Three-Phase Shunt Active Power Filter Using IGBT Based Voltage Source Inverter

Abstract

In this paper a three-phase shunt active power filter for current harmonics cancellation by injecting a current waveform in power system is proposed. Power stage of the proposed active filter is realised using three serial inductance, three-phase IGBT based current controled voltage inverter with two symmetrical capacitors on dc bus. Three independent hysteresis controllers on the base of current references are used to generate switching signals for inverter transistors. The current references are obtained by taking the difference of load current and its fundamental harmonic. For fundamental harmonic determination with no time delay a combination of digital predictive filter and low pass filter is used. The simulation and experimental results illustrate the active power performance in power system with the nonlinear load.

Tomislav Kilić

Full Professor | Department of Electrical Measurements

Full professor at the at the Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture in Split, with professional reserch focus on power quality, signal analysis in electrical power systems, and measurement of process variables, alongside a significant role in the academic and administrative life of the University of Split.

Stanko Milun

Full Professor

Faculty alumnus with a research focus in the development of measurement methods in high-voltage systems, signal analysis in electrical power systems, and the application of geoelectrical methods in energy infrastructure. Prof. Milun has been involved in numerous scientific projects, including those related to the optimization of grounding systems for high-voltage plants and the development of transient measurement methods. He has authored 38 scientific papers and over 150 professional studies.