Grid connected DC distribution system for efficient integration of sustainable energy sources

2011 IEEE/PES Power Systems Conference and Exposition Pub Date : 2011-03-20 DOI:10.1109/PSCE.2011.5772623

M. Elshaer, A. Mohamed, O. Mohammed

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引用次数: 16

Abstract

In this paper, some of the aspects related to the design and implementation of grid connected DC microgrids are investigated. A prototype system has been designed and implemented to address these aspects. The described system is dependent mainly on sustainable energy sources. Hence, a special care has been given to dealing with these kinds of sources while designing different components of the system. Certain features had to be maintained in the system in order to assure efficient integration of different sources, efficient and reliable load-feeding capability and full controllability of voltage and power flow among various buses in the system. Moreover, a fully controlled rectifier has been designed to tie the DC grid with the AC one. A vector decoupling controlled sinusoidal pulse width modulation (SPWM) technique has been used to allow the designed rectifier to maintain a constant output voltage while being able to control the active and reactive power drawn from the grid independently. Both simulation and experimental results verify the validity of the proposed system.

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并网直流配电系统对可持续能源的有效整合

本文研究了与并网直流微电网设计和实现有关的一些问题。已经设计并实现了一个原型系统来解决这些问题。所描述的系统主要依赖于可持续能源。因此，在设计系统的不同组件时，要特别注意处理这些类型的源。为了保证不同电源的有效集成、高效可靠的负载馈电能力以及系统中各母线之间电压和潮流的完全可控性，系统必须保持某些特征。此外，还设计了一个完全可控的整流器，将直流电网与交流电网连接起来。采用矢量解耦控制的正弦脉宽调制(SPWM)技术，使所设计的整流器能够保持恒定的输出电压，同时能够独立控制从电网吸取的有功和无功功率。仿真和实验结果验证了该系统的有效性。

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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2011 IEEE/PES Power Systems Conference and Exposition

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