。
在应用滑模变结构原理对系统进行控制器设计时,首先通过二次型最优法求出了最优滑动面,在此基础上,利用自适应滑模控制原理,设计出了合适的系统控制律。
最后,运用所设计的姿态控制系统对某航天器进行数值仿真,并对仿真结果进行了分析。仿真结果很好地体现出所设计的变结构控制器的优点,并成功地
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本文在分析城市交通信号控制研究现状和交叉*通信号控制原理、评价方
法的基础上,设计了单交叉*通信号两级模糊控制系统。分级模糊控制能有效
减少模糊规则数,易于提取模糊规则,适合于交通状况复杂的城市交叉*通信
号控制。但它存在难以由人工合理定义全部模糊隶属度函数的问题。为此本文进
一步采用遗传算法对两级模糊控制器中模糊隶属度函数进行优化。本文提出的方
法具有分级模糊控制的优点,同时可以使模糊隶属度的选取更为合理,获得更好
的控制效果。对一个四相位单交叉口,利用MA
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最佳控制(Opitmal Control)理论的讲义内容,通俗易懂。初学者推荐!-Optimal control (Opitmal Control) notes the contents of the theory, user-friendly. Recommended for beginners!
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软件无线电技术是用于卫星导航和第三代移动通信(3G) 数据处理和计算的最优解决方案。运用基于FPGA的So PC 嵌入式设计方法构造软件无线电系统,提高了对动态实时信号的处理能力。设计完成无线通信体系结构,以及ADC 模数转换,数字下变频,CPU 中央处理器,DSP 运算单元,PCI 桥以及数据控制等模块的详细组成。相对于目前常规系统,该系统在功耗和体积方面可节省30 以上,对高速数据流的处理和计算能力有显著提高,可以应用于Cellular/ PCS 基站,GPS 抗干扰接收机,相控阵接收机,频
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control book for engineering 2
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介绍了一种目前同步磁阻电机的新型弱磁控制的方案-An Optimal Current Vector Control for
Synchronous Reluctance Motors Incorporating
Field Weakening
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针对登月舱上升段轨迹优化问题,建立上升舱动力学模型,用无量纲技术建立最优控制模型;以燃料消耗最优为指标,利用Pontrjagin极小值原理,将问题转化为时间自由的两点边值问题(TPBVP)。采用一种基于初值猜测方法和向前扫描法求解TPBVP,得到最优上升轨迹。仿真结果表明:此方法收敛速度快、可靠性高,为月面返回实际应用提供一定的参考。-According to the problem of trajectory optimization for the lunar module in ascen
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In order to design an optimal controller for the thyristor controlled series capacitor (TCSC), a novel TCSC control model is developed.
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This
paper proposes an optimal control strategy for an HVdc light system
using a direct current vector control mechanism. The proposed
approach is compared with the traditional vector control
method for different HVdc control requirements, su
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这是几篇关于微型光伏并网逆变器在轻载条件下提高效率的方法的英文文章。-An Optimal Control Method for Grid-Connected Photovoltaic Micro-inverter to Improve the Efficiency at Light-load Condition
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清华大学硕士论文。
本文利用广义 Hermite-Biehler
定理,提出在 PID 控制器参数稳定域内设计高阶对象的最优 PID 控制器,
与此同时利用 Kharitonov 定理、Monte-Carlo 随机实验方法和 H∞混合灵
敏度约束研究 PID 控制器的鲁棒稳定性和性能鲁棒性。
-The algorithm for parameter’s region
of PID controller, which satisfies H∞ mixed sensitivi
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模糊控制、最优控制、以及神经网络控制的集合算法比较,主要适用于初学者-Fuzzy control, optimal control, a collection of algorithms and neural network control comparison, mainly for beginners
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Fuzzy Optimal Control for Multistage Fuzzy Systems
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Implementation of an optimal control
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Distributed Generators (DGs) in a microgrid may operate in three different reactive power control strategies, including PV, PQ and voltage droop schemes. This paper proposes a new stochastic programming approach for reactive power scheduling of a mic
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Optimal Fuzzy Logic-based Adaptive Controller
equipped with DFIG Wind Turbine for Frequency
Control in Stand Alone Power System-Optimal Fuzzy Logic-based Adaptive Controller
equipped with DFIG Wind Turbine for Frequency
Control in Stand Alo
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In this paper, a new scaling-based image-adaptive
watermarking system has been presented, which exploits human
visual model for adapting the watermark data to local properties
of the host image. Its improved robustness is due to embedding
in
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Gaussian Bare-Bones Differential Evolution
Differential evolution (DE) is a well-known algorithm
for global optimization over continuous search spaces. However,
choosing the optimal control parameters is a challenging task
because they are
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Optimal and adaptive control for a kind of 3D chaotic and 4D
hyper-chaotic systems
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The main contribution of this paper is using
optimal control theory for improving the convergence
rate of backpropagation algorithm. In the proposed
approach, the learning algorithm of backpropagation
is modeled as a minimum time control prob
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