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

该项目将考虑可行性，开发一种产品，用碳化硅等宽带隙技术的紧凑型高频智能固态变压器取代传统变压器。随着碳化硅技术的出现，用智能固态变压器取代配电网中使用的传统变压器将11 kV降压到400 V是可行的。状态Transformer将低频主电源转换为高频中间电源，由小型高频Transformer降压。智能固态Transformer的开关器件不仅体积小，而且是可控的，因此可以控制配电网和供电网之间的双向功率流，这是分布式可再生能源发电所必需的。此外，它们还可用于相位平衡和功率因数控制，并可用于输出直流电源，可用于电动汽车充电。本项目将寻求设计一种模块化碳化硅智能固态Transformer，该变压器将能够与其他变压器一起使用，能够用于各种电压和电流以及各种输入和输出电源形式。

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.