【作者】 杨琳霞；

【导师】 付周兴；

【作者基本信息】 西安科技大学 ， 电力系统及其自动化， 2008， 硕士

【摘要】 有源电力滤波器(APF)是一种用于动态抑制谐波和补偿无功功率的新型电力电子装置,与传统的无源LC滤波器相比较,具有响应快、补偿效果好和能够实现动态补偿的优点,有着非常广阔的发展前景。本文在分析了有源滤波的基本原理的基础上,比较了有源电力滤波器的各种谐波检测方法,并选用基于瞬时无功理论的d-q检测法进行有源电力滤波器的谐波检测;对比分析三角波比较控制策略和滞环比较控制策略的优缺点,提出采用三角波比较法来进行跟踪控制;研究了有源电力滤波器直流侧电容电压的控制方法。论文采用MATLAB软件建立了并联型有源电力滤波器的仿真模型,仿真结果表明,所选用的谐波电流的检测方法和控制策略对非线性负载所产生的谐波及无功电流都起到了较好的补偿作用,具有较好的动态补偿特性。最后在理论和仿真研究基础上,设计了以DSP芯片(TMS320LF2407)作为核心处理芯片和PM15CZF120作为功率单元的有源电力滤波器的系统结构,同时对软件功能进行分析并设计软件及编写软件。更多还原

【Abstract】 Active Power Filter(APF) is an equipment used to dynamically clearing up harmonics and compensating reactive power,APF has a fine prospect. compared with the traditional L-C filters the active poewer filters have the merits in rapid reflect、better compensation and the ability in dynamic compensation.The basic principle of APF are analyzed in this paper.some methods of harmonic measurement are compared , d-q method on the instantaneous reactive theories are choosed to use. the merit and shortcoming of the triangular carry wave control and hysteresis-based current control are analyzed and discussed, the triangular carrier waveform control are choosed.Voltage control method of DC-side are studed.APF was simulated by matlab.The results of the simulation express the methods of harmonics measurement and control strategy choosed have better of compensate function to the harmonics and reactive power caused by the nonline load , and APF have a better dynamic compensation characteristic.Finally at the foundation of the research of the theories and imitation,Active power filter system structure is designed which using the TMS320LF2407 and PM15CZF120. The software function is analyzed , software is designed and wroten in the meantime.更多还原