Transmisson line is important access to electricity transmission, the failure of its Icing will have inevitable effect on the security and stability of Power Grid. As a result,only by adopting AC/DC Ice-melt- ing technology on time which is based on heat-melting, can the negative effect to Icing lines be avoided or reduced. In the application process of AC/DC Ice-melting, the power supply of AC/DC Ice-melting is cru- cial. System sources and AC/DC Ice-melting equipment constitutes the Power supply, at the same time, the difference and adaptation of AC/DC Ice-melting sources are analysed, which...