Find out how Delfos identified a critical fault in a wind turbine pitch system after maintenance, preventing losses of up to 500 MWh per month.
The Context
Successful maintenance on wind energy assets depends on comprehensive monitoring before and after interventions. This proactive monitoring is essential for anticipating problems and ensuring that maintenance procedures achieve their objectives.
In a recent case, Delfos' intelligent monitoring platform detected anomalous behavior in a wind turbine's pitch system the day after scheduled maintenance. This anomaly led to an 87% reduction in the wind turbine's performance, indicating that the pitch system was not operating correctly after the maintenance.
The Solution
Data analysis at Delfos revealed points outside the expected operating limits for the pitch system, showing a clear loss of efficiency. An automatic alert was generated, allowing the field team to quickly identify the problem and carry out a new intervention. Rapid detection prevented the fault from continuing to impact the wind turbine's energy production.
Figure 1 - Pitch system with anomaly with points outside operational limits in red
Figure 2 - 80 percentage point reduction in the performance indicator
potential loss of performance
potential energy loss avoided by correcting the fault
critical asset coverage
Results:
During the period of malfunction, the wind turbine lost up to 500 MWh per month, which would have been a significant loss if it hadn't been resolved promptly. Delfos enabled a rapid response, allowing the team to correct the fault and restore the equipment's performance.
Conclusion:
Cases like this, where maintenance failures impact production, show the importance of continuous and intelligent monitoring. With Delfos' solutions, it is possible to identify non-conformities quickly and avoid significant energy losses, guaranteeing the operational and structural integrity of the assets.
Benefits:
- Fast fault detection after maintenance;
- Prevention of losses of up to 500 MWh per month;
- Agile restoration of wind turbine performance.
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