ganraohuanjing2

摘要 随着火电机组向大容量、高参数和高效率方向发展，对机组热工自动控制系统控制品质的要求也随之提高。在热工过程中，大多数热工对象具有较大的惯性和迟延，且是非线性和慢时变的，部分对象还是多变量的，因而具有很大的不确定性和强耦合性。这就难以建立精确的数学模型，使采用固定参数的PID控制器不能与生产上越来越高的控制要求相适应。 本文主要是研究动态矩阵控制算法在主汽温控制方面的应用。首先，分析了当前火电厂主汽温的控制方式和常规的控制方法，以及影响主汽温变化的各种扰动因素；然后，介绍了动态矩阵控制算法的原理，并基于此原理设计了DMC主汽温控制系统；并且与传统的串级PID控制系统进行了比较，仿真结果表明动态矩阵控制算法的响应速度快，且没有超调，鲁棒性好，控制品质明显优于常规PID控制。 关键词：主汽温；动态矩阵控制；DMC；matlab仿真 (Abstract Developing with the tendency to large capacity, high parameters and high efficiency of fossil-fired unit, the control trait request for thermodynamic automatic control systems is heightened .In thermodynamic process, most thermodynamic objects have large inertia and delay, and are nonlinear and time-variable furthermore, some of them are multi-variable, and also has large uncertainty and strong coupling. This makes it difficult to construct accurate mathematic models, and makes PID controllers with fixed parameters hardly adapted to higher and higher control request in production This article is mainly the research of the application of dynamic matrix control in the main temperature control system. First, it analyzed the conventional control method in the current thermoelectric power station steam system, and the affects of every kind of perturbation factor in the main temperature control system. Then it introduced the principle of dynamic matrix control algorithm, and desi)

Subcarrier allocation in mimo-ofdma

Multi-Instance Learning matlab code

Matlab编写的，利用 SA算法解决VRP问题(Matlab prepared using the SA algorithm to solve the VRP)

提示用户输入一个二维数组，然后显示这个数组中最大元素的位置，返回值为包含两个元素的以为数组 (Prompts the user to enter a two-dimensional array, and then display the location of the largest element of the array, the return value is an array that contains two elements)

UWB，超宽带信号分析必用的子函数，第4部分！(UWB, ultra-wideband signal analysis will be used for Functions, Part 4!)

This is a matlab code for using no-overlapping windows of size WxW. It uses ind2sub and sub2ind() built in functions in matlab.

求根MUSIC算法源程序，实现波达方向估计(Root MUSIC algorithm source code, direction of arrival estimation)

Generates a pulse with length Tp ,which is composed of Nc cycles of a sinusoidal waveform sinpulse is the waveform representing the pulse

matlab GUI图形用户界面编程，本例程为一个基于matlab的计算器的源码，实现简单的数值加减运算。(matlab GUI(graphical user interface),this is a programe programed by matlab.It has the basic functon of counting.)