A control method, device and readable storage medium for wind turbine failure recovery

Abstract

The invention discloses a wind turbine generator set fault recovery control method. The method comprises the steps that after a wind turbine generator set has a fault, a signal of a fault recovery command is checked; and after the fault recovery command is received, a torque given value is increased according to a preset torque change rate till relevant parameters of the set are recovered to be within a preset range, wherein the relevant parameters are active power, torque and speed specifically. According to the scheme, by increasing the torque to suppress speed rise when the wind turbine generator set has a fault, the phenomenon of "false recovery" can be avoided, the active power, speed and torque are raised in a matching mode, and eventually all the parameters are stably and rapidly recovered to a normal state. The invention furthermore discloses wind turbine generator set fault recovery control equipment and a computer readable storage medium. The control equipment and the computer readable storage medium also have the above advantages and therefore are not repeated herein.

Description

technical field [0001] The invention relates to the field of wind power generation, in particular to a control method, equipment and a readable storage medium for fault recovery of wind turbines. Background technique [0002] The wind turbine includes a wind rotor and a generator; the wind rotor is composed of blades, hubs, reinforcements, etc.; it has the functions of rotating the blades to generate electricity by the wind, and rotating the generator head. The wind power supply consists of wind turbines, towers supporting the generators, battery charging controllers, inverters, unloaders, grid-connected controllers, battery packs, etc. When the wind turbine is generating electricity, it is necessary to ensure that the output frequency is constant. This is very necessary for both wind turbine grid-connected power generation and wind-solar hybrid power generation. To ensure the constant frequency of wind power, one way is to ensure the constant speed of the generator, that ...

AI Technical Summary

Problems solved by technology

In the existing technology, the control method of quickly restoring the active power to the level before the fault is usually adopted, but the active power restored by this control method often cannot maintain the normal state, and it will quickly return to the level before the fault and then drop sharply, and then The phenomenon of slowly recovering to the level before the failure, this "false recovery" phenomenon makes the entire recovery time longer, and easily leads to unstable operation of the unit

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