Renovated circuit of frequency conversion motor

The invention discloses a renovated circuit of a frequency conversion motor, and belongs to the technical field of a frequency conversion circuit. The renovated circuit of the frequency conversion motor comprises a main power supply circuit and a frequency conversion main control circuit in connection; the main power supply circuit comprises a motor power supply circuit; the main power supply circuit also comprises a cooling fan power supply circuit; the cooling fan power supply circuit is connected with the motor power supply circuit in parallel; the cooling fan power supply circuit is connected with a cooling fan control circuit; the power supplies of the frequency conversion main control circuit and the cooling fan control circuit are both from a three-phase main power supply; the motorpower supply circuit and the frequency conversion main control circuit are both arranged in a frequency conversion cabinet; and the cooling fan power supply circuit and the cooling fan control circuit are both arranged in a