Title :
Comprehensive compensation of grid current distortion by shunt active power filters
Author :
Cichowski, A. ; Sleszynski, W. ; Nieznanski, J.
Author_Institution :
Fac. of Electr. & Control Eng., Gdansk Univ. of Technol., Gdansk, Poland
Abstract :
The paper presents a comprehensive approach to the compensation of grid current distortion in shunt active power filter systems. Four sources of current distortion are addressed: imperfect grid synchronization caused by the distortion in the grid voltages, time delays in the evaluation of grid voltages and computation of compensating currents, fluctuations of the dc bus voltage, and the distortion of inverter output voltages due to dead-time effects and related factors. The focus of the paper is on the assessment of the significance of the proposed improvements in the control algorithm for the reduction of harmonic distortion of grid currents.
Keywords :
active filters; electric current control; power harmonic filters; power system control; predictive control; compensating current computation; control algorithm; dead time effects; grid current distortion compensation; grid voltage; harmonic distortion reduction; imperfect grid synchronization; inverter output voltage distortion; shunt active power filters; time delays; Delays; IIR filters; Integrated circuits; Switches; Total harmonic distortion; Voltage control; dead time compensation; power conditioning; shunt active power filter;
Conference_Titel :
Nonsinusoidal Currents and Compensation (ISNCC), 2015 International School on
Conference_Location :
Lagow
DOI :
10.1109/ISNCC.2015.7174711
