Metrology requirements of state-of-the-art protection schemes for DC microgrids

The Journal of Engineering

Puran Rakhra¹  Chunpeng Li² 

[1] National Physical Laboratory , London , UK;University of Strathclyde , Glasgow , UK

关键词: modern resources;    considerable attention;    design;    state-of-the-art renewable technologies;    metrology requirements;    yet flexible interface;    PEC components;    electric vehicles;    DC-side fault transients;    DC protection devices;    consumers;    energy storage systems;    wind/photovoltaic resources;    power distribution systems;    energy efficiency;    DC MG model;    technical challenges;    DC MGs;    newly published DC protection schemes;    DC microgrids;    climate change;    environmental incentives;    efficient power electronic converters;    st;    ardisation;    simple interface;    state-of-the-art protection schemes;   

DOI  :  10.1049/joe.2018.0254

学科分类：工程和技术（综合）

来源: IET

【 摘 要 】

Environmental incentives to combat climate change are providing the motivation to improve the energy efficiency of power distribution systems and integrate state-of-the-art renewable technologies. Examples include wind/photovoltaic resources, energy storage systems, and electric vehicles integrated via efficient power electronic converters (PEC). Subsequently, DC microgrids (MGs) and distribution systems are receiving considerable attention in the literature because they offer a simple, yet flexible, interface between these modern resources and consumers. However, many technical challenges relating to the design and standardisation of DC protection devices still exist that must be overcome prior to widespread adoption. For example, many protection schemes tailored for DC MGs have been proposed, but few of them have considered the metrology requirements for practical implementation. This study will first review the key features of DC-side fault transients simulated on a DC MG model in MATLAB/Simulink, and analyse the disruptive impact on PEC components. Secondly, a review of newly published DC protection schemes is performed. These protection schemes are classified by their fundamental operating principles and mathematically derived metrology requirements are given.

【 授权许可】

CC BY