Research on Resonance Mechanism and Suppression Technology of Photovoltaic Cluster Inverter

Autor: Qingzhu Wan, Hongfan Zhang
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Energies, Vol 11, Iss 4, p 938 (2018)
Druh dokumentu: article
ISSN: 1996-1073
DOI: 10.3390/en11040938
Popis: Photovoltaic cluster power generation can improve the power generation efficiency of photovoltaic power plants, but the photovoltaic cluster inverter will produce resonance after the grid, affecting the safe and stable operation of power systems. In order to ensure the reliability of power supply, the resonant generation mechanism of photovoltaic cluster system is studied in this paper, and the resonant characteristics are analyzed, the control strategy of RC-type global resonance suppression and Thyristor Switching RC (TSRC) circuit are proposed, to suppress the resonance of the photovoltaic cluster system. The effectiveness of the control method is verified through simulation and experiment. The experimental results show that the resonance can be effectively suppressed, and the photovoltaic cluster system can be safely and stably connected to the power grid to ensure the reliability of power supply.
Databáze: Directory of Open Access Journals