US Patent Issued to Sungrow Power Supply on July 21 for "Photovoltaic grid-connected system and control method therefor" (Chinese Inventors)

ALEXANDRIA, Va., July 21 -- United States Patent no. 12,689,218, issued on July 21, was assigned to Sungrow Power Supply Co. Ltd. (Hefei, China).

"Photovoltaic grid-connected system and control method therefor" was invented by Yuanze Zhang (Hefei, China), Jun Xu (Hefei, China) and Wei Zhao (Hefei, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A photovoltaic grid-connected system and a control method therefor. The photovoltaic inverter is connected to the grid through a synchronous motor back-to-back drive system including two synchronous motors. The photovoltaic inverter is controlled to operate in the current source mode after the photovoltaic grid-connected system is started, the synchronous motor b...