The new power system composed of photovoltaic power generation is an important part of achieving carbon peak and carbon neutrality, and it is bound to integrate with energy storage, promoting the development of integrated photovoltaic-storage-charging systems. With the rapid development of 800V new energy vehicles, fast charging piles will be integrated into the photovoltaic-storage-charging system in the future, forming a new power system or microgrid. On one hand, bidirectional charging and discharging at high voltage is a typical feature of the new photovoltaic-storage-charging system. Silicon carbide devices, by upgrading module power and energy conversion efficiency, will be widely used in super-fast charging infrastructure. On the other hand, new energy vehicles are the largest application scenario for silicon carbide power semiconductors. Silicon carbide, with its high voltage resistance, high temperature resistance, and high-frequency characteristics, is expected to rapidly replace silicon-based and IGBT in high-voltage systems, significantly improving vehicle performance and optimizing the overall vehicle architecture. In addition to charging piles and wireless charging, silicon carbide power semiconductors have multiple in-vehicle application scenarios, including motor controllers, onboard chargers (OBC), DC-DC converters, and air compressors.
