Design of a sinewave inverter for alternative energy

Author

Malengret, M.

Author_Institution

Dept. of Electr. Eng., Cape Town Univ., South Africa

fYear

1992

fDate

22-24 Sep 1992

Firstpage

95

Lastpage

98

Abstract

The authors describes the principle and design criteria adopted for a small economical, portable, robust inverter used for outdoor or remote area power supply (RAPS). Sine-weighted pulse-width-modulation (PWM) techniques applied to a push-pull inverter with a front-end filter are used. The front-end filter, using a cross-coupled choke on the low 12 V side, makes it a current fed inverter and hence suitable for starting motors. The topology offers a sinusoidal flux in the main step-up transformer, and thus a good efficiency at low loads. The cost is similar to that of push-pull center tap quasi-square inverters

Keywords

PWM invertors; 12 V; PWM; alternative energy; cost; cross-coupled choke; current fed inverter; design criteria; efficiency; front-end filter; loads; motors; outdoor power supply; push-pull inverter; remote area power supply; sinewave inverter; sinusoidal flux; starting; step-up transformer; Filters; Inductors; Power generation economics; Power supplies; Pulse inverters; Pulse transformers; Pulse width modulation inverters; Pulsed power supplies; Robustness; Topology;

fLanguage

English

Publisher

ieee

Conference_Titel

AFRICON '92 Proceedings., 3rd AFRICON Conference

Conference_Location

Ezulwini Valley

Print_ISBN

0-7803-0835-2

Type

conf

DOI

10.1109/AFRCON.1992.624426

Filename

624426