The unit verifies the real -measurement power curve, standard (theoretical) power curve and the power curve formed on -site operation. one side.
Verifying the actual measurement power curve and theoretical power curve of the performance of the crew are mainly used to reflect the performance of the unit. The conditioning conditions are to do their best to eliminate it, and the various influencing factors that consider or do not consider the power curve.
Verifying the real measurement power curve, which is generally used in IEC61400-12 standards internationally, and its sampling cycle is 10min. In actual measurement, there are strict requirements for the environmental conditions and testing equipment on the spot, and the on -site operation crew is generally difficult to achieve. When performing power characteristics, it should also collect data with sufficient quantity and cover a certain wind speed range and atmospheric conditions. The cost and long time will cause deviations due to turbulence intensity and various other influencing factors. The value of the measured power curve is not the only one, because it is drawn from the scattered point distribution diagram like the on -site operating power curve of the unit. The measured power curve of the crew is discretely and the range is wide, which will vary depending on the measurement of the measurement and the test company. Therefore, the measured coefficient of wind utilization calculated by using the measured unit power and wind speed calculation may not only exceed 0.5, but also, it is also possible to exceed the Bez limit. Because of this, the measured power curve value is generally not used as the standard power curve on the benchmark. When designing evaluation or design authentication, the guarantee power curve provided by most domestic machine manufacturers is the theoretical power curve calculated by simulation.
Post time: Jun-26-2023
