交流/交流变换器的重叠时间和压降补偿

38th IAS Annual Meeting on Conference Record of the Industry Applications Conference, 2003. Pub Date : 2003-10-12 DOI:10.1109/IAS.2003.1257504

A. Akdag, P. Stefanutti, L. Meysenc, N. Hugo

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引用次数: 8

摘要

本文介绍了一种采用交/交直接变换器和带中频隔离变压器的逆变器的交/直流变换器系统。交/交变换器的工作原理是基于软换相技术。为了使AC/AC变换器的零电流开关正常工作，引入了重叠时间。在工作过程中，由于铜的损耗，通过中频变压器的电流会引起电压下降。这两种现象导致了与交/交环变换器实际工作的偏差。本文通过推导非理想工况下的相关公式，提出了一种补偿技术。通过这种补偿，整个系统将更快地对变化的条件做出动态反应，并且将稳态运行的误差降至最低。仿真结果验证了所提补偿方案的可行性，具有更好的性能和更快的动态特性。

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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Overlap time and voltage drop compensation in an AC/AC converter

This paper presents an AC/DC converter system utilizing an AC/AC direct converter and an inverter with a medium frequency isolating transformer. The operation of the AC/AC converter is based on soft commutation technique. Overlap time has been introduced for a proper zero current switching operation of the AC/AC converter. During operation, the current through the medium frequency transformer causes a voltage drop due to copper losses. These two phenomena result in deviations from the actual operation of the AC/AC cycloconverter. In this paper, a compensation technique is proposed by deriving the related formulas for nonideal operating conditions. With such compensation, the overall system will react dynamically to the changing conditions faster and the error in steady state operation is minimized. The simulation results verify the feasibility of the proposed compensation scheme for a better performance and faster dynamics.

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38th IAS Annual Meeting on Conference Record of the Industry Applications Conference, 2003.

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