Capacitive idling techniques improve inverter performance

Author

Knight, Joseph ; Shirsavar, Seyed Ali ; Holderbaum, William

Author_Institution

Dept. of Electron. Eng., Reading Univ., UK

Volume

2

fYear

2004

Firstpage

638

Abstract

In this paper the authors present two new and closely related inverter topologies intended for use in photovoltaic (PV) systems. The topologies improve inverter performance by allowing true DC-AC inversion with very little distortion in both the DC and AC currents whilst minimising switching noise. The two topologies are based upon a novel form of Cuk converter, called the capacitive idling converter (R. Mahadevan, et al., 1983), which utilises an extra switch to improve its bandwidth, allow soft switching and independent control of input and output currents. In addition, to further improve the robustness, hysteresis control has been utilised.

Keywords

DC-AC power convertors; electric current control; invertors; photovoltaic power systems; power capacitors; reliability; robust control; switching convertors; Cuk converter; DC-AC inversion; bandwidth improvement; capacitive idling converter; current control; current distortion; hysteresis control; inverter topology; photovoltaic system; reliability; robustness; soft switching noise minimisation; solar inverter;

fLanguage

English

Publisher

iet

Conference_Titel

Power Electronics, Machines and Drives, 2004. (PEMD 2004). Second International Conference on (Conf. Publ. No. 498)

Conference_Location

Edinburgh, UK

ISSN

0537-9989

Print_ISBN

0-86341-383-8

Type

conf

DOI

10.1049/cp:20040363

Filename

1350098