导　　师： 张志文

学科专业： 080801

授予学位： 硕士

作　　者： ;

机构地区： 湖南大学

摘　　要： 本文首先介绍了谐波的概念和谐波的危害，阐述了谐波问题研究的必要性和紧迫性，并对谐波抑制的方法作了简单的介绍。并在此基础上，通过对有源滤波器和无源滤波器各自的优缺点以及有源—无源混合滤波器装置的结构、原理的分析，提出了一种采用有源和无源相结合的基于双DSP控制器的有源—无源混合滤波器装置的设计方案。 同时综合讨论了有源—无源混合滤波器装置的基本原理及其主体构成，重点研究了系统的无功和谐波补偿的相关问题，并对混合滤波器装置的结构参数进行了设计。为满足电网电压畸变、不对称的应用要求，在对比常见的谐波补偿策略后，本文重点研究了一种基于a-b-c坐标系下的补偿新策略。在分析三相三线电压型有源滤波器拓扑结构的基础上，本文提出了基于无差拍控制法的三相电流综合误差最小的开关控制策略，实现了三相电流的关联控制。 最后本文设计了基于TMS320LF2407和TMS320VC33双DSP结构的全数字化控制平台，完成了部分系统主电路和控制电路的设计。并利用MATLAB／SIMULINK仿真软件对主电路进行了仿真研究，用搭建的实验平台对提出的控制策略进行实验验证。仿真实验的结果表明由无源滤波器和有源滤波器混合构成的混合滤波器具有优良的滤波性能，在滤波效果上大大优于单独使用的无源滤波器同时在应用范围和造价上又优于单独使用的有源滤波器，是一种值得推广的滤波方式。 The paper introduces the concept of harmonics and the harm of harmonics,and demonstrates the necessity of harnessing harnonics,and briefly introduce several methods of harnessing harnonics. With this understanding, The paper introduces the advantages and disadvantages of passive power filter and active power filter and analyzes the principle and structure of APF-PF hybrid filter equipment. A novel design of APF-PF hybrid filter equipment based on two DSPs is proposed. The principle and main-structure of the APF-PF hybrid filter equipment is discussed, focusing on the correlated problems of reactive power and harmonic compensation. In corresponding to the asymmetrical and distorted source voltage, a new compenstation strategy based on a-b-c reference frame is proposed througth the comparing with several normal compensation methods of harmonics. The topology of the 3-phase 3-wire voltage-type active power filter is analyzed, and a novel control strategy is developed, which can realize correlation control and minimize the composite error of source current at the same time. A full digital control system based on DSPs is built with TMS320LF2407 and TMS320VC33. Some parts of main circuits and control circuits have been designed. The main circuit emulations have been done with SIMULATE, and the experiment system is constructing to verify the feasibility of the control strategy.

关 键 词： 谐波 混合滤波器装置 补偿新策略

领　　域： [电子电信]