基于APF与SVC无功补偿与谐波抑制的研究

发布时间：2018-03-19 02:33

本文选题：有源电力滤波器APF　切入点：静止无功补偿器SVC　出处：《安徽理工大学》2017年硕士论文　论文类型：学位论文

【摘要】：当今社会,随着工业生产水平的发展,产生了很多电能质量问题,其中,影响电能质量最重要的两个即为谐波污染和无功功率的消耗。电力电子作为最大的谐波源,在其运行时产生大量的谐波,污染电力系统环境,并且也会损耗无功功率,降低系统的功率因数,影响电能质量。面对谐波治理最主要的措施是在电源侧装设APF,而静止无功补偿器SVC是补偿无功的重要装置。本论文主要将二者综合在一起进行研究,使其在谐波抑制的同时也能进行无功补偿,极大地发挥两个装置的优点,同时也能相互弥补各自的不足,有效地提高电能质量。本论文首先对无功功率和谐波的研究现状作了简单的阐述,就此提出了 APF与SVC综合补偿方案,并对其背景作了简要概述。接着,论文对有源电力滤波器进行阐述。随后着重论述了谐波电流检测技术对APF的重要性,通过对p、q和ip、iq运算方式的介绍,搭建仿真模型,通过波形图的对比分析可得,ip、iq运算方式的结果更加精确。此外,还简述了 APF的几种控制方法,通过对三角波比较方式的仿真,验证了其方法的有效性,故本论文选择了三角波比较控制。然后,通过对静止无功补偿器SVC的介绍(本文主要选择TCR型),论述了TCR的工作原理与连接方式,并且利用MATLAB仿真技术搭建了单相TCR与三相TCR仿真图,通过对二者的对比分析可得,三相TCR的无功补偿效果最好。最后,将有源滤波器APF与静止无功补偿器SVC综合在一起,搭建拓扑图,并用仿真技术,搭建仿真图,由所得到的波形图可得APF与SVC能够迅速得进行无功补偿与谐波抑制,并且综合方案更高效稳定,验证了 APF与SVC综合补偿方案的高效性。
[Abstract]:Nowadays, with the development of industrial production level, there are many power quality problems. Among them, the two most important factors affecting power quality are harmonic pollution and reactive power consumption. Power electronics is the largest harmonic source. It produces a lot of harmonics, pollutes the environment of the power system, and also loses the reactive power and reduces the power factor of the system. The most important measure for harmonic control is to install APFs on the power side, and the static Var compensator (SVC) is an important device for compensating reactive power. It can compensate reactive power while suppressing harmonics, greatly exerting the advantages of the two devices, and making up for each other's shortcomings at the same time. In this paper, the current research status of reactive power and harmonic is briefly described, and a comprehensive compensation scheme of APF and SVC is proposed, and its background is summarized briefly. In this paper, the active power filter is described, and the importance of harmonic current detection technology to APF is emphasized. The simulation model is built by introducing the operation methods of PQ and IPQ. In addition, several control methods of APF are briefly described, and the effectiveness of the method is verified by the simulation of triangular wave comparison. Therefore, this paper chooses triangle wave comparison control. Then, through the introduction of static Var compensator (SVC), the principle and connection of TCR are discussed. The simulation diagram of single-phase TCR and three-phase TCR is built by using MATLAB simulation technology. Through the comparison and analysis of the two, the reactive power compensation effect of three-phase TCR is the best. Finally, the active power filter APF is integrated with the static Var compensator SVC. Build topology diagram, and use simulation technology, build simulation diagram, from the obtained waveform diagram can be obtained APF and SVC can quickly carry out reactive power compensation and harmonic suppression, and the comprehensive scheme is more efficient and stable, The efficiency of the comprehensive compensation scheme of APF and SVC is verified.
【学位授予单位】：安徽理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM761.12

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