提高并网电源变换器暂态响应的DC-Link辅助电路实现

2018 IEEE International Conference on the Science of Electrical Engineering in Israel (ICSEE) Pub Date : 2018-12-01 DOI:10.1109/ICSEE.2018.8646182

M. Mellincovsky, V. Yuhimenko, A. Kuperman

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引用次数: 1

摘要

在单相功率因数校正器(PFC)中，辅助电路通常用于对直流链路的脉动功率进行解耦。这些电路由双向DC-DC转换器组成，由辅助电容器终止。这些辅助模块通常是为了减少利用电容而实现的。这与功率因数校正器的慢响应相结合，导致在重瞬态期间产生大电压降。本文采用辅助变换器来改善系统瞬态响应，即使与原始系统响应相比也是如此。提出了一种计算达到期望响应所需电容的数学表达式。分析结果得到了实验和仿真结果的充分支持。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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DC-Link Auxiliary Circuit Implementation to Improve Transient Response of Grid Connected Power Converters

Auxiliary circuits are commonly used to decouple the pulsating power from DC-link in single phase power factor correctors (PFC). Those circuits consist on a bi-directional DC-DC converter, terminated by an auxiliary capacitor. Those auxiliary modules are commonly implemented to reduce the utilized capacitance. This, in conjunction with the power factor corrector slow response, results in a large voltage drop during heavy transient. In this paper the auxiliary converter is used to improve the system response during transients even when is compared to the original system response. A mathematical expression to calculate the capacitance needed to achieve the desire response is suggested. The analytical findings are fully supported by experimental and simulations results.

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2018 IEEE International Conference on the Science of Electrical Engineering in Israel (ICSEE)

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