[1] Univ Kiel, Kiel, Germany
[2] Univ Kassel, Ctr Competence Distributed Elect Power Technol, Kassel, Germany
[3] Univ Maribor, Lab Power Elect, Fac Elect Engn & Comp Sci, Maribor, Slovenia
[4] ECPE, Nurnberg, Germany
[5] Polytech Univ Bari, Bari, Italy
[6] Aalborg Univ, Aalborg, Denmark
[7] Univ Kiel, Power Elect, Kiel, Germany
[8] Otto Von Guericke Univ, Power Elect, Magdeburg, Germany
[9] Lambda Phys, Gottingen, Germany
[10] Solar Energy Technol Inst, Kassel, Germany
[11] Infineon, Warstein, Germany
[12] Elect Power Supply Syst, Warstein, Germany
[13] Univ Kassel, Ctr Competence Distributed Elect Power Supply Sys, Kassel, Germany