1 VŠB – TU Ostrava, Katedra elektroenergetiky 13 Waclawek, Z 1 Wang, Y 1 Wankowicz, J 1 Wankowicz, J G - Wankowicz,+J+G 2 Warsaw University of Technology 1 Warsaw University of Technology, Institute of Control and Industrial Electronics 2 Warsaw University of Technology, Poland 1 Warycha, J