美赛数学建模专用-第七章 Simulink 基础

美赛数学建模专用-

第七章Simulink 基础

Chapter 7: Introduction to Simulink

一．Simulink 初步(Primer of Simulink)

MATLAB Simulink是一个动态仿真系统，用于对动态系统进行仿真和分析，预先模拟实际系统的特性和响应，根据设计和使用要求，对系统进行修改和优化。

Simulink提供了图形化用户界面，只须点击鼠标就可以轻易的完成模型的创建、调试和仿真工作，用户不须专门掌握一种程序设计语言。

Simulink可将系统分为从高级到低级的几个层次，每层又可以细分为几个部分，每层系统构建完成后，将各层连接起来构成一个完整系统。

模型创建完成后，可以启动系统的仿真功能分析系统的动态特性，其内置的分析工具包括各种仿真算法、系统线性化、寻求平衡点等。仿真结果可以以图形方式在示波器窗口显示，也可将输出结果以变量形式保存起来，并输入到MATLAB中以完成进一步的分析。

Simulink可以仿真线性和非线性系统，并能创建连续时间、离散时间或二者混合的系统。支持多采样频率系统。

Simulink

Version 6.0 (R14) 05-May-2004

Model analysis and construction functions.

Simulation

sim - Simulate a Simulink model.

sldebug - Debug a Simulink model.

simset - Define options to SIM Options structure.

simget - Get SIM Options structure

Linearization and trimming.

linmod - Extract linear model from continuous-time system.

linmod2 - Extract linear model, advanced method.

dlinmod - Extract linear model from discrete-time

system.

trim - Find steady-state operating point.

Model Construction.

close_system - Close open model or block.

new_system - Create new empty model window.

open_system - Open existing model or block.

load_system - Load existing model without making model visible.

save_system - Save an open model.

add_block - Add new block.

add_line - Add new line.

delete_block - Remove block.

delete_line - Remove line.

find_system - Search a model.

hilite_system - Hilite objects within a model.

replace_block - Replace existing blocks with a new block.

set_param - Set parameter values for model or block.

get_param - Get simulation parameter values from model.

add_param - Add a user-defined string parameter to a model.

delete_param - Delete a user-defined parameter from a model.

bdclose - Close a Simulink window.

bdroot - Root level model name.

gcb - Get the name of the current block.

gcbh - Get the handle of the current block.

gcs - Get the name of the current system.

getfullname - get the full path name of a block

slupdate - Update older 1.x models to 3.x.

addterms - Add terminators to unconnected ports.

boolean - Convert numeric array to boolean.

slhelp - Simulink user's guide or block help.

Masking.

hasmask - Check for mask.

hasmaskdlg - Check for mask dialog.

hasmaskicon - Check for mask icon.

iconedit - Design block icons using ginput function.

maskpopups - Return and change masked block's popup menu items.

movemask - Restructure masked built-in blocks as masked subsystems.

Library.

libinfo - Get library information for a system.

Diagnostics.

sllastdiagnostic - Last diagnostic array.

sllasterror - Last error array.

sllastwarning - Last warning array.

sldiagnostics - Get block count and compile stats for a model.

Hardcopy and printing.

frameedit - Edit print frames for annotated model printouts.

print - Print graph or Simulink system; or save graph to M-file.

printopt - Printer defaults.

orient - Set paper orientation.

simulink is both a directory and a function.

Copyright 1990-2004 The MathWorks, Inc.