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首页> 外文会议>2014 International Conference on Science Engineering and Management Research >Assorted hybrid filter topology for harmonic compensation in front end system
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Assorted hybrid filter topology for harmonic compensation in front end system

机译：用于前端系统谐波补偿的各种混合滤波器拓扑

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摘要

An Assorted topology of hybrid filter in front end system compensates the reactive power and current harmonics. In this study, a various topology of hybrid filter (SSHF) is analyzed in the point of harmonic reduction, power factor and voltage stress in active filter. Three configuration of hybrid filter is taken for the analysis to mitigate harmonics and reactive power. Shunt hybrid filter, series hybrid filter and shunt- series hybrid filter are the different topology of hybrid filter. The combination of active and passive components forms the hybrid filter where the active filter is controlled by adaptive controller. The least mean square algorithm based adaptive controller is preferred where the learning rate is found by trial and error. The passive filter is tuned to the dominant harmonics and the active filter/series hybrid filter compensates other than dominant harmonics. The reference signal for the active filter is the fundamental current attained from the line current and the hysteresis controller switches the MOSFET in order that the line current follows the reference current. The study is carried out in the system by considering the line impedance. The different types of filter are studied with adaptive controller in MATLAB environment.
机译：前端系统中混合滤波器的分类拓扑可补偿无功和电流谐波。在这项研究中，从有源滤波器的谐波减少，功率因数和电压应力的角度分析了混合滤波器（SSHF）的各种拓扑。分析采用混合滤波器的三种配置，以减轻谐波和无功功率。并联混合滤波器，串联混合滤波器和并联串联混合滤波器是混合滤波器的不同拓扑。有源和无源组件的组合形成混合滤波器，其中有源滤波器由自适应控制器控制。在通过反复试验发现学习率的情况下，首选基于最小均方算法的自适应控制器。无源滤波器调谐到主谐波，而有源滤波器/串联混合滤波器则补偿主谐波之外的其他谐波。有源滤波器的参考信号是从线路电流获得的基本电流，并且磁滞控制器切换MOSFET，以使线路电流跟随参考电流。该研究是在系统中通过考虑线路阻抗来进行的。在MATLAB环境下用自适应控制器研究了不同类型的滤波器。

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