Wind turbine simulation

Description
You're looking for a lean SCL function block that controls a wind turbine with safety logic, automatic storm shutdown, dynamic power calculation, and HMI output. It can be used directly in the Siemens TIA Portal.

Note: All modules are designed exclusively as a learning and optimization basis and are not approved for live operation. System modules, in particular, must be finally tested and commissioned by qualified personnel before productive use.

How it works

• Emergency stop active or wind > 25 m/s → Generator_ON off, Brake_ACTIVE on, Power_Percent = 0, set alarm
• Wind between 3 m/s and 25 m/s + release active → generator running, brake released
• Calculate power linearly:
  • 3 m/s → 0%
  • 20 m/s → 100%
• linearly interpolate between
• Wind > 20 m/s and ≤ 25 m/s → Power_Percent = 100%
• In all other cases → Brake_ACTIVE, Generator_ON off
• Acknowledgement → Reset alarm

Technical details
• Inputs: Emergency stop, release, wind speed, acknowledgement
• Outputs: Generator_ON, Brake_ACTIVE, Alarm, Status_HMI, Power_Percent
• Linear characteristic curve between 3 m/s and 20 m/s
• RETURN in case of security violation for immediate logic termination
• Clearly named and commented variables

Possible applications
• Onshore and offshore wind farms
• Training and demonstration facilities
• Retrofit projects for existing systems

compatibility
• Siemens S7-1200 & S7-1500
• TIA Portal ≥ V13; recommended V16+ with PLCSIM for HMI tests

Scope of delivery
• .scl file with input/output declarations, variables, performance curve and section comments
• Header: Version 1.0, as of June 19, 2025, Author, Website, Email

Support
I can customize performance curves, integrate additional sensors, or expand HMI features and logging/remote monitoring. Contact me via shop message or email for customized solutions.