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双陷波开关频率滤波器LCLDT的设计

Release Time:2019-03-10  Hits:

Indexed by: Journal Article

Date of Publication: 2017-04-25

Journal: 电工技术学报

Included Journals: Scopus、CSCD、EI

Volume: 32

Issue: 8

Page Number: 256-263

ISSN: 1000-6753

Key Words: LCL滤波器;有源滤波器;LCLDT滤波器;开关频率谐波

Abstract: 传统LCL滤波器及其改进拓扑无法保证在PWM变换器输出的不同频段均具有良好的滤波特性.针对此问题本文提出一种应用于有源滤波器的双陷波开关频率滤波器LCLDT,其兼具LCL滤波器、LLCL滤波器、多调谐陷波滤波器等优点.文中给出了LCLDT滤波器的参数优化设计方法,为其实际工程应用提供理论指导.对各个滤波器在相同背景和成本情况下进行对比研究;仿真和实验验证所提出的LCLDT滤波器的滤波特性优于相关高阶滤波器,能满足电网谐波标准对高次谐波的要求.

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