Open-circuit behavior analysis for indirect matrix converter
Open-circuit behavior analysis for indirect matrix converter
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DOI：
10.1109/iecon.2017.8217285
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发表时间：
2017-10
期刊：
影响因子：
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通讯作者：
Baoping Shi;Bo Zhou
中科院分区：
文献类型：
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作者：
Baoping Shi;Bo Zhou
间接矩阵变换器（IMC）具有不需要直流电解电容、双向流和高功率密度等优点。针对间接矩阵变换器（IMC）的故障情况，提出了一种分析方法，有助于准确地检测其故障。首先，介绍了几种可能的开路故障类型，并进行了电流自由路径分析。然后，结合空间矢量调制（SVM）策略，分析了开路故障发生后直流链路电压的特征。分析结果表明，通过测量直流链路电压可以有效地判别IMC故障。实验结果验证了所提出的分析工作。此外，还在附录中给出了一种简单的钳位电路设计方法。
Indirect matrix converter (IMC) has attractive advantages such as lack of dc-link electrolytic capacitor, bidirectional power flow and high power density. Aiming at faulty condition, this paper presents an analysis work for indirect matrix converter (IMC), which could make contribution to detecting the failure accurately. First, some possible types of open-circuit fault are introduced and the current freewheeling path analysis is presented. Then, combining with space vector modulation (SVM) strategy, the feature of dc-link voltage is analyzed after the occurrence of an open-circuit fault. This analysis result demonstrates that the failure in IMC can be discriminated effectively by measuring dc-link voltage. Experimental results are presented to verify the proposed analytical work. Moreover, a simple design method for clamp circuit is presented in appendix.