Modeling, Analysis, and Parameters Design of LC-Filter-Integrated Quasi-Z -Source Indirect Matrix Converter
Modeling, Analysis, and Parameters Design of LC-Filter-Integrated Quasi-Z -Source Indirect Matrix Converter
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DOI：
10.1109/tpel.2016.2553582
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发表时间：
2016-04
影响因子：
6.7
通讯作者：
Shuo Liu;B. Ge;Yushan Liu;H. Abu-Rub;R. Balog;Hexu Sun
中科院分区：
文献类型：
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作者：
Shuo Liu;B. Ge;Yushan Liu;H. Abu-Rub;R. Balog;Hexu Sun
通过在电网和传统间接矩阵变换器（IMC）之间耦合阻抗网络，LC滤波器集成准Z源（qZS）IMC克服了传统IMC的0.866电压增益限制，并且还避免了传统qZS矩阵变换器所需的输入滤波器以减轻电流谐波。本文进一步研究了集成LC滤波器的qZS内模控制器的升压和LC滤波功能。通过小信号模型和电路分析，给出了电压增益、滤波功能和qZS网络参数设计。仿真和实验结果验证了所建模型、电压增益分析和该型qZS内模控制器参数设计的正确性。将LC滤波器集成的qZS网络的输入电流与传统Z源和qZS IMC进行比较，以研究集成LC滤波能力。实验结果表明，LC滤波器集成的qZS网络提供了必要的滤波功能。因此，传统的输入滤波器可以被取消，这降低了成本，功率损耗，体积和重量为整个系统，当与其他传统的拓扑结构，需要输入滤波器，甚至那些与阻抗源网络。
Through coupling the impedance network between the grid and the conventional indirect matrix converter (IMC), the LC-filter-integrated quasi-Z-source (qZS) IMC overcomes the 0.866 voltage gain limitation of the conventional IMC and also avoids the input filter that is required to mitigate current harmonics of the conventional qZS matrix converters. This paper further investigates the voltage boosting and LC filtering function of the LC-filter-integrated qZS IMC. The voltage gain, the filtering function, and qZS network parameters design are presented using a small-signal model and circuit analysis. Simulation and experimental results validate the built model, the voltage gain analysis, and the parameters design of this type of qZS IMC. The input current of the LC-filter-integrated qZS network is compared to the conventional Z-source and qZS IMCs to investigate the integrated LC filtering capability. The experimental results verify that the LC-filter-integrated qZS network provides the necessary filtering function. Thus, the traditional input filter can be eliminated, which reduces the cost, power loss, volume, and weight for the overall system, when compared with the other conventional topologies that require the input filter, even those with impedance-source networks.