“…The hypothesis of perfectly balanced three-phase network, in fact, cannot be achieved in real power systems. Nonetheless, the great number of publications is chiefly focused on the distribution networks (some considerable examples are [1][2][3][4][5][6][7]). This fact is mainly due to the unbalanced distribution load configurations, the typical low voltage four-wire distribution system structures, and the growing presence of distributed generation [1][2][3][4].…”