1. School of Electrical Engineering and Informatics Institut Teknologi Bandung Jl. Ganesha no. 10 Bandung 40132 Indonesia
2. Kantor Pusat PT. PLN (Persero) Jalan Trunojoyo Blok M – I No 135 Kebayoran Baru Jakarta 12160 Indonesia
3. Department of Electrical Engineering National Taiwan University No. 1, Sec. 4, Roosevelt Rd. Taipei 10617 Taiwan