毕业设计说明书中文摘要随着电力电子技术的高速发展，各类非线性负荷比例逐渐增大，现代电网的规模日益增大，分布式发电发展对电能质量(Power Quality)的要求也越来越高。本课题就是基于此背景，设计一套实时监测分布式电源电能质量的软件。此软件从下位机接收数据，并实时显示电压电流等信息。82796

论文首先介绍了现代电力系统对电能质量的要求，以及这些要求的意义，并阐述了此课题的研究背景。其次对电能质量进行了概述，给出了电能质量的具体定义，并给出了衡量电能质量的具体参数，列举了国内外对电能质量的研究情况。并具体介绍了电能质量的监测要求及评估方法。

最后介绍了整个系统的结构组成以及编程环境，介绍了电能监测软件的功能模块，展示了上位机界面以及电能质量监测情况，并简单介绍了下位机的功能及其通信规约。

毕业论文关键词 电能质量；衡量参数；监测软件；分布式电源；软件调试

毕业设计说明书外文摘要

Title   Design of a distributed power quality online monitoring system     

Abstract  With the rapid development of power electronic technology, different kinds of nonlinear loads proportion increases gradually, increasing the scale of the modern power grid, power supply enterprises and users of electricity has strengthened on electric energy quality problems (power quality) understanding。 This paper is based on this background, making a real-time monitoring of power quality software。 This software is from the lower position machine receive data, and real-time display of voltage and current information。

   Firstly, the paper introduces the requirements of modern power system of power quality, and these requirements of significance, and elaborated the research background of this topic。 Secondly on the electrical energy quality are outlined, gives the power quality of the specific definition and gives the measure of power quality specific parameters, enumerated at home and abroad on the electrical to quality research。 And the specific details of the electric energy quality monitoring and assessment methods。

    At last, the paper introduces the whole system structure, and programming environment, introduces the power monitoring software function module, display the PC interface and power quality monitoring, and a brief introduction of the lower position machine function and communication protocol。

Keywords  Power quality；Measuring parameters；Monitoring software；distributed power quality；Software debugging

目   次

1  引言 1

1。1电力系统概述 1

1。2现代电力系统对电能质量的基本要求 1

1。3 分布式发电对电能质量的影响 2

1。4课题的背景与意义 2

1。5电能质量研究进展 2

1。5。1 国外电能质量研究的进展 2

1。5。2 国内电能质量研究的进展 3

1。6 本文研究内容及章节安排 4

2  电能质量概述 5

2。1电能质量的定义 5

2。2 分布式电能质量的基本参数 5

2。3 电能质量监测概况