This paper investigates the possibility of applying medium-voltage modular multilevel converters in 5-MW onshore wind turbines. The focus is on the reduction of higher order harmonics in comparison to classical 3-level medium-voltage converters. The simulation of the 7-level 5-MW converter shows that the harmonic limits in accordance with the actual grid codes can be met without an additional grid side filter. The paper starts with a description of the detailed grid and converter model parameters, followed by the grid compatibility simulation according to the standard grid codes. Subsequently, a setup of a 3-kV 350-kVA MMC demonstrator with commonly used low-voltage components is presented which will afterwards serve to verify the simulation results.
- About
- Team
- Professors
- Research associates
- Blohm, Marina
- Boie, Wulf
- Büttner, Clara
- Cußmann, Ilka
- Dettner, Franziska
- Fleischer, Christian
- Freißmann, Jonas
- Fritz, Malte
- Hackenberg, Tabitha
- Hasan, Mominul
- Hilpert, Simon
- Irmansyah Siregar, Yudha
- Laros, Simon
- Md Nasimul Islam Maruf
- Müller, Ulf Philipp
- Sadat, Fahim
- Vanegas-Cantarero, Maria-Mercedes
- Weber, Samanta Alena
- Wiechers, Eva
- Witte, Francesco
- Former colleagues
- Research
- Publications