Monitoring the Performance Data of Wind Turbines

Floating Measurement Data Transmission over Considerable Distances

The performance data of wind turbines (WT) is essential for reliably assessing their efficiency. To ensure that the data can be meaningfully analyzed, it is compared with the measured values from a measuring tower erected at a greater distance, which serves as an independent reference. The performance of a WT is tested over an extended period—a finicky task for the measurement technology used that considerably benefits in this situation from high robustness and long-term stability.

Technically Challenging: Data Transmission between WTs and the Measuring Tower

Successfully recorded measurement data are usually transmitted over a distance of several hundred meters between the wind turbine and the measuring tower. Signal transmission over greater distances poses a number of challenges, such as different earth potentials or transient overvoltages. These can cause faults or even damage to measurement technology, impairing the assessment of the wind turbine.

Why Knick ?
With 480 calibrated, switchable measuring ranges and a broad-range power supply for all common supply voltages, the P27000 is the “multimeter” among signal conditioners. The series guarantees a nearly perfect and instantaneous signal transmission thanks to a gain error of < 0.08 % and a T₉₀ settling time of just 70 μs (at a cutoff frequency of 10 kHz). Moreover, the signal conditioners feature plug-in screw terminals for quick and easy assembly and a compact design.

Robust, Featuring Long-Term Stability, and Universally Applicable: The P27000 Series

Universal isolated signal conditioners of the P27000 series have proven themselves as an optimum solution for monitoring performance data. With a mean time to operate between failures (MTBF) of 3,941 years, based on field data, the series demonstrates high availability and minimizes the risk of costly interruptions in measurement series over longer periods.

Thanks to a gain error of < 0.08 % and a temperature coefficient of < 0.005 %/K of the full scale value, P27000 devices consistently deliver precise measurement results, even with strongly fluctuating ambient temperatures.