共查询到18条相似文献,搜索用时 140 毫秒
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设计了一种适合于不同控制对象的通用复合模糊控制器,给出了控制器的组成、控制策略和实现算法。仿真结果表明,与采用普通模糊控制器的系统相比较,采用该控制器的系统具有更好的动念品质、控制精度和鲁棒性。从而证明了该模糊控制算法的有效性。 相似文献
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基于嵌入式的AGV视觉导航系统设计 总被引:1,自引:0,他引:1
概述了自动导航小车(AGV)系统的构造,在此基础上设计了一种应用于嵌入式系统,能有效实现视觉导航控制的模糊-PID混合控制器.实验结果表明,使用该控制器能较好地实现自动导航小车跟踪路径. 相似文献
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红外搜索跟踪系统伺服机构模糊-PID控制器设计及仿真研究 总被引:1,自引:1,他引:0
针对红外搜索跟踪系统中伺服机构常用的PID控制方法参数不易整定的缺点,将模糊控制和PID结合起来,构造一种模糊-PID控制器,使PID参数能进行在线调整,通过MATLAB下的仿真,从仿真结果中得出结论:模糊-PID比传统PID控制器具有更好的动态响应品质.响应时间、超调量、稳态精度及动、静态性能都得到了很大提高.从而验证了其有效性及实用性. 相似文献
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复杂控制算法实现,是目前运动控制器实现技术研究的一个热点.本文在完成复合模糊PI控制算法设计的基础上,分析了模糊运算硬件实现的复杂度,提出了一种数字化的运动控制器硬件设计方法:基于FPGA的数字硬件平台,采用Svstem Generator(SG)模块与VHDL语言相结合的方法进行控制器设计.该设计方法综合了SG快速高效建模和VHDL功能模块层次化的思想,缩短了FPGA控制器的设计开发周期.以无刷直流电机(BLDCM)为控制对象的实验结果表明,采用SG、MATLAB/Simulink与VHDL三者有机结合,利用FPGA设计模糊PI运动控制器的有效性,该模糊控制芯片的系统时钟达155.981MHz. 相似文献
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自寻优模糊集的自调整模糊控制器及通用模糊控制器的硬件实现 总被引:1,自引:0,他引:1
在文[1][2]的基础上,本文给出了自寻优模糊集自调整模糊控制器算法.并在这种软件设计的基础上,与文[4][5]提出的硬件构想相结合,实现了通用模糊控制器的硬件实现,其原理是用软件确定最佳的模糊集和控制规则,而用CLC连续逻辑电路实现控制作用.将这种控制器与最佳整定的DDC控制效果进行了比较,表明本文所提出的模糊控制器是简单可行的,模糊控制器对时变系统、非线性系统等有着广阔的应用前景.这种硬件具有很强的通用性,为模糊控制的进一步推广创造了条件. 相似文献
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Yonghong Hou Pichao Wang Wei Xiang Zhimin Gao Chunping Hou 《Signal, Image and Video Processing》2015,9(4):875-884
Rate control algorithms (RCAs) aim to achieve the best visual quality under the minimum bit rate and the limited buffer size. A self-parameter-tuning fuzzy-PID controller is proposed to reduce the deviation between the target buffer level and the current buffer fullness. Fuzzy logic is used to tune each parameter of the proportional-integral-derivative controller by selecting appropriate fuzzy rules through simulation in H.264/advanced video coding (AVC). To control the quality fluctuation between consecutive frames, a quality controller is adopted. The proposed RCA has been implemented in an H.264/AVC video codec, and our experimental results show that the proposed algorithm achieves smooth target bits while enabling better buffer control and visual quality. 相似文献
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A novel feedback current controller for a three-phase load driven by a power inverter is proposed. The main design specifications are robustness to load electrical parameters, fast dynamical response, reduced switching frequency, and simple hardware implementation. To meet previous specifications a multi-variable hysteresis type controller is proposed, designed as a finite-state automaton and implemented with a programmable logic device. After a general introduction, system analysis is performed, control targets are specified, and the proposed control strategy is presented and discussed. Further, actual controller architecture, based on simple analog-logic hardware, is shown and experimental results are presented using an induction motor as the inverter load. However, this does not limit the wider applicability of the proposed controller that is suitable for different types of three-phase AC loads 相似文献