基于NICRIO平台的智能变电站电压闪变检测仪设计

摘要随着经济的发展，资源越来越重要，这就要求我们充分的利用资源，于是，智能变电站应运而生。但是智能变电站与传统变电站的二次回路有着明显的区别，传统的闪变检测仪无法应用，这就需要我们设计一个新的闪变检测仪。65003

本文主要介绍了智能变电站的概念，智能变电站与传统变电站二次回路的差异，同时也介绍了闪变的概念以及其算法的分析，并在IEC推荐的平方法检测闪变原理框图的基础上提出了一种新的闪变检测方法。经过仿真验证后，使用LabVIEW编程实现了闪变的检测，实验结果初步证明所开发的闪变检测系统性能指标符合IEC标准规定的精度要求。

毕业论文关键词智能变电站闪变 LabVIEW编程

THE DESIGN OF INTELLIGENT SUBSTATION VOLTAGE FLICKERDETECTOR WHICH BASED ON THE NICRIO PLATFORM

Abstract

With the development of economy, resources are increasingly important. This requires us to make full use of resources, so intelligent substation came into being. But the secondary circuit of intelligent substation has a difference with traditional substation. So traditional flicker detector cannot be applied and this requires us to design a new flicker detector.

This paper describes the concept of intelligent substation, the differences between the secondary circuit of intelligent substation and traditional substation and the concept of flicker and analysis of algorithms. Also in the IEC recommendation even method examination flicker functional block diagram foundation，we put forward to a new flicker examination method. After the simulating confirmation, the use of LabVIEW programming realized the detection of flicker, the experimental result preliminary proves developed flicker the examination system performance indexes conforms to the challenge of IEC accuracy Standard.

Keywords intelligent substation flicker LabVIEW programming

1 引言 5

1.1 课题研究的目的与意义 5

1.2 智能电网研究现状 6

1.3 电压波动与闪变的研究现状 7

1.3.1 电压波动与闪变的检测方法研究 7

1.3.2 电压波动与闪变的检测仪器 9

1.3.3 电压波动与闪变标准 9

1.4 本文的主要研究内容 10

2 电压波动与闪变的定义和基本概念 11

2.1 电压波动 11

2.2 闪变特征值 12

2.2.1 闪变觉察率F 12

2.2.2 瞬时闪变视感度S(t) 13

2.2.3 视感度系数K(f) 13

2.2.4 波形因数R(f) 14

2.2.5 灯一眼一脑环节的传递函数 14

2.2.6 短时间闪变值Pst 15

2.3 本章小结 15

3 电压波动与闪变的检测方法 15

3.1 电压波动数学模型 15

3.2 检测方法分析 16

3.2.1 平方检测法 16

3.2.2 有效值检测法基于NICRIO平台的智能变电站电压闪变检测仪设计:http://www.751com.cn/zidonghua/lunwen_72450.html