文档介绍：电能质量分析
浙江大学
宁波理工学院
题 目
项目成员 黄敏瑶
专业班级 电气102
指导教师
分 院
完成日期
电能质量综合评估
摘要
随着经济的快速发展，电网中非线性负荷用户的比例不断提高，由此 而产生的电能质量问题，表现得越来越突出。本文在介绍电能质量综合评 估的定义、必要性及目的的基础上提出了几种常用的电能质量评估方法。 本文利用概率和矢量代数相结合的方法，通过实例分析后得出：首先，这种 方法能够较好地反映运城市电能质量的实际情况。其次，该方法评估过程 简单易懂，能够较好地和所学理论进行有机结合。本文在介绍电能质量的 基本知识的基础上，针对影响电能质量因素进行了 MATLAB仿真处理。目 前,我国实施竞价上网，按质定价、优质优价的原则。这将是电能质量综合 评估问题研究与开发的方向。电能质量评估对认识电力系统电能质量有重 要意义，从而对改善电能质量有指导意义。
关键词：电能质量 概率和矢量代数 综合评估
Comprehensive Evaluation of Power Quality
Abstract
With the rapid development of economy, the proportion of nonlinear load users are increasing, and the power quality problems produced by it are becoming more and more outstanding. The paper put forward several common power quality assessment method based on the introduction of power quality evaluation of definition, necessity and purpose. This thesis method can better reflect the power quality of Yun Cheng. Secondly, the evaluation process of this method is simple and understandable, and can combine the theory we have already studied very well. The paper using the MATLAB software processed the factors Influences power quality based on the introduction of the power quality. At present, the principle in our country is bidding for access, pricing by quality, high quality and price, and this will be the direction of power quality assessment questions research and development. And it has important meaning to know power quality in power system. So as to improve the quality of power.
Key words: Power quality; Probability and vector algebra; Comprehensive evaluation
目录
6
6
7
7
值 7
分 8
8
差 8
动 9
变 10
差 11
波 11
度 12
标 13
电能质量问题的产生 13
如何改善电能质量 13
第3章 电能质量综合评估 14
、必要性及目的 14
义 14
的 14
15
法 15
法