变载波频率调制下滤波器的设计  

The Design of Filter Based on Variable Carrier Frequency Modulation

作　　者：陆庆[1,2] 郑崇伟[2] 戴瑜兴[2] 

机构地区：[1]北京四方继保自动化股份有限公司,北京100085 [2]温州大学电气数字化设计技术浙江省工程实验室,浙江温州325035

出　　处：《电力电子技术》2015年第8期48-50,共3页Power Electronics

基　　金：国家自然科学基金(51207112);浙江省科技计划项目(2014C31093)~~

摘　　要：滤波器的设计对于逆变器并网电流的电能质量至关重要,对此提出一种基于新型调制算法下滤波器的设计。介绍了一种新型变载波调制算法,然后依据变载波频率调制算法下的谐波频谱分布及谐波频谱与谐振频率之间的关系,得出LCL型滤波器的谐振频率及相关滤波器参数。最后通过样机试验验证了该调制算法下设计的LCL型滤波器实际性能更加优越。The filter design is vital for inverter power quality of grid current, so the inverter based on a new type modulation is presented.Firsfly,a new variable carrier frequency modulation algorithm is introduced.Then based on variable carrier frequency modulation algorithm of harmonic spectrum distribution and according to the harmonic spectrum and the relationship between the resonant frequency, it is concluded the resonance frequency of the LCL filter and filter parameters.Finally, experimental test shows that this method is more superior than design of the LCL filter.

关 键 词：滤波器 逆变器 变载波频率 

分 类 号：TN714.3[电子电信—电路与系统]