With the continuous development of renewable energy, wind power has become an important energy source**. In the pitch system of wind turbines, magnetostrictive displacement sensors play an important role as an important sensor. This article will introduce the application of magnetostrictive displacement sensors in the pitch system of wind turbines.
1. The working principle of the magnetostrictive displacement sensor.
A magnetostrictive displacement sensor is a type of sensor based on the magnetostrictive effect, which detects the displacement of an object by measuring the change in the magnetic field. When the magnetic field changes, the magnetostrictive material creates a strain that changes the direction and strength of the magnetic field to detect the displacement of the object. Magnetostrictive displacement sensors have the advantages of high accuracy, good stability and high reliability, so they are widely used in wind turbine pitch systems.
2. Application of magnetostrictive displacement sensor in wind turbine pitch system.
The wind turbine pitch system is an important part of controlling the power output of the wind turbine, which adjusts the angle of the blades to adapt to different wind speeds and power requirements. In the pitch system, the magnetostrictive displacement sensor is mainly used to detect the rotation angle and position of the propeller, and transmit the detected signal to the control system, which adjusts the angle of the propeller according to the received signal, so as to control the power output of the wind turbine.
The applications of magnetostrictive displacement sensors in wind turbine pitch systems are as follows:
1.Angle detection: Magnetostrictive displacement sensors detect the angle of rotation and position of the propeller by measuring changes in the magnetic field. When the blades rotate, the sensor senses a change in the magnetic field and converts this change into an electrical signal that is transmitted to the control system. The control system judges the angle and position of the propeller according to the received signal, so as to adjust the angle of the propeller.
2.Safety detection: Magnetostrictive displacement sensors can also be used to detect the safety of paddles. If the blades are cracked, worn, etc., the magnetic field of the sensor will change abnormally, and the sensor will convert this change into an electrical signal and transmit it to the control system, which will send an alarm signal and take corresponding measures to ensure the safe operation of the wind turbine.
3.Fault diagnosis: Magnetostrictive displacement sensors can also be used for fault diagnosis. If the wind turbine fails, the magnetic field of the sensor will also change abnormally, and the control system can judge the type and location of the fault according to the received signal, so as to take corresponding measures for repair and maintenance.
III. Conclusion. Magnetostrictive displacement sensors play an important role in the pitch system of wind turbines, which can improve the efficiency and safety of wind turbines and reduce maintenance costs. With the continuous development of renewable energy, the application prospect of magnetostrictive displacement sensors in the pitch system of wind turbines will be broader.