There are many reasons why wind turbines fail, involving mechanical, electrical, environmental and other aspects. The following are some common causes of failure and their solutions:
Mechanical failure
1. Bearing failure
Reasons:
① Wear caused by long-term operation
② Insufficient or deteriorated lubricating oil
③ Improper installation or deformation of bearing seat
Solutions:
① Check the lubrication of the bearing regularly and replenish or replace the lubricating oil in time.
② Pay attention to the accuracy and matching clearance of the bearing during installation to ensure correct installation.
③ Replace the severely worn bearings, check whether the bearing seat is deformed, and repair it in time.
2. Blade damage or breakage
Cause: Long-term exposure to wind and operating loads, severe weather
Solution:
① Regularly check the integrity and damage of the blades, and repair or replace damaged blades in a timely manner.
② Strengthen monitoring and maintenance under severe weather conditions to ensure the safe operation of wind turbines.
Electrical Failure
1. Generator winding failure
Reason: Overload operation, winding insulation aging, voltage fluctuation
Solution:
①Regularly check the electrical parameters and insulation of the generator, and repair or replace damaged windings in time.
②Protect the generator from overload to avoid long-term overload operation.
2. Controller failure
Reason:
①Electromagnetic interference
②Controller hardware damage
③Software program error
Solution:
①Electromagnetic shielding of the controller to reduce the impact of electromagnetic interference.
②Regularly check the hardware and software status of the controller, and repair or replace damaged parts in time.
③Update and optimize the control program to ensure its stability and reliability.
Other faults
1. Severe shaking
Reason:
① Loose bolts on the generator base
② Deformation or jamming of blades
Solution:
① Regularly check and tighten the bolts on the generator base.
② Repair or replace deformed blades to ensure the integrity and balance of the blades.
2. Ineffective adjustment
Reason:
① Damage to the pressure bearing at the upper end of the fan column (or tower)
② Long-term lack of maintenance causes aging and hardening of butter
Solution:
① Regularly check and replace damaged pressure bearings.
② Regularly maintain the fan to ensure that lubricants such as butter are sufficient and in good condition.
In summary, the causes of wind turbine failure are complex and diverse, and comprehensive measures need to be taken to prevent and solve them. The reliability and power generation efficiency of wind turbines can be effectively improved through regular inspection, maintenance, optimized design and the use of new technologies.