In this paper, a novel single-stage single-phase transformer-less buck-boost inverter is proposed, in which a reduced number of passive components is used. The proposed inverter combines the conventional buck, boost, and buck-boost converters in one converter in order to obtain a sinusoidal output voltage. In the proposed inverter, the input DC source and the load or grid have the same ground. Therefore, the leakage current problem in photovoltaic (PV) systems is eliminated. Furthermore, the proposed inverter supports the bi-directional power flow capability and it can inject reactive power to the load or the grid. The analysis, principle of operation, and modulation of the proposed inverter are introduced in this paper, where simulation results using MATLAB/Simulink models in both islanded and grid-tied modes of operation are shown.
|Titel||Proceedings of 43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017|
|Status||Udgivet - okt. 2017|
|Begivenhed||43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017 - Beijing, Kina|
Varighed: 29 okt. 2017 → 1 nov. 2017
|Konference||43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017|
|Periode||29/10/2017 → 01/11/2017|
|Sponsor||Chinese Association of Automation (CAA), Chinese Power Supply Society, et al., IEEE Industrial Electronics Society (IES), Systems Engineering Society of China, The Institute of Electrical and Electronics Engineers (IEEE)|