According to theoretically equivalent principle, the space vector pulse width modulation technique was equivalent to zero sequence component injected sinusoidal pulse width modulation (SPWM). Zero vector assignment factor K0 was introduced in SPWM, and with K0 contributing zero-vector U0 and U7 action time, special zero-vector PWM modulation methods could be obtained. According to the advantages and disadvantages on the control of the mentioned modulation methods, a combination of random zero-vector distribution PWM (RZDPWM) modulation method was proposed. The zero vector of the method was converted from a specific pattern to a random pattern followed by a real-time change with K0. With modulation m, the modulation wave was process in segmentations, which could effectively reduce the power device switching losses, the total harmonic distortion and the system electromagnetic interference. Finally, with MATLAB simulation, the proposed method’s advantages were validated.