MPC860在七号信令通信网中的应用

介绍了摩托罗拉嵌入式处理器MPC860的内部结构、主要功能和性能特性。主要分析了MPC860在通信方面的优越性和先进性,包括通信处理模块、中断处理机制、七号信令的特殊使用等。描述了MPC860在七号信令通信网中的具体应用方案。对我国通信现状和七号信令的通信原理和层次结构进行了介绍。     

面向WLAN的MPC852T嵌入式系统设计

MPC852T是Motorola新近推出的MPC866/MPC859T家族中面向低端的一款通信处理器.嵌入式Linux由于其费用低廉及开放源码而具有广阔的发展前景.文中在分析了MPC852T通信处理器和嵌入式Linux操作系统的基础上,将二者结合给出了一种嵌入式硬件系统的设计与实现,以及该硬件系统在无线局域网WLAN中的一种应用.实践证明,该硬件系统具有性能稳定、廉价、可扩展性强、适用面广等优点.     

Adaptive predictive control algorithm based on Laguerre Functional Model

Laguerre Functional Model has many advantages such as good approximation capability for the variances of system time‐delay, order and other structural parameters, low computational complexity, and the facility of online parameter identification, etc., so this model is suitable for complex industrial process control. A series of successful applications have been gained in linear and non‐linear predictive control fields by the control algorithm based on Laguerre Functional Model, however, former researchers have not systemically brought forward the theoretical analyses of the stability, robustness, and steady‐state performance of this algorithm, which are the keys to guarantee the feasibility of the control algorithm fundamentally. Aimed at this problem, we introduce the principles of the Incremental Mode Linear Laguerre Predictive Control (IMLLPC) algorithm, and then systemically propose the theoretical analyses and proofs of the stability and robustness of the algorithm, in addition, we also put forward the steady‐state performance analysis. At last, the control performances of this algorithm on two different physical industrial plants are presented in detail, and a number of experimental results validate the feasibility and superiority of IMLLPC algorithm. Copyright © 2005 John Wiley & Sons, Ltd.     

基于MPC860处理器的双PCMCIA以太网口实现

MPC860芯片因其丰富的按口和强大的通信处理能力而被广泛应用于通信领域。但是，它不能直接扩展出两个以上的10／100Mbps自适应以太网口，限制了应用。该文分析了实现中的关键问题，提出一种基于其PCMCIA接口扩展的双100Mbps以太网接口的实现方案。     

MPC850中复位逻辑和CPM协议切换的CPLD实现

介绍了用CPLD辅助设计方法在嵌入式系统中进行MPU复杂逻辑功能设计的总体方案。给出了通过对XC5144中复用控制寄存器进行配置以实现MPU复位逻辑和CPM协议切换的实现方案和设计要点。     

磁脉冲开关在准分子激光器中的应用

本文介绍了用于准分子激光器中的磁脉冲压缩开关的原理和结构，分析了磁脉冲压缩开关在激光器激励电路中的工作过程，并且给出了实验结果。实验表明，磁脉冲庄缩开关有效地压缩电流脉冲宽度，对激励电路中的闸流管起到保护作用。     

基于MPC850 VxWorks系统的BSP设计

首先介绍嵌入式系统VxWorks及其启动过程;分析了基于MPC 850最小系统的硬件和BSP的执行流程;重点研究了MPC850BSP的设计与应用程序加载,包括其硬件驱动程序的设计、应用程序加载、建立调试环境和target server的配置等;基于MPC850系统的Vxworks BSP调试平台的实现,对Vxworks上层应用软件和底层硬件驱动的并行开发有着很重要的意义。     

Integration of PV system with SMES based on model predictive control for utility grid reliability improvement.

This paper describes the integration of a photovoltaic (PV) renewable energy source with a superconducting magnetic energy storage (SMES) system. The integrated system can improve the voltage stability of the utility grid and achieve power leveling. The control schemes employ model predictive control (MPC), which has gained significant attention in recent years because of its advantages such as fast response and simple implementation. The PV system provides maximum power at various irradiation levels using the incremental conductance technique (INC). The interfaced grid side converter of the SMES can control the grid voltage by regulating its injected reactive power to the grid, while the charge and discharge operation of the SMES coil can be managed by the system operator to inject/absorb active power to/from the grid to achieve the power leveling strategy. Simulation results based on MATLAB/Simulink® software prove the fast response of the system control objectives in tracking the setpoints at different loading scenarios and PV irradiance levels, while the SMES injects/absorbs active and reactive power to/from the grid during various events to improve the voltage response and achieve power leveling strategy.     

一种基于模型预测的永磁同步电机直接转矩控制策略

针对传统直接转矩控制(DTC)方法中电压矢量切换时间不固定以及电压矢量切换点受限于滞环宽度等问题,将模型预测控制(MPC)应用于永磁同步电机(PMSM)DTC系统,提出了一种优化的电压矢量预测选择方法。一方面,将预测的定子磁链和电磁转矩送入相应的滞环控制器,从电压矢量有限集中选择合适的电压矢量以确保预测的磁链和转矩分别在各自的滞环内;另一方面,引入代价函数和优化策略,选择不同情况下相应的最优电压矢量,且可以同时考虑电流保护等额外的控制目标。在一台凸极PMSM驱动平台上对所提出的控制策略进行了试验验证。试验结果表明,所提出的控制策略能够有效地将转矩控制在滞环内,验证了该策略的有效性。     

工业过程的先进控制

在分析工业过程特点的基础上，总结了工业过程先进控制的发展现状，阐述了PID控制器参数整定和模型预测控制的基本概念和内容，讨论了工业过程先进控制的核心内容及其带来的可观的经济效益，并探讨了先进控制软件的产业化问题。