Implementation of grid-connected micro solar inverter design based on C2000 MCU

微盟ME2188A33PG

Kaixin micro test ESD18VB03-0201

The rapid development of renewable energy applications will trigger the fourth industrial revolution. Photovoltaic power generation is a key part of the overall renewable energy programme. Among all solar inverters, miniature solar inverters are a vital component.

This article will show you how to design a low-cost, high-performance miniature solar inverter using a TMS320F2802. In addition, the article will discuss how to implement a 220W output miniature solar inverter using a crossover active clamp flyback and SCR full bridge, and introduce the complete system firmware architecture and control method. Finally, the article will show you the lab waveforms.

1 Overview

1.1 Solar Inverter Introduction Materials, energy and information are the three major elements of human survival and development. Every new discovery of energy use will greatly change and promote the development of modern civilization:

The invention of the steam engine allowed us to enter the machine age.
The invention of electricity allowed us to enter the electrical age.
The invention of semiconductor transistors allowed us to enter the information age.


The current development and utilization of renewable energy will trigger the fourth industrial revolution; among all renewable energy utilization methods, photovoltaic power generation is a key component of the development of the entire renewable energy. According to the World Energy Organization, as traditional energy sources (such as coal, oil, etc.) are gradually depleted, renewable energy will become the main source of energy for human beings. Figure 1 shows the development trend of the world's energy.

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