Wind Turbine Converter Load Adaptation

The patent changes the parameter of maintenance timing from fixed intervals to condition-based timing. By monitoring stress indicator values and comparing them against maintenance indicator values, the system determines the actual service life of components under specific operating conditions. This allows maintenance to be performed precisely when needed, avoiding both premature replacement and unexpected failures.

The patent performs preliminary monitoring and evaluation of component stress levels before failure occurs. By continuously tracking stress indicator values and comparing them with maintenance indicator values, the system identifies the optimal replacement timing in advance. This prevents premature replacement while ensuring components are replaced before failure, eliminating unnecessary material consumption.

The patent implements a feedback mechanism that continuously monitors stress indicator values, compares them against maintenance indicator values, and provides advance warning when components approach their service life limit. This feedback loop allows maintenance to be scheduled at the optimal time, preventing unexpected failures and avoiding the additional downtime associated with unscheduled maintenance interventions.

The patent applies partial load reduction only when and where necessary to extend component service life. By monitoring actual stress levels and comparing them against thresholds, the system reduces load only sufficient to achieve the desired service life extension, rather than implementing blanket load reductions. This minimizes the impact on power output while still achieving reliability goals.