Zero sequence voltage suppression control with capacitor voltage balancing for a modular multilevel matrix converter
Zero sequence voltage suppression control with capacitor voltage balancing for a modular multilevel matrix converter
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DOI：
10.1109/epe.2015.7309433
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发表时间：
2015-10
期刊：
影响因子：
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通讯作者：
Y. Miura;Keiji Inubushi;Tomoya Yoshida;Takuya Fujikawa;T. Ise
中科院分区：
文献类型：
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作者：
Y. Miura;Keiji Inubushi;Tomoya Yoshida;Takuya Fujikawa;T. Ise
针对电力系统和大功率电机驱动的需要，研究了模块化多电平矩阵变换器的零序电压抑制控制。提出了基于电压空间矢量调制的潮流控制和电容电压平衡控制方案。然而，这些控制方案有问题，他们造成零序电流，影响电力系统和电机的保护。为了减小零序电流，本文提出了通过补偿输入输出系统之间的电压差来抑制零序电压的控制方案。通过9级模块化矩阵变换器的数值仿真和2kw 5级模块化矩阵变换器的实验验证了该控制方案。
Zero sequence voltage suppression control for a modular multilevel matrix converter is investigated, which is required for applications to power systems and high power motor drives. The schemes of power flow control and capacitor voltage balancing control with voltage space vector modulation have been proposed. However, these control schemes have the problem they cause zero sequence current that affects protection for power systems and motors. To reduce the zero sequence current, the control scheme that suppresses zero sequence voltage by compensating voltage difference between input and output systems is proposed in this paper. Numerical simulation of a 9-level modular matrix converter and experiments using a 2-kW 5-level modular matrix converter are conducted to verify the control scheme.