为有效减少共模电压和输出电缆对高压变频器的不良影响，提出了一种LRC滤波器拓扑结构，给出了滤波器各个参数选取原则。
For effectively eliminating the bad impact of the output cable, a topological structure of LRC filter is presented and its principle of parameter selection is given.
首先，详细分析有源电力滤波器的各种拓扑结构，并在此基础上选择适合高压、大功率系统的有源电力滤波器拓扑结构进行深入分析；
Firstly, the topology which is appropriate for high voltage and big power system is selected based on the analyses of various active power filter topology, and analysis it deeply.
多调谐滤波器在电路拓扑结构上通常由一个串联支路和多个并联支路组成。
In general the circuit topology of multi-tuned filter consists of one series branch and multi-parallel branches.
本文从电力系统谐波研究的实际问题出发，首先阐述了有源电力滤波器的分类及拓扑结构以及优势和应用前景。
In this paper, depending on the real problems of the power system harmonics, first describing the classification, topological structure, the advantages and applications of active power filter.
提出了一种新型混合有源滤波器的拓扑结构。
这种滤波器采用灵活的拓扑结构和耦合结构，可以实现传输零点，从而提高滤波器带外抑制特性，或者使群时延更加平坦。
Flexible topology and coupling structures are used to realize transmission zeros, thereby enhancing the stop band rejection or making more flat group delay.
本文建立了采用LCL滤波器的网侧变换器的拓扑结构和数学模型，设计了LCL滤波器的参数。
Using LCL-filter can resolve these problems. The topology and mathematical model of grid-side converter based LCL filter are established, the parameters of LCL-filter are designed.
本文建立了采用LCL滤波器的网侧变换器的拓扑结构和数学模型，设计了LCL滤波器的参数。
Using LCL-filter can resolve these problems. The topology and mathematical model of grid-side converter based LCL filter are established, the parameters of LCL-filter are designed.
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