Wind generating set operation control method and device and storage medium

Abstract

The invention discloses a wind generating set operation control method and device and a storage medium. The wind generating set operation control method comprises the steps that the working states ofencoders arranged on rotating shafts of variable-pitch motors which are in driving connection with blades of a wind generating set are detected separately; if the encoder on one of the blades has faults and the encoders on the other blades are normal, the variable-pitch motors on all the blades of the wind generating set are controlled to operate at the same variable-pitch speed; if energy consumption values of the variable-pitch motors on any two of the blades both meet a preset encoder redundancy operation condition within one impeller rotating period from the fault moment of the encoder onone blade, the wind generating set is made to normally operate under the working condition that the encoder on one blade has faults. By adopting the technical scheme in the embodiment, redundancy control over fault working conditions of the encoders can be realized, and electric energy production loss of the wind generating set can be reduced.

Description

technical field [0001] The present invention relates to the technical field of wind power generation, and in particular, to a method and device for controlling the operation of a wind power generator set, and a storage medium. Background technique [0002] The main function of the pitch system is to adjust the generator speed by controlling the pitch angle of the blades through the pitch motor, thereby controlling the output power of the wind turbine. The control method of the pitch system is specifically: receiving the target pitch angle sent by the main controller of the wind turbine, and according to the pitch angle change signal and the target pitch angle fed back by the encoder installed on the rotating shaft of the pitch motor, adjust the pitch angle. The speed and direction of the pitch motor are closed-loop controlled. During operation, the encoder will fail due to overheating of rotation, pulse interference, loose wiring, and the quality and life of the encoder its...

AI Technical Summary

Problems solved by technology

[0004] However, using the operation control strategy in the prior art, although the safety problems caused by the encoder failure during the operation of the wind turbine can be avoided, frequent shutdowns will also cause the loss of power generation. Therefore, how to solve the problem of encoder failure Redundant control of the situation to reduce the loss of power generation has become a technical problem that needs to be solved urgently

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