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Daihen designs-in Infineon 2000V SiC module

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Contributes to industry's highest power density grid storage ground power conditioner

Infineon's CoolSiC 2000 V modules have been selected by Japan-based Daihen Corporation for its innovative unit-type power conditioners for grid storage batteries.

The unit-type power conditioner for grid storage batteries launched by Daihen in March 2024 is the believed to be first product in the industry to achieve connection to storage batteries at a high DC link voltage of 1500 V. The higher voltage enables the product to be used with large-capacity storage battery facilities, which has resulted in a 40 percent reduction in the footprint of grid storage batteries compared to the conventional product.

The high power density is achieved by using Infineon's 62 mm CoolSiC MOSFET 2000 V module (FF3MR20KM1H). In addition to the characteristics of SiC that enable high voltage, better thermal dissipation and high power density, Infineon's SiC products feature M1H trench technology that increases the gate drive voltage range and provides high robustness and reliability against gate voltage spikes. Infineon was the pioneer in the industry to introduce the 2000 V class for a SiC module. This innovation has been instrumental in simplifying the inverter circuit configuration. Furthermore, the optimized 62 mm package has led to a substantial reduction in system size, contributing to enhanced efficiency and performance.

kihiro Ohori, general manager, Development Department, Energy Management System Division, Daihen, said, “In order to increase the voltage of power conditioners, the circuit configuration of conventional 1200 V devices had become complicated. However, by adopting Infineon's 2000 V SiC modules, we were able to achieve a simplified circuit configuration and control design, thereby reducing development resources and the footprint.”

Masanori Fujimori, marketing director of the Industrial & Infrastructure Segment at Infineon Technologies Japan, said, “We are very pleased that our pioneering CoolSiC 2000 V module has contributed to the development of the industry's highest power density power conditioners for grid storage batteries. We believe that Infineon's SiC technology will address the need for higher efficiency in energy storage systems and will greatly contribute to the growth of renewable energy.”



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