Direct power control is a new control method of three-phase PWM converters. In this way, the internal current loop control is eliminated and the switching converter is determined, at any moment, an appropriate manner and based on the instantaneous value of the angular location vector error active and reactive power and voltage AC source. The greatest advantage of this method is to remove flow and voltage modulator control. However, variable switching frequency and the need for sampling frequency and the large inductance value is a disadvantage. In this paper, a new method for direct control of power converters based on deadbeat controller is recommended. The controller parameters are improving by Taguchi method which is a powerful technique in designing of experiments. The result show that the controller can track the desired value in different types.