Voltage inverter with push-pull topology to inject energy into electrical systems with modulation spwm

Abstract

his paper presents a proposal for a voltage inverter topology based on the push-pull converters, high-frequency switching to inject energy into the grid from a source of DC power. A system using two reverse voltage static converter provides the power grid, energy in the form of alternating current that can work in conjunction with the utility supply of energy with a view to possible use of renewable energy sources that can be stored in the form of voltage continuous, such as wind, solar, hydroelectric and others. It is shown the operation of the topology, power and control circuits, as well as design of components, theoretical and practical results achieved by mounting a prototype of 100W of power and switching in 40Khz, which after filtering provides the frequency of 60Hz is compatible with the Brazilian electrical system.