A two-stage, grid-connected PV inverter, and its control method are proposed in this paper. By controlling the DC link voltage at the front stage and the PWM of the inverter circuit at backstage, an LCL-type PV three-phase grid-tied inverter system is established. The paper analyzes the inverter output by this control system and compares it with the PV output power on the DC link voltage and current for maximum power tracking. The results indicate the proposed method has an excellent performance from the PV modules, the output power is always very stable, and the total harmonic distortion is very small. The current and voltage generated at the output end of the inverter have fast dynamic response, smooth waveform and strong stability.
Control Method of Two-Stage Grid-Connected PV Inverter System
Lect. Notes Electrical Eng.
International Conference on Robotics, Vision, Signal Processing and Power Applications ; 2021 April 05, 2021 - April 06, 2021
Proceedings of the 12th International Conference on Robotics, Vision, Signal Processing and Power Applications ; Chapter : 6 ; 43-51
2024-03-31
9 pages
Article/Chapter (Book)
Electronic Resource
English
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