Peña-Carro Paula, Izquierdo-Monge Oscar
Energy, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, MADRID, SPAIN, 28040, Spain.
Open Res Eur. 2024 Jan 9;2:123. doi: 10.12688/openreseurope.15154.2. eCollection 2022.
This article presents the demonstrative development of the Towards Intelligent DC-based hybrid Grids Optimizing the Network performance (TIGON) project at the Centre for the Development of Renewable Energy - Centre for Energy, Environmental and Technological Research (CE.D.E.R.-CIEMAT), as well as the established objectives to be achieved with the implementation of a microgrid with smart grid architecture based on direct current (DC) and integrated into the current energy system. This type of architecture is proposed as a future solution to reduce energy losses caused by DC-alternating current (AC) conversions, increasing the overall performance and profitability of hybrid grids. All this without forgetting to ensure the supply, stability and reliability of the system with the development of all the necessary equipment and protections to make this approach a reality. The microgrid design and process of implementation start from a transformation centre, from which the medium voltage direct current (MVDC) grid will be created by the Solid State Transformer (SST). In the MVDC grid, we will find a bank of lead-acid batteries and other essential equipment in the microgrid, a DC/DC converter that will create the low voltage direct current (LVDC) grid. On the LVDC side, several branches have been designed to connect the rest of the systems; generation (mini-wind and photovoltaic), storage (LFP batteries) and loads (AC and DC loads). Each of the equipment will have a connection to the DC grid through converters made exclusively for this equipment and connexion to the AC grid, which will allow us to obtain all the necessary data to carry out the required studies to achieve the established objectives of the project.
本文介绍了可再生能源发展中心 - 能源、环境与技术研究中心（CE.D.E.R.-CIEMAT）的基于智能直流的混合电网优化网络性能（TIGON）项目的示范发展情况，以及实施基于直流的智能电网架构并融入当前能源系统的微电网所要实现的既定目标。提出这种架构作为未来的解决方案，以减少直流 - 交流（AC）转换造成的能量损失，提高混合电网的整体性能和盈利能力。同时，在开发所有必要设备和保护措施以实现这一方法的过程中，不忘确保系统的供电、稳定性和可靠性。微电网的设计和实施过程从一个转换中心开始，通过固态变压器（SST）从该中心创建中压直流（MVDC）电网。在MVDC电网中，我们会找到一组铅酸电池和微电网中的其他重要设备，以及一个将创建低压直流（LVDC）电网的DC/DC转换器。在LVDC侧，设计了几个分支来连接其余系统；发电（小型风力和光伏）、储能（磷酸铁锂电池）和负载（交流和直流负载）。每个设备都将通过专门为此设备制造的转换器连接到直流电网，并连接到交流电网，这将使我们能够获取所有必要数据，以开展所需研究，实现项目既定目标。
