Micro Substation with Power Voltage Transformers for EV Charging

The rising of electric vehicle (EV) adoption as a tool in the energy transition requires the development of a widespread charging infrastructure. Considering that the EV adoption depends also on the reduction of the ‘consumer anxiety’ regarding charging access (availability within battery range) and charging time, the infrastructure must be deployed at a faster pace along with the increasing EV on the roads, in order to provide a successful transition. On the other hand, the application of classic solutions for energy supply for this purpose are time consuming, delaying the transition. Moreover, they can be costly when grid reinforcements are needed, mainly outside the urban centres, preventing a global coverage for EV at a price that society is willing to accept. The paper presents a solution to overcome these challenges by feeding EV charging stations directly from the existing transmission grid, delivering high power without grid constraints and using a modular and scalable approach.