Control method for cascaded H-bridge multilevel inverter with faulty power cells

被引：0
|
作者：
Wei, SM [1 ]
Bin, W [1 ]
Li, FH [1 ]
Sun, XD [1 ]
机构：
[1] Ryerson Univ, Dept Elect & Comp Engn, Toronto, ON, Canada
来源：
APEC 2003: EIGHTEENTH ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION, VOLS 1 AND 2 | 2003年
关键词：
multilevel inverter; space vector modulation; PWM (Pulse width modulation); fault;
D O I：
暂无
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：
To increase the fault tolerance for cascaded H-bridge multilevel inverters, a novel control algorithm is proposed for the inverter operating under faulty conditions. The influence of various faults on space vectors is investigated and the maximum achievable output voltage of the inverter with faulty power cells is derived. Making use of the redundant switching states, the proposed algorithm is able to produce a three-phase balanced line-to-line voltage with minimum harmonic distortion for the inverter with disabled power cells. In addition, the control algorithm is suitable for use in the cascaded H-bridge inverters of any voltage levels. Simulation and experimental results are provided for verification.
引用
收藏
页码：261 / 267
页数：7
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