MatlabEng_demo

预测控制是一种新型的控制算法之一。经典的PID控制方法简单方便,但是精度不高。近年来发展的自适应、自校正方法精度高,但其本质要求在线辨识对象模型,对过程的未建模动态和扰动的适应能力差,鲁棒性不好。预测控制方法集PID和自适应方法二者之长,是一种面向工业过程特点、对模型要求低、在线计算方便、控制精度高的算法。数字计算机向小型、高速、大容量、低成本方向的发展,为预测控制这类新算法的实现提供了物质基础。 本文以PCT—Ⅲ型过程控制系统装置为平台,将预测控制算法运用到实际系统中去,该装置分为水位系统和温度系统。本文是将多步预测控制算法运用到温度系统。应用控制软件采用北京亚控公司的组态王软件(KingView),它界面设计能力强,也可以简单编程,但计算能力差,不能进行矩阵计算。而在温度多步预测控制中,计算量大,编程复杂,因此引入Matlab软件解决计算和编程,要解决的问题是MATLAB和组态王的数据交换,采用动态数据交换技术(DDE)。 预测控制算法有多种,本文采用的是动态矩阵控制方法(DMC)。(Predictive control is one of a new control algorithm. The classic PID control method is simple, but the accuracy is not high. In recent years the development of adaptive, self-calibration method is accurate, but its object model online identification of the essential requirements of the process unmodeled dynamics and disturbances poor adaptability, robustness is not good. Prediction and adaptive PID control method sets the length of the two methods is a feature for industrial processes, low requirement on the model, online convenience of calculation, the control algorithm for high accuracy. Digital computers to small, high-speed, large capacity, lower costs of development, such as predictive control implementation of the new algorithm provides the material base. In this paper, PCT-Ⅲ type of process control system devices as a platform, the predictive control algorithm to apply to the actual system, the device is divided into water system and temperature system. This is a multi-step pre)

BP网络能学习和存贮大量的输入-输出模式映射关系，而无需事前揭示描述这种映射关系的数学方程。(BP network can learn and store a lot of input- output model mapping, without prior reveal describe the mathematical equations of the mapping relationship.)

利用非线性控制完成光伏并网逆变器的设计，设计中采用先进的反步法，介绍很好。(Using nonlinear control to complete the design of the photovoltaic (pv) grid inverter, adopted in the design of advanced reverse moves, the introduction is very good.)

说明：  本文介绍了Ziegler-Nichois规则的PID控制器设计及其改进算法 ,并给出了基于MATLAB的实现方法和仿真。(This article describes the rules of Ziegler-Nichois PID controller design and its improved algorithms and implementation is presented based on MATLAB and simulation methods.)

it s combination from okumurra hatta pathloss and walfish ikegami model it can count pathloss in urban,suburban, and rural area

静止无功补偿器部分程序，基于模块化设计，实现无阻尼控制的SVC功能。(Static var compensator part of the program，Based on modular design, the SVC damping control function.)

利用相关分析法辨识系统的脉冲响应并比较离散、递推、矩阵三种算法结果，包括M序列的生成(Impulse Response Identification system using correlation analysis and comparison of discrete, recursion, matrix three algorithms results, including the M sequence generation)

Global definitions for the ARCnet interface.

AVI2Images 读取指定的AVI视频文件，并把视频帧依次写入图像文件。(AVI2Images reads the specified AVI video files and write video frames to the image files in order.)

对国际上通用的标准Shepp-logan人头模体进行投影和反投影、滤波反投影、ART和SART重建。(include anisotropic filter, bilateral filter and functions for tomographic reconstruction using BP, FBP, ART, SART, LSQR algorithm)