Which universities are best for MS in power electronics field?

  You can try the below


In UK
    1-Power Electronics, Machines and Drives (MSc)
    University of Nottingham
    Department of Electrical and Electronic Engineering
    2-MSc Power Electronics, Machines and Drives
    University of Manchester
    School of Electrical and Electronic Engineering
    3-MSc Advanced Electrical Machines, Power Electronics and Drives
    University of Sheffield
    4-Department of Electronic and Electrical Engineering
    Electrical Engineering with Power Electronics
    University of Bradford
    5-School of Engineering, Design and Technology
    Electrical Engineering with Power Electronics
    University of Bradford
   
Europe -
 ETH Zurich
RWTH Aachen
TU Delft

USA  --Top schools
 1   Cornell University
2     University of Texas at Austin
3     University of Illinois at Urbana-ChampaignUIUC - Power & Energy Systems
4     University of Wisconsin-Madison
5     Ohio State University
6     University of Washington at Seattle
7     Iowa State University - Power Systems Engineering
8     CMU
9     TAMU, College Station - Electric Power & Power Electronics Program
10     Georgia Tech
11     Washington State University
12     Rensselaer Polytechnic Institute (RPI)
13     Arizona State University
14     Virgenia Tech
15     Colorado School of Mines
16     University of Utah
17     University of Tennessee at Knoxville