Large wind turbine successfully tested on a system test bench

Details: Released: 15.04.2020; Last updated: 21.08.2023; Hits: 6420

The Center for Wind Power Drives CWD the measurement campaign has one Wind turbine the most powerful so far Wind energyANlage (WAE) on his 4 MW System test bench completed. As part of the joint project Certbench the system E115 was made by enercon with a nominal output of 3,2 MW over a period of six weeks with the hardware-in-the-loop (Hil) system for rotor emulation.

With this measurement, the electrical properties of this WAE were certified according to the guidelines. The aim of the measurements was to determine what influence the models contained in the Hil system and the converter-based network emulator have on the measurement results. The Certification measurements were repeated with different model depths in the Hil system and by means of a network emulator and on the public network.

Hybrid regenerative energy generation from sun and wind

For the first time, the measurement technicians systematically analyzed the requirements for Hil systems and hardware of system test benches for the certification of wind turbines. The results obtained form the basis for determining these System test bench requirements in national and international guidelines. They represent a major milestone on the path to the certification of wind turbines on system test benches.

First test results on wind turbine

The detailed evaluation and assessment of the results of the wind turbine test are still pending. However, preliminary results already show that e.g. B. errors in the electrical network observed in the field by the Network emulator realistically reproduced on the test bench. It can also be seen that the measured electrical properties are less influenced by the models in the Hil system than expected. Rather, the controller dynamics of the Hil system play a greater role than assumed for the accuracy of the measured electrical variables on the wind turbine.

"Thanks to the close and constructive cooperation with Enercon, UL Dewi and the FGH certification body, and the tireless efforts of ours, we owe the fact that we were able to carry out this measurement campaign so successfully and were able to take a huge step closer to our goal of providing the basis for certification on system test benches Project teams, ”emphasizes dr Uwe Jassman, Head of the Certbench project.

* The Certbench project comprises the systematic validation of system test benches based on the type test of wind turbines