1. Sustain.RD, ESTSetúbal, Instituto Politécnico Setúbal,INESC-ID Lisboa,Department of Electrical Engineering,Setúbal,Portugal
2. Sustain.RD, ESTSetúbal, Instituto Politécnico Setúbal,CTS/UNINOVA,Department of Electrical Engineering,Setúbal,Portugal
3. ADEEA ISEL, Instituto Politécnico de Lisboa,INESC-ID Lisboa,Lisboa,Portugal
4. DEEC IST, Universidade de Lisboa,INESC-ID LIsboa,Lisboa,Portugal
5. University of Extremadura,Department of Electric, Electronic and Automation Engineering,Badajoz,Spain