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

Volume

3

fYear

2002

fDate

2002

Firstpage

1495

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2002. pesc 02. 2002 IEEE 33rd Annual

Print_ISBN

0-7803-7262-X

Type

conf

DOI

10.1109/PSEC.2002.1022387

Filename

1022387