Title :
A combined voltage controlled and current controlled "dual converter" for a weak grid connected photovoltaic system with battery energy storage
Author :
Dehbonei, Hcoman ; Nayar, Chem ; Borle, Lawrence
Author_Institution :
Sch. of Electr. & Comput. Eng., Curtin Univ. of Technol., Bentley, WA, Australia
Abstract :
In this paper, a novel power converter capable of extracting maximum power from solar photovoltaic panels is described. It employs a combination of a voltage controlled voltage source inverter and a current controlled voltage source inverter, connected in series on the DC side and in parallel on the AC side. This dual converter is able to provide uninterruptible power supply feature, load voltage stabilisation, unity power factor operation, maximum power point tracking as well as reactive power support. The overall efficiency of the proposed converter is higher than the conventional system with a DC-DC converter between the PV panels and the battery.
Keywords :
DC-AC power convertors; DC-DC power convertors; invertors; load (electric); photovoltaic power systems; secondary cells; solar cell arrays; uninterruptible power supplies; DC-DC power converter; PV panels; battery; load voltage stabilisation; maximum power extraction; maximum power point tracking; reactive power support; solar photovoltaic panels; uninterruptible power supply; unity power factor operation; voltage source inverter; Batteries; Control systems; DC-DC power converters; Energy storage; Inverters; Photovoltaic systems; Reactive power; Solar power generation; Uninterruptible power systems; Voltage control;
Conference_Titel :
Power Electronics Specialists Conference, 2002. pesc 02. 2002 IEEE 33rd Annual
Print_ISBN :
0-7803-7262-X
DOI :
10.1109/PSEC.2002.1022387
