三相同步发电机运行仿真与GUI设计 - 图文

摘要

三相同步发电机运行仿真与GUI设计

摘要

同步发电机是电力系统的能量提供者，它的控制性能的好坏将直接决定电力系统的安全与稳定运行状况。所以检测同步发电机的运行状态具有重要意义。

首先了解同步发电机的基本概述，国内外发电机的发展现状及趋势，同步发电机的运行原理、数学模型及主要的工作特性。然后介绍三相同步发电机的运行原理，并就其对称运行与不对称运行进行分析。应用M文件或者Simulink对电机的运行状态建立模型，得到相应的仿真图形。运用GUI工具制作一个“电机仿真试验系统”界面，通过登陆界面之后，进入统一的用户交互界面，来选择电机类型、实验项目，并借助MATLAB的支持，进行试验仿真。

本文对仿真的实例进行分析，证明了此种方法的可行性，所得到的仿真结果符合电机的运行状态。

关键词：同步发电机；运行状态；数学模型；对称；不对称；GUI；电机仿真。

I

Abstract

Three-phase synchronous generator running simulation

and GUI design

ABSTRACT

Synchronous generators in power systems energy provider, control performance is good or bad it will directly determine the power system security and stability of operating conditions. Therefore, the operation status of detecting synchronous generator is important.

First of all know the basic outline synchronous generator, the development situation of domestic and foreign generator and trend, operating principle of the synchronous generator, mathematical model and the main work characteristics. Then introduces the operation principle of three-phase synchronous generator，and to the symmetric and asymmetric operation to run the analysis. Applications of M files or Simulink to model the motor running, get the corresponding simulation graphics. Using GUI tool to make an \simulation test systems\interface, through after landing interface, entering unity of user interface, to choose the motor type, experiment project, using MATLAB support , test simulation.

This paper analyzes the simulation of the examples, proved the feasibility of this method, the simulation results with meet running state of the motor.

Keyword: Synchronous generator；operation status；mathematical model；Symmetric；

asymmetric；GUI；Motor simulation。

II

目录

目录

摘要............................................................................................. Ⅰ ABSTRACT .................................................................................. Ⅱ 第一章 绪论................................................................................. 1 1.1 引言 ......................................................................................................... 1 1.2 同步发电机概述....................................................................................... 1 1.2.1同步发电机在发电厂中的必要性 ....................................................... 1 1.2.2同步发电机结构和分类 ...................................................................... 1 1.2.3 同步发电机的运行方式 ...................................................................... 2 1.3 国内外中小型发电机发展状况 ................................................................ 3 1.3.1 国外中小型发电机现状 ..................................................................... 3 1.3.2 国内中小型电机现状 ......................................................................... 3 1.3.3 中小型同步发电机行业的技术发展展望 ........................................... 4 1.4本论文的主要内容 ................................................................................... 4 第二章 三相同步发电机的基本原理..................................................... 5 2.1 三相同步电机的运行原理........................................................................ 5 2.1.1 同步电机的数学模型 ......................................................................... 5 2.1.2 工作特性 ............................................................................................ 6 2.2 同步发电机的对称运行 ........................................................................... 7 2.3同步发电机的不对称运行 ........................................................................ 8 2.3.1 概述 ................................................................................................... 8

目录

2.3.2 同步发电机的不对称分析实例 .......................................................... 9 第三章 三相同步发电机仿真应用方法 .............................................. 12 3.1 MATLAB的应用....................................................................................... 12 3.1.1 GUI设计 ........................................................................................ 12 3.1.2 Simulink的建模 ............................................................................. 13 3.2同步电机坐标系统的选择 ...................................................................... 13 3.2.1 dq0坐标 ......................................................................................... 13 3.2.2

dq?0坐标 ....................................................................................... 15

第四章 设计思路 .......................................................................... 16 4.1 设计思路与框图..................................................................................... 16 4.2 构建过程及具体步骤 ............................................................................. 17 第五章 实例仿真分析 .................................................................. 26 5.1 同步发电机仿真实例 ............................................................................. 26 5.1.1三相突然短路 ................................................................................... 26 5.1.2负载两相短路 ................................................................................... 29 5.2 异步电机仿真实例 ................................................................................. 31 5.3 直流电机仿真实例 ................................................................................. 33 第六章 总结 ................................................................................ 35 6.1 具体工作 ................................................................................................ 35 6.2 存在不足 ................................................................................................ 36

目录

参考文献 ...................................................................................... 37 致谢............................................................................................. 38 附录 A 英文翻译 ......................................................................... 39 附录 B 中文翻译 ......................................................................... 47 附录 C 附录 D 附录 E 附录 F 登陆界面程序 ................................................................... 53 主界面程序 ...................................................................... 56 仿真界面程序 ................................................................... 61 运行特性程序 ................................................................... 65