Title :
A new wide input range high efficiency photovoltaic inverter
Author :
Liang, Zhigang ; Guo, Rong ; Wang, Gangyao ; Huang, Alex
Author_Institution :
Future Renewable Electr. Energy Delivery & Manage. Syst. Center, North Carolina State Univ., Raleigh, NC, USA
Abstract :
This paper investigated the requirements and future trends for photovoltaic inverter. Then a high efficiency dual mode resonant converter is proposed as the MPPT stage for photovoltaic inverter. A detailed analysis for operation features of proposed converter is given where the PV panel characteristics have been considered. The experimental results with PV panels show that the proposed converter can function as MPPT stage well and no shoot through occurs during mode transition. Also the weighted efficiency of a 2 kW DC/DC stage is around 97.7%.
Keywords :
maximum power point trackers; photovoltaic power systems; resonant invertors; MPPT stage; dual mode resonant converter; photovoltaic inverter; power 2 kW; Bridge circuits; DC-DC power converters; Grounding; Inverters; Logic gates; Switches; DC/DC converter; Photovoltaic inverter; Wide input range;
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2010 IEEE
Conference_Location :
Atlanta, GA
Print_ISBN :
978-1-4244-5286-6
Electronic_ISBN :
978-1-4244-5287-3
DOI :
10.1109/ECCE.2010.5618217
