Impact of Power Performance Optimisation on the power curve Power Normal power curve ■ Power performance optimisation ■ Wind speed Power Performance Optimisation can provide up to 1.5% increase in annual energy production. The performance upgrades as part of the Power Performance Optimisation portfolio target performance improvements on the slope of the power curve in partial load operation. pending on the specific site turbulence, the software enables the turbines to operate at higher thrust levels by adjusting the pitch angle without exceeding their design loads. Optimise the turbine’s boosting periods The fourth software upgrade, Extended Power Boost, lengthens the time in which the turbine’s power is boosted. Extended Power Boost: The software is an inbuilt control feature in Vestas wind turbines. The default software allows the turbine to boost 5% of its nominal power for five seconds when it reaches rated wind speed. The Extended Power Boost software prolongs the boosting period up to 200 seconds. In this way, the feature improves the power performance of the turbine by boosting its rated power for longer intervals. The duration of the extended boost depends on the available load margins of the turbine. Availability of Vestas’ Power Performance Optimisation: V80-1.8/2.0 MW® * V90-1.8/2.0 MW® * V90-3.0 MW® ** V100-2.0 MW® V110-2.0 MW® V112-3.45 MW® V117-3.45 MW® V126-3.45 MW® * Requires controller upgrade to VMP Global. Variable Thrust Limiter is not available for this variant. ** Requires controller upgrade to VMP Global. Variable Thrust Limiter and Extended Power Boost are not available for this variant. No load impact Wind Speed Estimator and Adaptive Wind Sensing increase the accuracy of a turbine’s pitch angle, rotor speed and yaw alignment without impacting its loads.
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