A Novel Filter Design for Output LC Filters of PWM Inverters

被引：66

作者：

Kim, Hyosung ^{[1
]}

Sul, Seung-Ki ^{[2
]}

机构：

[1] Kongju Natl Univ, Sch EE & Control Eng, Cheonan, South Korea

[2] Seoul Natl Univ, Sch Elect Eng, Seoul, South Korea

来源：

JOURNAL OF POWER ELECTRONICS | 2011年 / 11卷 / 01期

关键词：

Cut-off frequency; Inverter size; L-C combination; Output LC filter; PWM inverter; COMPENSATION; IMPLEMENTATION; ALGORITHM; SCHEME;

D O I：

10.6113/JPE.2011.11.1.074

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The cutoff frequency of the output LC filters of PWM inverters limits the control bandwidth of the converter system while it attenuates voltage ripples that are caused by inverter switching activities. For a selected cutoff frequency of an output LC filter, an infinite number of L-C combinations is possible. This paper analyses the characteristics of output LC filters for PWM inverters terms of the L-C combinations. Practical circuit conditions such as no-loads, full resistive-loads, and inductive-load conditions are considered in the analysis. This paper proposes a LC filter design method for PWM inverters considering both the voltage dynamics and the inverter stack size. An experimental PWM inverter system based on the proposed output LC filter design guideline is built and tested.

引用

页码：74 / 81

页数：8

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