有源电力滤波器滑模控制策略研究

发布时间：2018-01-03 21:43

本文关键词：有源电力滤波器滑模控制策略研究　出处：《合肥工业大学》2015年硕士论文　论文类型：学位论文

【摘要】：随着电力电子技术的飞速发展,大量非线性设备投入到工业应用领域,由此带来的谐波污染问题也越来越严重。现代社会对电能质量的要求越来越高,传统无源滤波器已经无法满足要求,有源电力滤波器便应运而生。它被公认为是抑制谐波和补偿无功功率最好的手段,有着很大的应用前景。本文首先对谐波的基本概念、来源、国内外相关标准以及治理措施做了简要的介绍,之后阐述了有源电力滤波器的研究背景及发展现状,并对其不同的拓扑结构和基本原理作了详细的说明；其次介绍了有源电力滤波器的各种控制策略、各种谐波检测算法,并对他们进行对比分析。滑模控制诞生于上个世纪50年代,经过半个多世纪的发展,其理论已比较完善,而其在工业领域的应用则相对较少,在有源电力滤波器中的应用就更少。本文对滑模控制的发展历史、基本原理以及控制方法做了详细的说明,并对抖振的产生与抑制方法做了简要的介绍。在前人研究的基础之上,将滑模控制运用到了有源电力滤波器中去,主要针对单相和三相四线制两种类型。在单相有源电力滤波器中,提出了两种滑模控制策略,并对其原理、控制过程做了详细说明,就两种策略作了对比分析,给出了其—致性与差异性；在三相四线制有源电力滤波器中,将其与三维空间矢量相结合,利用dq坐标系的相位角与等效控制得出矢量的选择规则,并取得了良好的控制效果。最后,在MATLAB/SIMULINK环境下对上述控制策略进行仿真研究,对其稳态性能和动态性能做了分析,并将其与传统控制策略作比较,仿真结果证明了本文所提策略的有效性与优越性。
[Abstract]:With the rapid development of power electronics, a large number of nonlinear devices into industrial applications, the problem of harmonic pollution has brought more and more serious. In modern society, the higher the quality of the electric power and the traditional passive filter has been unable to meet the requirements of the active power filter has come into being. It is known to suppress the harmonic and compensating the best means of reactive power, has a great application prospect. Firstly, the basic concepts of harmonic sources, the domestic and foreign standards and control measures are briefly introduced, then expounds the research background and current development of active power filter, the topological structure and the basic principle and the different detail the description; secondly introduces the various control strategies of active power filter, harmonic detection algorithm, and they were compared. Born on the sliding mode control In 50s, after more than half a century of development, its theory has been perfected, and its applications in the industrial field is relatively small, its application in active power filter is less. The development history of sliding mode control, the basic principle and control method in detail, and the chattering produced a brief introduction and suppression method. On the basis of previous studies, the sliding mode control is applied to active power filter, mainly for single-phase and three-phase four wire two types. In single-phase active power filter, puts forward two kinds of sliding mode control strategy and the control process of the principle. In detail, made a comparative analysis of two kinds of strategies, given its consistency with the difference; in the three-phase four wire active power filter, combined with the three-dimensional space vector phase, phase by using the dq coordinate system and angle etc. The selection rules of vector control, and achieved good control effect. Finally, in the MATLAB/SIMULINK environment, the simulation research on the control strategy of the steady-state performance and dynamic performance are analyzed, and compared with the traditional control strategies, the simulation results prove the effectiveness and superiority of the strategy.

【学位授予单位】：合肥工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TM761;TN713.8

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