通用复合模糊控制器的研究与设计

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。     

基于Intel 87c196kc的某机载设备随动系统数字控制器的实现

介绍了某机载光电设备随动系统控制器的设计与实现。该控制器是基于Intel公司87c196kc的数字控制器，设计中充分利用了87c196kc较强的运算能力及其它片内功能，使得控制器设计简捷、调整灵活、体积小，提高了系统的可靠性。     

电流型脉宽调制器控制器UC3844及其在微机电源中的应用

针对电压型脉宽调制器(PWM)控制器只有电压控制环，电流变化滞后电压变化，系统响应速度慢，稳定性差等固有缺点，提出了既有电压控制环，又有电流控制环的新型电流型PWM控制器。介绍了电流型PWM控制器UC3844的工作原理，并应用电流型PWM控制器UC3844设计了微机电源。结果表明，由电流型PWM控制器构成的微机电源具有电压调整率好，负载调整率好，系统稳定性好等优点。     

通用伺服系统全数字化控制器硬件设计与实现

采用受限单极模式ＰＷＭ系统作为全数字化控制器主控通道，是实现控制器快速可靠设计的关键技术，文章提出了基于该技术的全数字化控制器硬件设计与实现方法，并具体介绍了其在某系统应用中的一些技术和经验。     

欠驱动系统Pendubot的模糊控制策略

本文针对欠驱动Pendubot机器人系统，提出一种简单可靠的摇起及平衡控制策略。通过利用模糊控制及全状态反馈控制技术来分别设计摇起控制器及平衡控制器，其中模糊摇起控制器的设计使得系统的摇起可靠性得到大大的加强，并缩短了响应时间，两个控制器的转换通过转换装置实现。最后的仿真结果验证了算法的有效性。     

基于嵌入式系统的雷达控制器

功能强大的雷达控制器是实现现代相控阵雷达多功能、资源合理利用，以及在复杂环境下提高雷达作战能力的重要部件。文中通过分析嵌入式系统的开发过程、特点，提出了以嵌入式系统为核心进行雷达控制器设计的观点，比较详尽论述了雷达控制器的实现方法。     

舰载机纵向自动着舰导引系统H∞降阶控制器设计

利用H∞控制理论设计飞机纵向着舰导引系统时，主要问题是控制器阶数过高，机载计算机难以承受。采用基于稳定准则的加性降阶法，设计了某型飞机纵向着舰导引系统H∞降阶控制器。仿真结果表明，所设计的降阶控制器可完全满足着舰系统对抗扰和精确跟踪的要求。     

ARM及其嵌入式系统在LED屏幕中的应用

主要介绍了ARM的相关硬件知识、嵌入式系统及设计原则，然后介绍了ARM系统控制器在不同LED屏幕的应用，主要有ARM7设计的PLC、ARM7的条屏控制器、ARM7的LED全彩大屏幕控制器。最后写了未来关于ARM9的LED控制系统。     

多通道温度控制器的研制

介绍一种多通道温度控制器的主要技术性能，描述了该控制器以８０９８单片机为核心的硬件系统和软件结构，并就程序设定功能和应用效果全了全面分析，实际控制结果表明：该控制器具有较高的温度控制品质。     

通用型定时控制器的研究

介绍一种通用型电脑定时控制器，描述了该控制器中ＭＣＳ５１单片机系统的硬件设计及软件结构；对这种控制器的应用与扩展做了全面分析。     

光电跟踪系统控制器硬件设计

为了提高光电跟踪系统控制器的性能,文中对光电跟踪系统控制器的硬件部分进行了设计。首先给出光电跟踪系统控制器硬件电路框图。接着介绍最小系统的设计方案,其中包括存储器扩展,外部时钟,复位电路,电源电路,CPU板的抗干扰分析与设计等部分。最后对模拟量、数字量模块和通信模块设计进行了详细阐述。采用该控制器不仅增强了光电跟踪系统的灵活性和适应性,保证了系统性能要求,而且还具有良好的实时性。     

基于Fuzzy-DDS的超声换能器频率自动跟踪系统

针对传统超声频率跟踪系统锁相范围窄,电源启动或负载突变时易失锁等缺点,提出了一种将数字模糊控制器和数字频率直接合成(DDS)相结合的复合频率跟踪策略,对其设计方法、工作原理进行阐述。实验结果表明,运用该种控制方法的超声系统具有频率跟踪速度快,跟踪准确的优点,实现了系统的稳定、高效运行,提高了换能器的效率。     

A visual servoing system for edge trimming of fabric embroideries by laser

This paper describes a position-based visual servoing system for edge trimming of fabric embroideries by laser. The high-speed vision system, based on a 220 Hz digital camera and the TMS320C40 parallel DSP processor is presented, and the novel image processing algorithm developed for seam tracking applications is briefly explained. Two methods for seam trajectory generation are discussed. In the first method the tracking trajectory is determined only by using the vision data; in the second method, which is suitable for periodic patterns, the predetermined path data is modified by the vision data. A tracking controller using a feedforward controller in the tangential direction of the seam and a feedback controller in the normal direction is described. The custom built manipulator is a four-axis velocity controlled gantry robot with independent PID controllers for each axis. The axes’ reference speeds are commanded and updated by the top-level tracking controller in equal time intervals. The gantry controller program runs on a Pentium PC. The experimental results in edge trimming of different seam patterns are presented.     

An adaptive wavelength tunable optical filter employing anangle-tuned interference filter and an intelligent digital controller

This paper describes an adaptive wavelength tunable optical filter, which is composed of an angle-tuned interference optical filter and an intelligent digital controller. The new angle-tuned interference filter consists of a dielectric interference optical filter and a piezoelectric angle-tuning mechanism. It achieves quick wavelength switching within 2.5 ms in a 30 nm tuning range and a sufficiently low crosstalk less than -30 dB. The intelligent digital controller has two functions: wavelength tracking and wavelength channel selection. Combining these technologies, we have developed a practical low-cost tunable filter suitable for a post-optical-amplifier filter in a high-sensitivity detection system and a channel selector in a WDM system that requires 10-100 ms channel selection time. With a wavelength tracking operation, we have confirmed -35 dBm high-sensitivity detection in 20 nm wavelength range in a 10 Gb/s system. We have also confirmed a wavelength channel selection operation within 18 ms in a three-channel wavelength division multiplexed (WDM) system whose channel spacing is 4.4 nm     

一类不确定混沌系统时滞反馈控制

针对一类不确定性混沌系统,提出了一种具有很好鲁棒性的时滞反馈控制。基于Lyapunov稳定性理论,设计了控制器,实现了快速跟踪混沌系统的不稳定周期轨道。利用梯度下降法获得不稳定周期值,解决了需要预先知道不稳定周期的困难。最后,以Lorenz系统为例,进行了数值仿真,结果证明了该方法的有效性。     

高压断路器三相永磁无刷直流电机机构控制算法研究

针对高压断路器三相永磁无刷直流电机机构,研究了不同控制策略下电机操动机构的运动特性.考虑高压断路器的分、合闸操作过程,建立了永磁无刷直流电机操动机构运动控制系统的仿真模型,采用数字式双闲环控制,内环为电流环,采用PI控制,外环为速度环,基于传统PID控制器、单神经元PID控制两种不同控制策略控制.通过对伺服控制系统的仿真分析得到了电机操动机构速度跟踪控制特性.结果表明,单神经元PID控制器能够较好的实现触头速度的跟踪控制,使其按理想运动特性曲线运动,是一种较理想、有效的控制方法.     

Power controller design for maximum power tracking in solar installations

A state space approach to the design of a maximum power point (MPP) tracking system for photovoltaic energy conversion is presented. The problem of optimal-power control of a nonlinear time-varying system is reduced to an ordinary problem of dynamic system stability in state space by applying MPP conditions in controller design. The resulting tracking system searches for the reference point and tunes the converter for maximum power delivery to a load that may represent an end-user, or an energy-storage element, or a power grid-interface. The proposed design procedure for the MPP tracking system ensures a global asymptotic stability under certain conditions, and a minimum degree of the dynamic feedback. The design is verified using the virtual test bed, demonstrating accurate MPP tracking capability under unpredictable weather change, parameter variation, and load disturbance. The tracking system can be applied either to a stand-alone or grid-connected photovoltaic installations, and can be implemented in either analog circuitry or a digital microcontroller.     

基于ARM核微控制器的异步电机矢量控制

基于矢量控制理论设计了一套全数字变频调速系统,采用基于一个支持实时仿真和嵌入跟踪的32/16位ARM7TDMI-S CPU LPC2210微控制器作为整个控制系统的CPU,并对LPC2210扩展了外部Flash存储器单元作为系统的程序存储器,介绍了系统结构及硬件设计方案。     

Continuous Path Controller for the Remote Ultrasound Diagnostic System

A master-slave type remote ultrasound diagnostic system has been developed. The impedance controller has been implemented and reported for the positions of the master and slave manipulators to display and control the contact force between the ultrasound probe and the affected area. The present paper introduces an alternative orientation controller utilizing continuous path (CP) control in the remote ultrasound diagnostic system. The major contribution of the present paper is an introduction to the velocity-control-based CP controller for the master-slave type remote medical system, which realizes the continuous motion of the slave manipulator without a reduction in the master motion tracking performance. It is difficult to communicate information for control at high sampling rates between the master and slave site because the communication network between the master and slave site (local area network, integrated services digital network, asymmetric digital subscriber line, etc.) is limited. To cope with this problem, the CP controller was introduced to the orientation controller in special remote medical systems. The CP control realizes the continuous motion of the slave manipulator under the limited sampling rate of the orientation data transmitted by the master manipulator and high master motion tracking performance of the slave manipulator. This allows the slave manipulator safety to be improved and decreases the volume of the transmitted data. The experimental results demonstrate the accuracy of the path control of the slave manipulator using the CP control in the master--slave manipulation system, compared with the conventional point-to-point control.     

A DSP-based single-phase AC power source

This paper presents the development of a single-phase AC power source, which is capable of generating high-quality sinusoidal waveforms with adjustable amplitudes and frequencies over a wide range. Moreover, various types of arbitrary waveforms can also be generated. The system consists essentially of a well-controlled single-phase pulsewidth modulated inverter. To perform tight closed-loop control of the inverter, a digital controller based on the generalized predictive control approach has been developed. The controller gains are determined by minimizing a cost function that reduces both the tracking error and the control signals. To evaluate the proposed approach, a digital-signal-processor-based experimental prototype has been constructed. Experimental results under various loading conditions have demonstrated that the system performs well