Grid Forming hybrid Transformer for future distribution Grids (GIFhT-4-eGrids)

这项建议建议研究使用具有更先进的控制和优化的电力电子设备的并网混合变压器(GIFhT)，通过主动网络控制和收集有关电网运行的丰富数据，打开更大灵活性的前景。英国承诺到2050年实现净零碳排放，因此电网将不得不应对预计部署的数百万电动运输和供暖系统。满足这一史无前例的能源需求将需要大量吸收可再生能源，并提高能源网络的容量和灵活性，以满足额外的需求。另一方面，可再生能源发电和储能的增长正在改变配电网中潮流的性质，给配电网运营商(DNO)带来了巨大的挑战。提出的GIFhT融合了传统的低频变压器(LFT)和部分额定的现代电力电子模块(PEM)。提出的概念将LFT的稳健性、高功率效率和低成本与PEM的广泛多功能性结合在一起。GIFhT概念将通过两种方式提供：(I)定制设计，其中GIFhT概念将完全自由地遵循硬件规范；包括磁性和电力电子设计。这种方法旨在释放GIFhT概念的全部潜力，在完全替换现有配电网资产时为网络运营商带来最大好处。(Ii)改装设计，转而着眼于现有配电变压器的便捷升级解决方案；牺牲潜在性能，以最低成本和最低中断满足网络升级的迫切需求。

This proposal suggests to investigate the use of Grid-Forming Hybrid Transformers (GIFhT) with more advanced control and optimized power electronics to open the prospect of greater flexibility through active network control and the collection of rich data about grid operations.The UK is committed to achieve net zero carbon emissions by 2050 and therefore the electricity grid will have to cope with the predicted deployment of millions of electrified transport and heating systems. Meeting this unprecedented energy demand will require significant uptake in renewable energy and an increase in both capacity and flexibility of energy networks to deliver the extra demand. On the other hand, the growth in renewable generation and energy storage is changing the nature of power flows in distribution networks, setting tremendous challenges for Distribution Network Operators (DNOs) to meet. The proposed GIFhT merges the traditional Low-Frequency Transformer (LFT) with partially-rated modern Power Electronics Modules (PEM). The proposed concept blends the robustness, high power efficiency, and low cost of LFT with the extensive versatility of PEM. The GIFhT concept will be delivered with two approaches, (i) Bespoke design, where GIFhT concept will be given complete freedom to the hardware specifications; including both the magnetic and power electronics designs. This approach aims at unlocking the full potentials of the GIFhT concept, delivering maximum benefits to the network operators when fully replacing existing distribution grid assets. (ii) Retrofit design, which will instead be looking at convenient upgrade solutions to existing distribution transformers; sacrificing potential performance with an answer to the immediate demand for network upgrades at minimal costs and disruptions.