Wide Correction Range Three-Level Dynamic Voltage Corrector
Wide Correction Range Three-Level Dynamic Voltage Corrector
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DOI：
10.1109/tpel.2015.2501827
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发表时间：
2016-09
影响因子：
6.7
通讯作者：
Jiankun Cao;Haichun Liu;P. Ding;Binbin Yang;Shaojun Xie
中科院分区：
文献类型：
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作者：
Jiankun Cao;Haichun Liu;P. Ding;Binbin Yang;Shaojun Xie
为了避免电网电压暂降，在集中式电源的敏感负荷端采用动态暂降校正器。本文主要研究电网电压大范围波动的校正和补偿后电压的质量。针对上述问题，提出了一种低成本宽校正范围动态电压校正器.分析了其工作原理、电压校正范围和关键参数的设计考虑。直流侧电压的增加拓宽了电压暂降的校正范围，而电压暂升校正的实现则得益于能量的双向流动。仿真和实验结果验证了理论分析的正确性。研制了一种适用于集中供电的飞机地面电源装置样机。它具有体积小、重量轻、补偿效率高、动态性能好、输出波形质量高等特点。
The dynamic sag correctors are used at the sensitive load terminals of the centralized power supply in order to avoid the grid voltage sag. This paper focuses on the correction of grid voltage swell/sag in large range and the quality of compensated voltage. A wide correction range dynamic voltage corrector is proposed for solving above problems with low cost. The operation principle, the voltage corrector range, and the design consideration of key parameters are analyzed. The increase of dc-link voltage broadens the voltage sag correction range, while the realization of the voltage swell correction benefits from the bidirectional energy flow. The simulation and experimental results verify the validity of the theoretical analysis. A prototype which applies to the centralized power supply-based ground power unit for aircrafts has been developed. It is characterized as small size, light weight, high compensation efficiency, good dynamic performance, and high quality of output waveform.