用于可再生能源应用的多输入DC-AC转换器

2013 IEEE ECCE Asia Downunder Pub Date : 2013-06-03 DOI:10.1109/ECCE-ASIA.2013.6579132

Devendra Patil, V. Agarwal

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引用次数: 3

摘要

提出了一种适用于可再生能源的高频链路多输入DC-AC变换器。它由用于连接单向源的升压变换器和用于连接存储系统的双向降压变换器组成。采用LLC谐振变换器进一步升压直流电压，将直流转换为高频交流。最后，采用环变换器将高频交流转换为线频。该系统具有功率转换级数少、零件数少、工作频率高的特点。采用软开关技术消除了高频开关损耗，从而降低了对磁性和散热器的要求。这样可以降低成本，提高效率。仿真结果验证了所提出的变换器结构及其控制性能。

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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Multi-input DC-AC converter for renewable energy applications

This paper proposes a high frequency link multi-input DC-AC converter for renewable energy applications. It consists of a boost converter for interfacing uni-directional sources and bi-directional buck-boost converter for interfacing the storage system. An LLC resonant converter is used to further boost the DC voltage and convert DC into high frequency AC. Finally, a cycloconverter is used to convert from high frequency AC to line frequency. The features of the proposed system include reduced number of power conversion stages, low part count, high frequency operation. High frequency switching losses are eliminated using soft switching technique, thereby reducing the magnetics and heat sink requirements. This results in lower cost and higher efficiency. Simulation results are presented to validate the proposed converter configuration and its control performance.

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2013 IEEE ECCE Asia Downunder

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