1. LUT School of Energy Systems, Laboratory of Electrical Drives Technology, LUT University, Lappeenranta, Finland
2. LUT School of Energy Systems, Laboratory of Fluid dynamics, LUT University, Lappeenranta, Finland
3. Electrical Drives, Hefei University of Technology, Hefei, China
4. LAB University of Applied Sciences, Technology, Lappeenranta, Finland
5. LUT School of Energy Systems, Mechanical Engineering, LUT University, Lappeenranta, Finland