In 2021, our company added 7 new authorized invention patents

I. 2021.01.08 Obtained the invention patent of "A method and control device for starting a power frequency inverter motor" (Patent No. : ZL 2019 1 0225473.4)

Ⅱ. 2021.04.06 Invention patent for "A wind power generation unloading circuit and unloading control method" (Patent No. :ZL 2019 1 0237681.6)

Ⅲ, 2021.07.09 Obtained the invention patent of "an island detection method and island detection system" (Patent No. : ZL 2019 1 1015412.1)

Ⅳ, 2021.07.20 Obtained the invention patent of "a control method and device of inverter" (patent number: ZL 2019 1 0465394.0)

V. 2021.07.30 Obtained the invention patent of "An auxiliary power supply circuit" (Patent No. : ZL 2019 1 0857317.X)

Ⅵ. 2021.09.14 Obtained the invention patent of "Wind turbine output current and output power control method and corresponding control device" (Patent number: ZL 2020 1 0330193.2);

Ⅶ. 2021.09.21 Obtained the invention patent of "Wind power grid-connected inverter and its control method" (Patent No. : ZL 2019 1 1345576.0)