Zero Steadystate Error Tracking Control on Output Current of Gridconnected Photovoltaic Power Conditioning System[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2011,50(1):58-63.
Zero Steadystate Error Tracking Control on Output Current of Gridconnected Photovoltaic Power Conditioning System[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2011,50(1):58-63.DOI:
The output current tracking control for inverter is crucial for gridconnected photovoltaic power conditioning (PVPC) system. Firstly
the work builds the threephase PVPC model and analyzes its dynamic structure
introduces the feedforward compensation strategy for grid voltage disturbance. The current closedloop system is simplified to analyze the PI control correction technology. A zero steadystate error traking technology is presented for inverter output currents to make the system output current track the gridconnected order current in real time
eliminating the effect of grid voltage disturbance. Finally
simulation and prototype experiment results validate that the control strategy is reasonable