Investigation of a 2/3-step voltage-based commutation method for matrix converters
Investigation of a 2/3-step voltage-based commutation method for matrix converters
复制标题
矩阵变换器 2/3 步电压换相方法的研究
DOI：
10.1109/apec.2012.6165850
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
W. Hofmann
中科院分区：
文献类型：
--
作者：
S. Krauss;N. Schwingal;W. Hofmann
在过去的几年里，矩阵变流器技术已经成长为一种与普通电压源背靠背逆变器技术相竞争的替代技术。因此，人们的兴趣仍然仅限于学术研究人员。一个产业渗透的过程还没有启动。造成这种情况的主要原因是矩阵转换器的换流，它承受着负载电流中断和输入电压短路的无处不在的风险。在不使用额外硬件的情况下，矩阵转换器中的换向作为交错多步换向来执行。本论文的主题是研究一种新型的2/3步电压换相方法，其特点是提高了对输入电压短路的安全性。在基本换相状态机的基础上，对空间矢量调制矩阵变流器进行了数值计算，分析了其对输出电压和输入电流质量以及变流器效率的影响。所得到的理论结果将被实验结果所证实。
Matrix converter technology has grown up to a competitive alternative towards the common voltage source back-to-back inverter technology over the last years. Hence, the interest is still restricted to academic researchers. A process of industrial penetration is not yet initialized. The main reason for that is the current commutation of the matrix converter, which suffers from an omnipresent risk of load current interruption and input voltage short circuits. Provided that no additional hardware is used, the commutation in matrix converters is performed as a staggered multistep commutation. The papers subject is the investigation of a novel 2/3-step voltage-based commutation method, which is characterized by an increased safety against input voltage short circuits. Next to the basic commutation state machine, some numerical calculations on a space vector modulated matrix converter have been carried out to analyze the impact on output voltage and input current quality as well as the converter efficiency. The obtained theoretical results will be proved by experimental results, finally.