This paper details a novel matrix topology—Sparse Matrix Converter, it compares to matrix converter has the same advantages such as: fourquadrantoperation;
本文介绍了一种新型的矩阵变换器—稀疏矩阵变换器，它具有传统的矩阵变换器的优点：四象限运行；
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Analysis the realization of the direct torque control used in asynchronous motor's four-quadrantoperation.