Abstract

Under the condition of asymmetric fault of power grid, the voltage of power grid has negative sequence component, which seriously affects the quality of output voltage and current of grid-connected inverter. Based on the analysis of model and control strategy of grid inverter under asymmetric fault, this paper studied the influence on the output voltage, the output current and the voltage on DC bus made by negative sequence component, revealed the mechanism of grid inverter output current harmonic component and quantitative analysis of each order harmonic, put forward the measurements to restrain the harmonics and voltage fluctuation on DC bus. The effect of negative sequence voltage and the mechanism of harmonic generation are validated by PSCAD simulation and results.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.