1 MW光伏并网逆变器系统开发研究

2019 IEEE 60th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2019-10-01 DOI:10.1109/RTUCON48111.2019.8982367

K. Ahn, Y. Oh, K. Cho

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引用次数: 1

摘要

本文提出了一种多中心型1mw并网光伏逆变器系统，该系统由2个500kw逆变器面板组成，其中500kw逆变器面板由4个125kw电源栈组成。为了提高大容量逆变器系统的可靠性，提出了一种新的开关方案。根据所提出的开关方案，最大限度地减少了臂短的可能性，并且不需要死区补偿。介绍了所提出的开关方案的详细开关策略和可靠商用产品的主要元件设计。此外，通过温度测试等实验结果验证了该逆变器系统的有效性。

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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A Study on the Development of a 1 MW Grid-Connected Photovoltaic Inverter System

This paper presents a multi-central type 1 MW grid-connected photovoltaic inverter system, which consists of two 500 kW inverter panels that are composed of four 125 kW power stacks. In order to improve the reliability of large capacity inverter system, a new switching scheme is proposed. According to the proposed switching scheme, the possibility of arm-short is most minimized, and the dead time compensation is not needed. The detailed switching strategy of the proposed switching scheme and the major components design for a reliable commercial product are described. Also, the usefulness of the proposed inverter system has been verified by the experimental results include a temperature test.

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来源期刊

2019 IEEE 60th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)

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