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首页> 外文期刊>Electric power systems research >Open-circuit switch fault tolerant wind energy conversion system based on six/five-leg reconfigurable converter
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Open-circuit switch fault tolerant wind energy conversion system based on six/five-leg reconfigurable converter

机译：基于六/五腿可重构转换器的开路开关容错风能转换系统

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In this paper, an FPGA-controlled fault tolerant back-to-back converter for DFIG-based wind energy conversion application is studied. Before an open-circuit failure in one of the semiconductors, the fault tolerant converter operates as a conventional back-to-back six-leg one. After the fault occurrence in one of the switches, the converter will continue its operation with the remaining five healthy legs. Design, implementation, simulation and experimental verification of a reconfigurable control strategy for the fault tolerant six/five leg converter used in wind energy conversion are discussed. The proposed reconfigurable control strategy allows the uninterrupted operation of the converter with minimum affection from an open-circuit switch failure in one of the semiconductors. Software reconfiguration is also necessary in PWM signal generation unit, to assure that proper gate signals are calculated and generated based on the actual five-leg structure Simulations and experimental tests are carried out and the results are presented and compared. They all confirm the capability of the studied reconfigurable control and proposed fault tolerant architecture in ensuring the system's service continuity. (C) 2016 Elsevier B.V. All rights reserved.
机译：本文针对基于DFIG的风能转换应用，研究了FPGA控制的容错背靠背转换器。在其中一种半导体出现开路故障之前，容错转换器的工作方式与传统的背靠背六脚式转换器一样。在其中一个开关中发生故障后，转换器将继续使用其余五个正常分支运行。讨论了用于风能转换的容错六/五脚转换器的可重构控制策略的设计，实现，仿真和实验验证。所提出的可重构控制策略允许转换器的不间断运行，而对其中一个半导体器件的开路开关故障的影响最小。 PWM信号生成单元中也需要软件重新配置，以确保根据实际的五脚结构计算并生成正确的门信号，并进行了仿真和实验测试，并对结果进行了介绍和比较。它们都证实了所研究的可重构控制和提议的容错体系结构在确保系统服务连续性方面的能力。 （C）2016 Elsevier B.V.保留所有权利。

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