A Control Method for Voltage Source Inverter Without Dc Link Capacitor

被引：26

作者：

de Oliveira Filho, Milton E. ^{[1
]}

Gazoli, Jonas R. ^{[1
]}

Sguarezi Filho, Alfeu J. ^{[1
]}

Ruppert Filho, Ernesto ^{[1
]}

机构：

[1] Univ Estadual Campinas, Dept Syst & Energy Control, Sch Elect & Comp Engn, BR-13083970 Campinas, SP, Brazil

来源：

2008 IEEE POWER ELECTRONICS SPECIALISTS CONFERENCE, VOLS 1-10 | 2008年

关键词：

voltage source inverter; current control; low-pass filters; modulation index;

D O I：

10.1109/PESC.2008.4592660

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：

Voltage source inverter plays an important role in modern industry. Conventional voltage source inverter has a large electrolytic capacitor as energy store element in order to keep the do link voltage constant. However, a large electrolytic capacitor increases the input current distortion. Replacing the large electrolytic capacitor by a small film capacitor the input current quality is improved but the output currents are distorted by low order harmonics. This paper proposes a simple current control method for a voltage source inverter without the use of a large electrolytic capacitor in the do link in order to compensate the low order harmonics in the output currents. The proposed current control scheme employs just one PI regulator and since that the space vector modulation is used in this control the switching frequency of the converter is kept constant.

引用

页码：4432 / 4437

页数：6

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