International Conference Kiwoo Park, Sung-Tak Jou, and Kyo-Beum Lee, "Z-Source Matrix Converter with Unity Voltage Transfer Ratio," in Proc. IECON Conf., Nov. 2009, pp. 4523–4528.
2009
본문
This paper proposes a novel Z-source matrix converter structure and a switching technique for unity voltage transfer ratio. The
conventional matrix converter is well known for its advantages over a DC-linked back-to-back converter, but yet it does not receive
much attention in the industry owing to its reduced voltage ratio (max. 0.866). To overcome the inherent drawback of the low voltage
transfer ratio, a novel matrix converter topology employing a Z-source network is introduced, and then the operating principle and
control scheme are clarified. A simulation of the overall system is carried out and theoretical calculations and feasibility of the
proposed topology are verified.
The results show that the proposed Z-source matrix converter can achieve unity
voltage transfer
ratio by controlling shoot-through
zero interval (T0) and the proposed switching strategy can effectively reduce
the harmonic
distortion of output waveforms.
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