Applications Россия

Electric vehicles (EVs) are a rapidly growing segment of the automotive industry owing to the improved technology, low carbon footprints, and government policy incentives. Currently, the electric vehicle industry is undergoing a technological transformation to improve vehicle range with charging infrastructure. Electric vehicle automakers and charge service enterprise are investing heavily in charging station infrastructure in order to support long-range battery electric vehicles and improve EV drivers’experience. Government incentives and automakers’ initiatives for charging infrastructure development are the key factors driving the growth of the global electric vehicle charging stations market. The market is projected to reach around UDS 30 billion by 2027 at a CAGR of 36% from 2019 , based on Meticulous Market Research report. The level 3 DC charging station sub-segment is accounted for the largest share of the overall electric vehicle charging stations market and Asia pacific will command near 50% of the market during the forecast period. The large share of this segment is mainly attributed to rising demand for setting up of charging infrastructure at convenient urban commercial sites. Expensive commercial real estate drives investors and developers to squeeze charger pile sizes and increase charging power. That leads to the increasing demand of high density charger pile modules. To achieve high density design, the power converters need to operate at higher switching frequency with an equal or better efficiency.

Currently, charger pile modules of the state of art design and in volume production almost all use 650V Si MOSFETs in order to get a decent power density and efficiency out. For a design with power over 6 kW, 3-phase input becomes necessary. Since the intermediate bus voltage exceeds 650V device rating requirement, three-level topologies or series-connected converters are the only choice for the design.