一种基于复合控制的通用型有源电力滤波器

发布时间：2018-01-07 17:30

本文关键词：一种基于复合控制的通用型有源电力滤波器　出处：《电工电能新技术》2016年02期 　论文类型：期刊论文

【摘要】：为了同时适合电压型谐波源和电流型谐波源的滤波,同时具有传统有源滤波器的并联型结构,本文提出一种基于复合控制的通用型有源电力滤波器,其基本原理为:检测系统的谐波电流和谐波源两端的基波电压,将这两个信号进行放大和组合后作为参考信号,通过电力电子逆变器产生一个电压源,将该电压源与一个带有较小阻抗值的联接电抗相串联后并联在谐波源和电力系统两端。理论分析表明该有源电力滤波器对基波进行动态无功补偿,对谐波相当于串联一个谐波高阻抗和并联一个谐波低阻抗,兼具疏导和隔离谐波的作用,从而构成一种高性价比的有源电力滤波器。该滤波器结构简单,保护方便,滤波效果好,逆变器容量小,适合于两种类型的谐波源。实验结果证明了该原理的有效性。
[Abstract]:At the same time in order to suitable for voltage type and current type harmonic sources of the filter, and has parallel structure of the traditional active filter, this paper presents a general type of active power filter based on composite control, the basic principle is: the fundamental voltage harmonic current and harmonic source detection system, the two signal amplification and the combination is used as the reference signal, generates a voltage source through the power electronic inverter, the voltage source and with a smaller impedance coupling reactance connected in series are connected in parallel with both ends of harmonic sources and power system. The theoretical analysis shows that the active power filter on the fundamental dynamic reactive power compensation, harmonic equivalent to a series of a high harmonic impedance and harmonic parallel with a low impedance, with ease and isolation of harmonic function, so as to form an active power filter with high performance. The filter The structure is simple, the protection is convenient, the filtering effect is good, the inverter has small capacity, and it is suitable for the two types of harmonic source. The experimental results prove the validity of the principle.

【作者单位】：深圳市今朝时代新能源技术有限公司;强电磁工程与新技术国家重点实验室华中科技大学;
【基金】：国家自然科学基金资助项目(51477060;51277081)
【分类号】：TM761;TN713.8
【正文快照】： 1引言近年来,电力系统中使用了很多电力电子变换装置和非线性负载,这些装置对电网电能质量造成了严重危害[1-7]。绿色电力电子装置和单位功率因数始终是电力用户关注的焦点问题。在各类谐波源中电力电子变换装置产生的谐波比例最高,电力电子类谐波源根据其工作原理和特性分为

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