有源滤波器对变流器谐波补偿的研究与仿真

发布时间：2018-01-15 04:11

本文关键词：有源滤波器对变流器谐波补偿的研究与仿真　出处：《浙江工业大学》2015年硕士论文　论文类型：学位论文

【摘要】：随着现代工业技术的发展,医疗船中大量非线性电力电子设备被广泛使用。虽然提高了生产效率,但同时大量谐波分量注入电网,对电力系统造成极大的损害。因此,谐波治理在当前具有重要的现实意义。其中,应用有源电力滤波器(Active Power Filter,APF)是一种非常有效的方法。然而,目前有源电力滤波器的研究主要还是集中在三相电力系统上,单相系统方面的研究不够成熟且单相设备应用越来越多,单相有源电力滤波器的研究具有重要的意义。本文针对医疗船电网的单相并联型有源电力滤波器进行深入研究,并搭建了容量为10KVA/220V的实验平台,通过实验和仿真说明其良好的滤波效果。本文的主要工作如下:文章开篇概述了谐波的定义、危害及治理手段,简述了单相有源电力滤波器的研究意义及现状,阐述了有源滤波器的基本结构和基本原理。论文详细研究了单相有源电力滤波器的两个重要部分:谐波及无功电流检测电路和补偿电流控制电路。检测电路方面,本文研究分析了基于瞬时无功功率理论的单相检测方法和基于傅立叶级数的单相检测方法。通过比较各自的优缺点,选择了结构更加简单、实时性更好的后者。在补偿电流控制电路方面,本文选用了满足控制要求且更为简单的三角波控制策略。同时,本文还分析了空间矢量控制方式,这是一种精度更高,效果更好的控制方式。论文对单相有源电力滤波器进行实验设计,并利用仿真工具MATLAB/Simulink对各部分实现建模和仿真研究。从实验和仿真结果可以看出,基于傅立叶级数的检测方法能精确的检测出谐波指令,表明了本文理论分析的正确性和可行性。
[Abstract]:With the development of modern industrial technology, a large number of non-linear power electronic medical equipment has been widely used. Although the increased production efficiency, but also a large number of harmonics into the power grid, causing great damage to the power system. Therefore, the harmonic control has important practical significance in the current. The application of active power filter (Active Power Filter. APF) is a very effective method. However, the current research on active power filter is mainly concentrated in the three-phase power system, research system is not mature enough and single-phase single-phase equipment should be used more and more, it is very important to study the single-phase active power filter. Based on the in-depth study of the medical ship power grid single-phase shunt active power filter, and build the capacity of the 10KVA/220V experimental platform, through experiment and simulation show its good filtering effect. The main work of this paper is as follows: the article begins with an overview of the harmonic definition, harm and treatment methods, research significance and status quo of the single-phase active power filter, this paper describes the basic structure and basic principle of APF. This paper studies two important parts of single-phase active power filter, harmonic and reactive current detection circuit and compensation current control circuit. The detection circuit, this paper analyzes the single phase detection method based on instantaneous reactive power theory based on phase detection method and Fu Liye series. By comparing their advantages and disadvantages, choose a more simple structure, better real-time. The control circuit in the compensation current, we choose to meet triangular wave control requirements and more simple control strategy. At the same time, this paper also analyzes the space vector control method, which is a higher precision, better effect The way of control. The experimental design of the single-phase active power filter, and using MATLAB/Simulink simulation tool for modeling and Simulation of each part. From the experimental and simulation results show that the detection method of Fu Liye series can accurately detect the harmonic order based on show the correctness and feasibility of the theoretical analysis.

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

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