Introduction:
As a crucial component of wind power generation, the pitch system directly influences the absorption efficiency of wind energy and the overall safety of wind turbines. The electromagnetic brake, a core component of the motor, plays a particularly significant role. This article delves into the importance of electromagnetic brakes in enhancing system performance and safety in wind turbine pitch systems, highlighting their critical functions under various operating conditions.
Basic Structure and Working Principle of the Brakes:
Wind turbine pitch motors commonly employ spring-loaded electromagnetic safety brakes, also known as electromagnetic holding brakes or electromagnetic brakes. These are friction-type DC electromagnetic brakes that operate under dry conditions. They are capable of rapidly applying emergency brakes to the motor shaft in the event of power loss or maintaining a braking state after normal operation shutdown. Their advantages include compact structure, rapid response, smooth braking, stable and reliable performance, easy installation and maintenance, long lifespan, and low noise.
Brake Requirements under Wind Turbine Pitch Operating Conditions:
Brake Start-Stop Time Efficiency
Brake Friction Disc Fatigue Wear
Stability of Motor Braking Torque: Due to safety requirements during pitch operation, the brake must have stable braking torque.
Thermal Stability of the Brake and Motor: In the elevated temperatures during pitch motor operation, considering the direct installation of the brake on the motor, the impact of motor temperature on brake operation temperature needs to be addressed.
Brake-generated heat also affects motor temperature rise, so the thermal stability of the brake must be maintained within an acceptable range of motor temperature rise.
To ensure the stable application of electromagnetic brakes in wind turbine pitch systems, REACH MACHINERY has comprehensive type tests, including:
Vibration time tests
Static life tests
Spring life and spring force tests
Friction plate wear and impact tests
High and low-temperature tests, and more.
Additionally, before leaving the factory, our products undergo thorough testing, including emergency stop tests under load, static life tests, thermal shock tests, humidity resistance tests, electromagnetic compatibility tests, strong pull tests, response time tests, and others. This rigorous testing series guarantees the stable and reliable application of electromagnetic brakes from REACH MACHINERY in wind turbine pitch systems.
Furthermore, we employ a modular design, allowing users to choose different accessories based on the specific conditions of different types of wind farms, providing customized solutions for our customers.
Post time: Dec-13-2023