Simulation of power converter control system with compensation of harmonic distortion in output voltage waveform

This article is devoted to the simulation of control system for power converter with voltage-source inverter and sine-filter. The control system is designed with active harmonics filtering and can produce output voltage with less than 5% THD under RL- or non-linear load. This paper describes the structure of the control system and its implementation in Simulink environment of MATLAB. The advantages of the software harmonic compensation are shown. The simulation results confirm the efficiency of control method. The working algorithm is suitable for software implementation in the real-time control system.