Turbines are comprised of many subsystems working in unison so that the turbine efficiently and safely produces power. ABB products are used throughout these subsystems, from the emergency stop button to the generator.
This system is the main electrical production system of the turbine and is comprised primarily of the generator and converter, as well as the stator contactor and breaker.
This system is responsible for connecting power produced from an individual turbine to the wind power plant’s network connection point (connection to the power collection system). This includes the turbine’s transformer and switchgear components.
This system is responsible for turbine control and operation, including rotor speed, turbine orientation, startup and shutdown. The protection function guards against conditions such as over-speed, generator overload, and even excessive vibrations.
The yaw system orients the turbine by rotating the nacelle into the desired position. This system uses motors and gears for the rotation, and braking systems to retain the orientation. The pitch system controls the orientation of the turbine blades in relation to the wind.
The protection system ensures that the turbine’s electrical subsystems are protected against unsafe conditions resulting from fault conditions, and isolates those failures from other electrical systems in the turbine. The electrical disconnect system exists to ensure that the turbine’s electrical system can be disconnected safely allowing for maintenance and other in-turbine work.
This system protects the turbine’s electrical systems from adverse effects caused by lightning strikes on the turbine.
These systems are responsible for ensuring the flow of liquids and air used in the turbine. These may include liquid-cooling systems, heat-exchange systems, or braking systems.
Auxiliary systems are any other system or subsystem within the turbine that do not fall within one of the mentioned systems.