Periodic self-inspection device and method for water-cooled heater of wind power generating set

Abstract

The invention discloses a regular self-detection device of a wind generating set water-cooling heater. The regular self-detection device comprises a detection unit (203), an execution unit (202) and acontrol unit (201), wherein the detection unit (203) is used for detecting the working state of a circuit control part of a water-cooling heater loop, and the power supply state or the working stateof the water-cooling heater (3); the execution unit (202) is used for starting the water-cooling heater (3) to conduct heating; and the control unit (201) is used for starting the water-cooling heater(3) through the execution unit (202) according to a set period, and judging whether the water-cooling heater loop is in the normal state or not according to the detection result of the detection unit, and if the water-cooling heater loop is not in the normal state, alarm information is output. According to the regular self-detection device, regular self-detection can be conducted on the water-cooling heater when the water-cooling heater is not started for a long time so that the situation that the water-cooling heater breaks down during normal using, and unnecessary economic losses are causedcan be avoided. The invention further discloses a regular self-detection method of the wind generating set water-cooling heater.

Description

technical field [0001] The invention relates to the technical field of wind power, in particular to a device and a method for periodically performing self-test on a water-cooled heater in a wind power generating set. Background technique [0002] Wind turbines are generally installed in outdoor environments with relatively harsh environmental conditions, and the ambient temperature in some areas in winter is lower than -20°C; in order to ensure the normal use of the internal equipment of the unit, heaters are used to heat the inside of the unit. [0003] The converter part of the wind turbine adopts a water circulation system for temperature control; the water-cooled heater is used to heat the water in the water circulation system, so that the water temperature in the water-cooling system is increased, thereby indirectly heating the converter. [0004] The frequency of use of the water-cooled heater is low and will not be turned on frequently; it will only be turned on when ...

AI Technical Summary

Problems solved by technology

As a result, the water-cooled heater will not be automatically turned on for more than half a year from late spring to early autumn, and there is a risk of failure, especially after half a year or more of inactivity. In the future, once the water-cooled heaters are started in batches, there will be failures in batches, resulting in the shutdown of batches of wind turbines in the wind farm, resulting in a large amount of power loss

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