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首页> 外文期刊>Power Electronics, IET >Single-phase current source converter with power decoupling capability using a series-connected active buffer
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Single-phase current source converter with power decoupling capability using a series-connected active buffer

机译：使用串联有源缓冲器具有功率去耦能力的单相电流源转换器

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摘要

This study proposes a new power decoupling circuit applied to the single-phase current source converter (SCSC). Differing from the existing power decoupling technologies, the proposed power decoupling circuit could be viewed as a controlled voltage source in series with the DC inductor, and work with SCSC independently. That facilitates the separate design of the modulation schemes and the control algorithms for the power decoupling circuit and SCSC, and reduces the operation restrictions imposed by requirements. The fundamental principle of the proposed converter is analysed, and the voltage reference requirement for the buffer capacitor is investigated. To guarantee high input current quality of SCSC, a control method, where the input current is treated as a virtual control input, is proposed. Finally the effectiveness of this topology is verified by the simulations and experimental results.
机译：这项研究提出了一种适用于单相电流源转换器（SCSC）的新型功率去耦电路。与现有的电源去耦技术不同，所提出的电源去耦电路可以被视为与直流电感器串联的受控电压源，并且可以独立于SCSC工作。这有助于对功率去耦电路和SCSC的调制方案和控制算法进行单独设计，并减少了要求带来的操作限制。分析了所提出转换器的基本原理，并研究了缓冲电容器的参考电压要求。为了保证SCSC的高输入电流质量，提出了一种将输入电流作为虚拟控制输入的控制方法。最后，通过仿真和实验结果验证了该拓扑的有效性。

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