Overmodulation in voltage source inverter with small Dc-link capacitor

被引：15
|
作者：
Saren, H [1 ]
Pyrhonen, O [1 ]
Rauma, K [1 ]
Laakkonen, O [1 ]
机构：
[1] Lappeenranta Univ Technol, Dept Elect Engn, Lappeenranta 53850, Finland
来源：
2005 IEEE 36TH POWER ELECTRONIC SPECIALISTS CONFERENCE (PESC), VOLS 1-3 | 2005年
关键词：
D O I：
10.1109/PESC.2005.1581733
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Overmodulation (OM) is used to increase the voltage output of the PWM controlled frequency converter. Full inverter voltage utilization is important because of the cost and output power improvement perspectives. The voltage source Inverter (VSI) with high overmodulation performance is less sensitive to inverter dc-link voltage disturbances. Dc-link voltage drop may result in unintentional entrance to the overmodulation region. Dc-link drop is often due to line voltage sag or fault conditions. When small dc-link capacitor is used, voltage drops due to full-wave rectifier bridge are present all the time. A high performance overmodulation method improves the drive performance under such conditions.
引用
收藏
页码：892 / 898
页数：7
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