Fault-Tolerant Voltage Source Inverter for Permanent Magnet Drives
Fault-Tolerant Voltage Source Inverter for Permanent Magnet Drives
复制标题
DOI：
10.1109/tpel.2011.2135866
复制
发表时间：
2012-02-01
影响因子：
6.7
通讯作者：
Mutschler, Peter
中科院分区：
文献类型：
--
作者：
Errabelli, Rammohan Rao;Mutschler, Peter
本文系统地设计并测试了用于永磁驱动的两电平容错电压源逆变器（VSI）。标准两电平逆变器由三个桥臂组成。在这种容错逆变器的情况下，添加了一个冗余支路来替代故障支路。故障支路隔离和冗余支路插入是通过使用独立的背对背连接的晶闸管来完成的。所提出的逆变器提供了对开关装置的短路和开路故障的容限。故障后性能与正常故障前操作相同，并且故障补偿足够快，使得驱动器操作中的干扰可以忽略不计。使用永磁同步电机的磁场定向控制来验证逆变器的容错能力。
In this paper, a two-level fault-tolerant voltage source inverter (VSI) for permanent magnet drives is systematically designed and tested. A standard two-level inverter consists of three legs. In this case of fault-tolerant inverter, a redundant leg is added that replaces the faulted leg. Faulted leg isolation and redundant leg insertion are done by using independent back-to-back-connected thyristors. The proposed inverter provides tolerance to both short-circuit and open-circuit faults of the switching devices. The postfault performance is the same as the normal prefault operation and fault compensation is fast enough such that there is negligible disturbance in the drive operation. The fault tolerance of the inverter is verified using field-oriented control of a permanent magnet synchronous motor.