Smart solid-state transformers in the distribution grid using silicon carbide technology

采用碳化硅技术的配电网智能固态变压器

• 批准号: 2309999
• 金额: --
• 依托单位: University of Nottingham
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2019
• 资助国家: 英国
• 起止时间: 2019 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2309999
• 关键词: Smart; solid; state; transformers; distribution

The project will be considering the feasibility and developing a product to replace traditional transformers with compact high-frequency smart solid-state transformers using wide-bandgap technology, such as silicon carbide.With the emergence of silicon carbide technology, it is feasible to use smart solid-state transformers to replace traditional transformers used in distribution grid to stepdown 11 kV to 400 V. A smart solid-state transformer converts low-frequency main supply to a high-frequency intermediate supply, which is stepped down by a small high-frequency transformer. Then, high-frequency intermediate is converted back to main supply frequency.As well as being smaller, the switching devices of a smart solid-state transformer are controllable, which allows control of bidirectional power flow between distribution and supply grids, which is necessary for distributed renewable energy generation. In addition, they can be used for phase balancing and power factor control and they can be used to output DC power, which could be used to charge electric vehicles.This project will seek to design a modular silicon carbide smart solid-state transformer, which will be able to be used alongside others to be able to be used with a wide range of voltages and currents, and range of inputs and output power forms.

该项目将考虑可行性，开发一种产品，用碳化硅等宽禁带技术的紧凑型高频智能固态变压器替代传统变压器。随着碳化硅技术的出现，用智能固态变压器替代配电网中使用的传统变压器，将11 kV降压至400 V是可行的。智能固态变压器将低频主电源转换为低频主电源。 高频中间电源，由小型高频变压器降压。然后，高频中频被转换回主电源频率。智能固态变压器的开关器件体积更小，而且可控，可以控制配电网和供电网之间的双向潮流，这对于分布式可再生能源发电是必需的。此外，它们还可以用于相位平衡和功率因数控制，并且可以用于输出直流电，用于为电动汽车充电。该项目将寻求设计一种模块化碳化硅智能固态变压器，该变压器将能够与其他变压器一起使用，能够适应广泛的电压和电流范围以及多种输入和输出功率形式。