Title :
Efficiency analysis for three phase grid-tied PV inverter
Author :
Wu, Weimin ; Wang, Xiaoli ; Geng, Pan ; Tang, Tianhao
Abstract :
In this paper, the efficiency of the conventional two-level and three-level grid-connected inverter for the photovoltaic (PV) generation is analyzed. And the DC-link voltagepsilas influence on it is also studied. It can be seen that when the inverter does not control the gridpsilas frequency and voltage, a conventional three-level inverter has higher efficiency than that of a conventional two-level one, which is responsible for the better characters of lower withstand voltage devices.
Keywords :
invertors; photovoltaic power systems; power grids; photovoltaic generation; three phase grid-tied PV inverter; DC-DC power converters; Fluctuations; Frequency; Photovoltaic systems; Pulse width modulation inverters; Snubbers; Solar power generation; Switched capacitor circuits; Switches; Voltage control; DC-link voltage; Efficiency; Modulation; Power loss;
Conference_Titel :
Industrial Technology, 2008. ICIT 2008. IEEE International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-1705-6
Electronic_ISBN :
978-1-4244-1706-3
DOI :
10.1109/ICIT.2008.4608347
