Powerful 1,500VDC string inverter bring high capacity

Supporting a high voltage of 1,500V_DC and 800V_AC, the Sungrow SG250HX string inverter offers a maximum of 99% efficiency.

“Sungrow is dedicated to paving the way for grid parity across Europe with growing technical innovations. We are accelerating our global step to fulfill the corporate mission of ‘clean power for all’,” said Stefan Froboese, Technical Director at Sungrow Europe. “In this regard, we are excited to bring forth another disruptive string inverter technology to Europe, maximizing ROI for our customers at unforeseen levels.”

Dr Peter Wawer, President of the Industrial Power Control Division of Infineon, added: “We are very proud to support Sungrow’s goals with our new EasyPACK 3B power module, which was just recently launched at PCIM 2019. Combining our Si and SiC chip technologies, this is another proof point for our strategy to turn from product thinking to system understanding. Proprietary know-how and production capacity in frontend and backend puts us in the position to realize customer specific solutions within months.”

Weighing only 95kg with a dimension of 1,051x660x363mm³ the Sungrow SG250HX boasts a power density of approximately 1,000W/liter. This not only makes it the most powerful inverter but also one with leading power density.

Thanks to Infineon’s new technologies, the heat sink can be reduced in both size and weight significantly. Additionally, the Infineon products also enable weight savings by reducing the passive components through increasing switching frequency.

The system features twelve MPPTs (Maximum Power Point Tracking) and a flexible block design allowing for up to 6.3MW blocks. This makes it an ideal solution for utility scale photovoltaic applications. With smart forced air-cooling technology, the SG250HX can operate at extremely high temperatures without derating.