Infineon technology powers Sungrow’s PV string inverter solution

Article By : Infineon Technologies AG

Sungrow's inverter integrates Infineon's customized EasyPACK power modules equipped with the newly released CoolSiC MOSFETs.

With the launch of the latest 1,500V PV string inverter SG350HX, Sungrow offers a new market leading solution that features a maximum output power of 352kW—a 40% increase in its previous generation inverter.

Enabling this performance boost are Infineon Technologies AG’s customized EasyPACK power modules equipped with the newly released CoolSiC MOSFET, the latest generation CoolSiC diode, along with the latest TRENCHSTOP chip technologies.

“Sungrow is dedicated to paving the way for global carbon neutrality with growing technical innovations. We are accelerating our steps to fulfill the corporate mission of ‘Clean power for all’,” said James Wu, Vice President of Sungrow. “To make this possible, the new SG350HX redefines the super-high power string inverter and helps Sungrow’s customers to reduce the cost of energy.”

“We are very pleased to continue our successful collaboration with Sungrow and leverage our technology expertise in the area of renewable energy,” said Dr. Peter Wawer, President of the Industrial Power Control Division of Infineon. “Leveraging our expertise on technology and production allows us to tailor solutions based on customer needs while giving full support during ramp-up.”

The inverter supports a DC/AC ratio of up to 1.8 and is highly compatible with 182mm and 210mm large-sized high-efficiency modules with a maximum input current of 20A. This allows to use solar modules with power ratings of 600W and higher. The device can operate stably in extremely weak grid conditions.

Weighing only 110kg, the inverter features twelve MPPTs (Maximum Power Point Tracking) at 40A. With two strings connecting to one MPPT, there is no threat of a string reverse connection. Each one helps to increase the power density by approximately 28% compared to the previous generation. Thanks to smart-forced air-cooling technology and IP66 protection, the solution can be installed in harsh conditions.


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