(1) It is connected between DC busbars and adopts IGBT to control input or not.

(2) It is mainly used to suppress the DC busbar's overvoltage, realize the converter's protection, and achieve the high and low-voltage ride-through function in case of an abnormal power grid.

(1) The converter belongs to a piece of relatively precise equipment. It is very easy for condensation to form inside the converter in a high-humidity environment or after a long-term power failure, resulting in shortened insulation distance.

(2)  The converter software sets that the dehumidification function is enabled after the board is powered on again after it is powered off for a certain period. The heating film is driven to heat when the large temperature difference between the module and the air, anti-condensation and high humidity trigger the conditions. The duration of heating is related to that of power failure.

(1) It is connected between DC busbars and adopts IGBT to control input or not.

(2) It is mainly used to suppress the DC busbar's overvoltage, realize the converter's protection, and achieve the high and low-voltage ride-through function in case of an abnormal power grid.

Yes, the Hopewind converter has been successfully applied in the high-altitude wind power plants of 3,000m, 4,000m and 5,000m, distributed in Yunnan Province, Qinghai Province, Ningxia Hui Autonomous Region, Guizhou Province and the Tibet Autonomous Region, etc.

Hopewind converter can cover a comprehensive range of voltage grades, including 690V, 900V, 950V, 1,140V, 1,380V and 3,300V. The maximum power of the Hopewind doubly-fed converter can reach 7.XMW, and that of a full power converter can reach 24MW.