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首页> 外文期刊>Power Electronics, IET >Switched mode power supplies for charge-up, discharge and balancing dc-link capacitors of diode-clamped five-level inverter
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Switched mode power supplies for charge-up, discharge and balancing dc-link capacitors of diode-clamped five-level inverter

机译：开关模式电源，用于二极管钳位五电平逆变器的充电，放电和平衡直流链路电容器

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摘要

Inductor switch mode power supplies (SMPS) operated in a discontinuous inductor current mode are used to balance the dc-link capacitor voltages of a diode-clamped five-level inverter. The SMPS concept is extended to charge up and discharge the four dc-link capacitors. Complete diode-clamped five-level inverter operation is implemented, from start-up, charge-up, balance dc-link capacitors in normal operation, discharge, to shut-down, which have not been presented before. Ramped start of a controlled rectifier sourcing a boost converter limits the lowest dc-link capacitor inrush current and control its charging time. SMPS in conjunction with the boost converter are used to control the dc-link capacitor charge-up and discharge times. The proposed inverter complete operation is validated by simulation and practically.
机译：以不连续电感器电流模式工作的电感器开关模式电源（SMPS）用于平衡钳位二极管的五电平逆变器的直流链路电容器电压。 SMPS概念扩展为对四个直流链路电容器充电和放电。实现了完整的二极管钳位五电平逆变器操作，从启动，充电，平衡正常运行中的直流母线电容器，放电到关闭，这在以前都没有介绍过。供应升压转换器的可控整流器的斜坡启动可限制最低的直流链路电容器浪涌电流并控制其充电时间。 SMPS与升压转换器一起用于控制直流母线电容器的充电和放电时间。所提出的逆变器的完整运行已通过仿真和实际验证。

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