1. Department of Applied Sciences, University of Quebec at Chicoutimi, 555, Bld. De l'Université, Chicoutimi, QC, Canada G7H 2B1; e-mail: {, , }
2. Department of Electrical Engineering, University of Nevada, Reno, USA;
3. Opal-RT Technologies, 1751 Richardson, Suite 2525, Montreal, QC, Canada H3K 1G6;