H-Bridge Converter as single-phase, grid-coupled DC AC Converter

Relevance

The motivation for using a grid-coupled H-bridge, especially in power electronics and renewable energy systems, stems from its ability to efficiently manage and convert electrical power. The key reasons for its use is an efficient Power Conversion: H-bridges are commonly used for DC-to-AC conversion (inversion) in grid-connected applications, providing an efficient way to convert DC power from sources like solar panels or batteries to AC power suitable for the grid.

By efficiently interfacing renewable energy sources with the grid, H-bridge inverters enable the integration of sustainable power into existing electrical infrastructure, supporting the transition to cleaner energy systems

Abstract

This section focuses on the H-Bridge converter, a versatile topology used as a single-phase, grid-coupled DC/AC converter. Also known as an H4 or Full Bridge, this configuration includes two inverter legs and supports four-quadrant operation. Initially, it is explored as a DC/DC converter with various modulation possibilities. As a DC-AC converter, the same topology is applied with a focus on slowly modulating a sinusoidal waveform, accounting for ripple at twice the mains frequency.