文档介绍：电力系统谐波抑制的仿真研究
摘要
随着通讯技术的不断发展,作为通讯系统中一种不可缺少的器件-滤波器。滤波器是一种对频率具有选择性的复杂网络,他对某一频率范围内的信号给以很小的衰减,使这部分信号能够顺利通过,对其他频率的信号给以很大的衰减,从而尽可能的阻止这部分信号通过。随着科学技术的发展,滤波器无论是在设计理论,设计方法,制作工艺上都有了很大的进步。
本文对无源电力滤波器的参数设计方法进行了深入的研究。详细分析各种无源电力谐波器结构和工作原理,并在其基础上对影响滤波器性能的有关参数进行了深入分析,重点研究了等值频偏、品质因数、无功补偿容量特性及系统谐波阻抗对单调谐滤波器和高通滤波器性能的影响。以此作为滤波装置设计的理论基础,为工程设计提供了理论准则。
对电力系统无源滤波装置,在常规调谐滤波器的设计思路上,考虑实际滤波器受电网中的负载和自身元件特性的影响,工作在失谐状态下,采取最佳偏调谐设计的方法设计单调谐滤波器。在给定容量时,对全调谐、经验偏调谐、最佳偏调谐设计进行计算,对比结果,得出最佳偏调谐设计所得相对容量较小滤除谐波能力更好的优点。
关键词:无源电力滤波器;谐波抑制;滤波效益;失谐
Power System Simulation of Harmonic Suppression
ABSTRACT
With the development munication technology,as an indispensible device in munication system_filters. The filters is on the frequency selectivity of work of its signal within a frequency range to give a small attention, so that this part of the sognal can be passed to give a lot of attention of the signals of other frequencies, thus as much as possible to prevent the signal from filters. As technology advances, the filters had been made a great progress in the theoretical design ,design methodoligy and production process.
First,this paper analyses the configuration and working principle of ,a thorough analysis is conducted on the factors which are related tothe filter’s characteristics,including the effects of equivalent frequency offset,quality factor,reactive power capacity of the single tuned filter(STF)and highpass filter(HPF),the system equivalent harmonic impedance etc. As thefoundation of designing filter,this step would supply the design principles for ing engineering design methods.
To the electrical power system harmonic suppression, this article profits from the conventional harmonious filter the design mentality, considering the actual filter influenced by the work load and own part characteristic, works under the detune condition, adopts the best harmonious design method to design the signal-tuned filter. When assigns the capacity, carry putation to entire harmonious, the experience ha