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