The present invention provides an electric wind machine which can restrain high harmonic current and continuously/steplessly control the input power of the motor, includes: an electric wind machine (1) having plurality of input taps; an input define unit (2) for defining the input power of the electric wind machine (1); a switch unit (7) for executing phase control for the electric wind machine (1) based on the electric wind machine input defined by the input define unit (2); and a tap switch unit (6) for switching the input taps (1ah, 1bh, 1am, 1bm) of the electric wind machine (1). The present invention is characterized in that the input of the electric wind machine (1) can be continuously/steplessly switched based on the change of the defined input by the input define unit (2). Non-fluctuant and continuous pliable stepless input control of input power can be provided when executing tap switch from control working status of some phase.