High efficiency THIPWM three-phase inverter for grid connected system

• Main Authors: Younis M.A.A., Rahim N.A., Mekhilef S.
• Other Authors: 56501517900
• Format: Conference paper
• Published: 2023
• Subjects: Inverters parallel connection; Third harmonic injection PWM; Three-phase inverter; DC power transmission; Electric connectors; Harmonic distortion; Industrial electronics; Wave filters; Ac power; Dc power; DC-AC inverters; Developed model; Grid connected systems; Grid connections; Grid voltage; High efficiency; Parallel-connected; Three phase; Total harmonic distortions; Voltage source; Harmonic analysis

This paper presents a grid connected system. Three phase DC-AC inverters used to convert the regulated DC power to AC power suitable for grid connection. Third harmonic injection PWM (THIPWM) was employed to reduce the total harmonic distortion and for maximum use of the voltage source. DSP was used to generate the accurate THIPWM for grid connection, by synchronizing the inverter voltage with the grid voltage. The application of THIPWM to parallel connected inverter reduces the total harmonic distortion and increases efficiency of the inverter. Experimental results validate the developed model and the proposed system. �2010 IEEE.