Device for ice melting of wind turbine blades

The invention discloses a device for ice melting of wind turbine blades. The device comprises a wind turbine, a wind turbine side bidirectional converter, an accumulator ice melting device and a load. The wind turbine is connected to a bus by the wind turbine side bidirectional converter; the wind turbine side bidirectional converter is formed by serially connecting a wind turbine rectification AC/DC converter (1) with a DC/AC inverter (2); an accumulator is connected between the wind turbine rectification AC/DC converter (1) with the DC/AC inverter (2); and the ice melting device and the load are connected to the bus.