Control method and device of frequency conversion air conditioner

The invention discloses a control method of a frequency conversion air conditioner, which comprises the steps of: acquiring special parameters; calling a preset correspondence list of the special parameters and frequency; finding out a frequency value corresponding to the special parameter according to the special parameters; and generating a pulse width modulation signal according to the frequency value. In the control method of the frequency conversion air conditioner, because the special parameters from a user are directly acquired, an operating unit finds out the frequency value corresponding to the special parameter only according to the special parameters by using the preset correspondence list of the special parameters and the frequency value, and then the pulse width modulation signal is generated according to the frequency value, thereby realizing the frequency adjustment. The control of the frequency is quicker, the working operation load of the operating unit is greatly reduced, therefore, the cont