FPGA-Based Reconfigurable Control for Fault-Tolerant Back-to-Back Converter Without Redundancy
FPGA-Based Reconfigurable Control for Fault-Tolerant Back-to-Back Converter Without Redundancy
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DOI：
10.1109/tie.2012.2200214
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发表时间：
2013-08
影响因子：
7.7
通讯作者：
M. Shahbazi;P. Poure;S. Saadate;M. Zolghadri
中科院分区：
文献类型：
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作者：
M. Shahbazi;P. Poure;S. Saadate;M. Zolghadri
本文研究了一种基于现场可编程门阵列的无冗余容错背靠背转换器。在故障发生之前，容错变流器的运行方式与传统的背靠背六桥臂变流器相同，故障发生后，它变成五桥臂变流器。讨论了一种基于现场可编程门阵列的可重构控制策略的设计、实现和实验验证。这种可重新配置的控制策略允许转换器在最小程度上受到其中一个半导体开关故障的影响而连续运行。使用非常快速的检测方案来检测和定位故障。基于一种适合快速成型的方法，实现了故障检测和全数字控制方案在单片FPGA上的实现。进行了现场可编程门阵列和实验测试，并给出了测试结果。这些结果证实了所提出的可重构控制和容错结构的能力。
In this paper, an FPGA-based fault-tolerant back-to-back converter without redundancy is studied. Before fault occurrence, the fault-tolerant converter operates like a conventional back-to-back six-leg converter, and after the fault, it becomes a five-leg converter. Design, implementation, and experimental verification of an FPGA-based reconfigurable control strategy for this converter are discussed. This reconfigurable control strategy allows the continuous operation of the converter with minimum affection from a fault in one of the semiconductor switches. A very fast detection scheme is used to detect and locate the fault. Implementation of the fault detection and of the fully digital control schemes on a single FPGA is realized, based on a suited methodology for rapid prototyping. FPGA in loop and also experimental tests are carried out, and the results are presented. These results confirm the capability of the proposed reconfigurable control and fault-tolerant structure.