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变电站自动化系统线路单元测控装置研究

A Linking Study on a Line Measurement-control Device in Transformer Substation Automatic System

【作者】 黄冰;

【导师】 杨小健;

【作者基本信息】 南京工业大学 , 控制理论与控制工程, 2002, 硕士

【摘要】 随着我国电网容量的不断增加,运行管理变得更加复杂。为了保证供电的质量和电力系统的可靠性和经济性,系统的调度中心必须及时而准确地掌握整个系统的运行情况,随时进行分析,作出正确的判断和决策,必要时采取相应的措施,及时处理事故和异常情况,以保证电力系统安全、经济、可靠地运行。要实现电网调度自动化,首先需要采集和处理大量实时运行参数和状态信号。本文讨论的线路单元测控装置是变电站综合自动化系统间隔层的核心装置,在变电站综合自动化系统中肩负着测量与控制的任务,它的功能的实现对变电站有着重要的意义。线路测控装置是一个基于16位单片机的应用系统,它的主要功能的软件开发是关键。本文采用的面向部件的分析与设计建模方法是根据现代软件工程学的观点,在软件开发实践中研究和总结出来的一套图形描述工具,可以作为一种较为通用的软件开发方法,并综合运用其它有关的软件工程技术,线路测控装置的软件系统分析与设计技术得到了全面的研究和讨论。在线路测控装置主要功能的软件开发过程中,主要的应用程序设计、用户界面显示等研究得到了论述。同时对模拟量的采集与处理以及一些交流采样的算法进行了研究;主要就快速傅里叶变换算法、全波傅氏算法以及有功功率、无功功率的计算、滤波的参数选取、谐波的计算进行了讨论。

【Abstract】 With the capability of electrical system increasing, the former device can not yet satisfy what the dispatching automation asks for the remote terminal unit on reliability, rapidity and accuracy. The new measurement and control device, which undertakes the task of measurement and control, is one kernel part in the bay of substation automation system. Based on microcontroller application system, It’s initial and essential to develop its fundamental software functions. The Component Oriented Analysis and Design Modeling Method is developed into a diagram solution tool in the course of the software development practice ,which supports the component oriented software development process,and can be used as a general software development method.By using the Component Oriented Analysis and Design Modeling Method and related software engineering techniques, the software system analysis and design techniques for the device are researched . In addition, the main applied programming techniques and user interfaces display are discussed. Furthermore, sampling and processing of AC , including some AC sampling algorithms , are reached. Mainly, FFT algorithm and full-wave Fourier algorithm are discussed. Calculation of active power and imaginary power is researched. Parameter selection of filtration and calculation of are attained.

  • 【分类号】TM76
  • 【下载频次】226
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