What are the typical communication speeds between a SCADA Master and an RTU at each turbine in a wind farm to ensure reliability of turbine control, considering turbine's mechanical response time and wind fluctuations? Wind farms have Supervisory Control And Data Acquisition systems that integrate with internal turbine controllers such as Pitch, Yaw, and Generator speed/torque closed-loop controllers. Normally a Master Terminal Unit (MTU) polls each Remote Terminal Unit (RTU) on each turbine for updates on wind measurements for which each RTU replies. The MTU then computes and updates each RTU with new pitch control, generator-speed set-points among other internal turbine controller set-points to enable a farm-wide control that optimizes wind farm power production. So, is the speed of that three-way client-server communication between an MTU at the SCADA master station and an RTU on each turbine small enough to guarantee that the turbine's closed-loop pitch or generator speed controllers can receive a set-point update from MTU, process it, and effect control quickly enough before the measured wind speed changes? In other words, what are the typical communication speeds between MTU and RTU that guarantees that the updates are useful considering that wind speed always fluctuates, and the turbine parts (blades, generator etc.) also needs some time to adjust to the new update. Also, how often are these set-point updates done
Thanks very much Mohamed. However, I read from a document that SCADA systems aren't really classified as real-time systems even though they are expected to communicate as fast as possible
- Badges
- Science topic
- Similar topics
- Physical Sciences
- Energy
- Energy-Generating Resources
- Renewable Energy