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matlab
此程序用数值分析方法绘制浅结晶体管的稳态热场分布图,一个基区上并连五个发射极条,热流密度近似为发射极条单位面积上的功耗,热沉温度恒定(Numerical analysis of this program for drawing shallow junction transistor static temperature distribution, on a base region and emitter with five articles, similar to the emitter heat flux per unit area on the power section, a constant heat sink temperature)
- 2010-07-17 13:39:49下载
- 积分:1
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galerkin8_5_1
Galerkin方法,这是一种真正的无网格方法.这种方法采用移动最小二乘函数采近似解变量,并且采用移动最小二乘近似函数的权函数作为加权残值法的权函数.文中对形成的离散动力学方程用Newmark方法求解(Galerkin method, this is a real meshless method. This method adopts moving least squares in function approximation solution variables, and adopts moving least squares approximate function of weight function as a weighted residual method of weight function. In the paper, the discrete dynamic equation formed with Newmark method to solve)
- 2012-03-26 18:56:14下载
- 积分:1
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EigenFace
the code of eigenface
- 2012-01-05 11:05:45下载
- 积分:1
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power
在simulink的环境下的电机功率的研究仿真模型,并有良好的效果(In simulink environment of motor power, a simulation model of research and has a good effect)
- 2013-12-12 14:59:04下载
- 积分:1
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rake-receiver
Rake receiver in uwb 802.15.3a
- 2014-02-10 23:10:37下载
- 积分:1
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DMC-sheji
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)
- 2010-06-05 22:56:57下载
- 积分:1
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Matlab
说明: 《MatLab工具箱应用指南:控制工程篇》;电子工业出版社出版("MatLab toolbox Application Guide: Control Engineering articles" Electronics Industry Publishing House)
- 2010-03-20 10:07:43下载
- 积分:1
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EMWAVE
对电磁波三维传播的仿真,包括在自由空间的传播和FDTD算法的有界空间传播(Three-dimensional simulation of electromagnetic wave propagation, including propagation in free space bounded space propagation and FDTD algorithm)
- 2013-11-24 11:26:13下载
- 积分:1
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Transmissionlinerelayingusingmachineintellegencet
Soure for fault classification using machine intelligence technique
- 2009-11-06 15:33:11下载
- 积分:1
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segmentation
This is a program for extracting objects from an image. Written for vehicle number plate segmentation and extraction.
Authors : Jeny Rajan, Chandrashekar P S.
U can use attached test image for testing
input - give the image file name as input. eg :- car3.jpg(This is a program for extracting objects from an image. Written for vehicle number plate segmentation and extraction.
Authors : Jeny Rajan, Chandrashekar P S.
U can use attached test image for testing
input- give the image file name as input. eg :- car3.jpg)
- 2009-10-21 00:37:14下载
- 积分:1