Heating and dehumidifying system of converter and control method thereof

Abstract

The invention provides a heating and dehumidifying system of a converter and a control method of the heating and dehumidifying system. The heating and dehumidifying system comprises a hardware humidity single-pole double-throw switch and a dehumidifying device, wherein a movable end of the hardware humidity single-pole double-throw switch is connected with a mains supply L line; two fixed ends ofthe hardware humidity single-pole double-throw switch are connected with power supply equipment of the dehumidifying device and power supply equipment of a controller of the converter respectively; the hardware humidity single-pole double-throw switch is used for conducting a power supply loop of the dehumidifying device when the environment humidity of the controller is larger than or equal to first preset humidity, so that the dehumidifying device dehumidifies the controller and eliminates condensation on the controller; and the hardware humidity single-pole double-throw switch is used forconducting a power supply loop of the controller when the environment humidity of the controller is smaller than second preset humidity, so that the controller can be electrified to heat and dehumidify the module. Therefore, the reliability of realizing the heating and dehumidifying functions is improved.

Description

technical field [0001] The invention belongs to the technical field of new energy wind power, and more specifically relates to a heating and dehumidification system of a converter and a control method thereof. Background technique [0002] In recent years, my country's new energy industry has continued to develop rapidly, and the installed capacity of photovoltaic and wind energy has increased year by year. Due to the lack of power transmission capacity, all the electric energy in northern my country cannot be transmitted to the south and coastal areas. Therefore, in order to solve the problem of electricity consumption in the south and coastal areas, the construction of new energy power stations has begun to tilt in the south and coastal areas. [0003] With the development of the new energy industry in the south and coastal areas, the high environmental humidity in the southern hills and coastal areas has brought great challenges to the storage and operation of converters,...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, there is a heating and dehumidification solution, which is mainly to install heaters and fans inside the converter, detect the internal state variables of the converter, and dehumidify the cabinet through air circulation, but this solution is Long-term storage without electricity in a humid environment, there may be condensation on the controller, and the controller itself may fail during power-on, which cannot ensure the realization of the heating and dehumidification function

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