A New Pulse Width Modulation Technique for Inverters

The pulse width modulation (PWM) technique is a method to control the modern power electronics circuits. The basic idea is to control the duty cycles of the switches in such a way that a load sees a controllable average voltage. In this paper, for single-phase and three-phase inverters, a new modulation method based on PWM technique is proposed. The proposed method can generate the desired output voltages from regulated and unregulated input voltage. In three-phase inverters, using the proposed control method, it is possible to produce the desired balanced and unbalanced output voltages. Low value of total harmonics distortion and elimination of low-order harmonics are other advantages of the proposed control method. The simulation and experimental results of single-phase and three-phase inverters are used to prove the correctness operation of proposed control method in generation of desired output voltages.