For reducing the impact of ice coating on the normal operation of the low voltage power grid

a kind of ice-melting method of line based on SVG reactive power control is proposed.The method is to control the reactive power current flowing the line by the reactive power compensation so to increase the total current of the ice coating line and keep the heat generated by the line reach the heat required for melting the ice

thus achieving the purpose of ice-melting. The topological structure and working principle of the method are described in detail

the influence of ice coating on the balance of grid voltage is considered on the basis of detailed analysis of SVG control strategy and the detection circuit

the new detection circuit is constructed so to meet accuracy of each detection parameters. The simulation analysis on the ice melting system of 10 kV transmission line is performed by the Matlab. It is proved by its result that the ice-melting device can meet the demand of melting ice by accurately adjusting the reactive current.