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首页> 外文会议>IEEE Annual Power Electronics Specialists Conference >A four level drive with isolated DC power supplies
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A four level drive with isolated DC power supplies

机译：具有隔离直流电源的四级驱动器

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摘要

Multilevel drives are being increasingly used in high power drive applications, primarily due to higher voltage capability of the topology and by the availability of more reliable force commutated switches with higher voltage ratings. As compared to the three level inverter, the four level inverter permits higher voltage capability and the DC link voltage balancing problem is dealt with by an innovative use of isolation transformers and multiple rectifiers. The inverter operation is thus less constrained and multilevel PWM characteristics can be fully exploited to optimize the inverter performance. Simulation results demonstrate the system issues and identify design drivers. Experimental results are used to demonstrate the viability of the proposed drive configuration.
机译：多级驱动器越来越多地用于高功率驱动应用，主要是由于拓扑的较高电压能力，并且通过更可靠的力换向开关具有更高的电压额定值。与三电平逆变器相比，四电平逆变器允许更高的电压能力，通过采用创新使用隔离变压器和多个整流器来处理DC链路电压平衡问题。因此，逆变器操作不受限制，并且可以充分利用多级PWM特性以优化逆变器性能。仿真结果展示了系统问题和识别设计驱动程序。实验结果用于证明所提出的驱动配置的可行性。

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