Simulations and field test results for potential applications of LV DC distribution network to reduce flicker effect

V. Musolino, L. Piegari, E. Tironi, L. Martini, A. Brambilla, C. Tornelli
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引用次数: 19

Abstract

The growing diffusion of distributed energy sources is making higher and higher the attention for DC distribution networks, that present some advantages related to an easier integration of renewable energy sources, storage systems and electrical drives. The DC network has to be connected to the traditional AC network by means of a converter interface whose main scope is the regulation of the power fluxes exchanged between the two networks. In this paper it is shown how it is possible to reduce flicker phenomenon, appearing when a pulsing load is connected on the DC network, controlling the front-end converter and using a storage system connected to the DC line. Numerical simulation results have been carried out to prove this capability. Moreover some preliminary experimental tests, realized on a test facility under construction at ERSE, have been performed and results are reported.
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低压直流配电网减少闪变效应的潜在应用仿真及现场试验结果
分布式能源的日益普及使得直流配电网受到越来越多的关注,因为它具有一些与可再生能源、存储系统和电力驱动更容易集成有关的优势。直流网络必须通过变换器接口与传统的交流网络连接,变换器接口的主要作用是调节两个网络之间交换的功率通量。本文介绍了如何通过控制前端变换器和使用与直流线路相连的存储系统来减少直流网络上脉动负载时出现的闪烁现象。数值模拟结果证明了这种能力。此外,在欧洲工程技术研究所正在建设的试验设施上进行了一些初步试验,并报告了结果。
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