文档介绍：X X X X大学
毕业设计说明书
作者: XXXXX 学号: XXXXXXX
学院: XXXXXXX工程学院
系(专业): XXXXXX
题目:电力有源滤波器的谐波电流检测方法的研究
指导者:
评阅者:
201X年 XX月 XX日
毕业设计(论文)中文摘要
电力有源电力滤波器的谐波电流检测方法的研究
摘要:
近年来,随着现代工业的不断发展,配电网中的整流器、电弧炉等以及各种电力电子设备的不断增加。这些负荷的非线性、冲击性和不平衡性等特性,造成严重的供电污染,影响质量。飞速发展的社会早已不仅仅满足于足够的电力供应,而是需要更高质量的电力供应。对谐波的抑制首当其冲成为关键因素,抑制谐波的方法主要有无源滤波技术和电力有源滤波器技术。电力有源滤波器(APF)拥有能够动态补偿、受到的电网阻抗影响小等优点,逐渐成为谐波抑制技术的主要研究方向。能否准确、实时地检测出电网中瞬态变化的畸变电流,是电力有源滤波器能否进行准确补偿的关键。谐波电流的检测方法有很多种,本文主要研究的是改进后的基于瞬时无功功率理论的三相电路谐波电流检测方法,亦称为ip-iq法,其核心思想是根据所定义的瞬时功率的波动部分为谐波电流和系统电压作用的结果这一特点来提取谐波分量。本文先以理论分析,并用MATLAB中的Simulink进行了仿真实验,进行验证。
关键词: 电力有源滤波器瞬时无功功率 p-q法 Simulink
毕业设计(论文)外文摘要
Title Active Power Filter Harmonic Current Detection Method
Abstract
In recent years, with the continuous development of modern industry, a variety of electrical and electronic equipment continues to increase. The above nonlinear load affecting the quality heavily. The rapid development of society has long been not just satisfied with the electricity supply, but need a new and higher quality power supply. Harmonic suppression methods are mainly passive filtering techniques and active power filter technology. Active power filter technology, with pensation by the grid impedance affect pared with the passive filter, has gradually e the main research directions for harmonic suppression. Whether accurate, real-time detection of transient changes in the grid distortion current, active power pensation ability to accurately key. This paper studies the harmonic current detection method based on instantaneous reactive power theory of three-phase circuit, also known as ip-iq method, the core idea is based on the definition of instantaneous power fluctuations of the harmonic current and system voltage is applied to the results this feature to extract the ponent. Use MATLAB Simulink simulation experiments to verify.
Keywords:Active Power Filter, Instantaneous Reactive Power, ip-iq method,
Simulink
目录
1 引言………………………………………………………………………… 1
2 谐波问题………………………………