Design, development and prototype assembly of a micro inverter photovoltaic meeting the requirements of the Brazilian NBR 16149:2013, NBR 16150:2013 and IEC 62116:2012

• Grant number: 15/22736-4
• Support Opportunities: Research Grants - Innovative Research in Small Business - PIPE
• Start date: July 01, 2016
• End date: May 31, 2017
• Field of knowledge: Engineering - Electrical Engineering - Power Systems
• Principal Investigator: Felipe de Oliveira de Araujo
• Grantee: Felipe de Oliveira de Araujo
• Company: Nexlab Soluções Tecnológicas Ltda. - ME
• City: São Paulo

Abstract

One of the main promises of technology that come promising to make accessible to anyone using photovoltaic systems connected to the grid has been the use of so-called micro inverters. Plus they have a longer life (expected 25) when compared to other central inverters/string (expected 7 years) SFCRs design methodology offers features like 1) easy installation; 2) long service life; 3) production 25% more energy compared to other methodologies SFCRs projects [6]; 4) safer. Despite all these benefits there is a micro inverters not commercially certified and meets the international standards difficulties imposed on control algorithms and firmware development. This work plan sets out key steps to developing a micro inverters applied to photovoltaic connected to grid systems meeting the requirements of the standards Brazilian NBR 16149:2013, NBR 16150:2013 and IEC 62116:2012 using the open API Solantro and your chipset. The proposal is divided into seven phases, which are explained possibilities of working with different converter topologies using the chipset Solantro to control, analyze situations and implementation of controls to facilitate the work of the micro inverters both autonomous as connected the grid, and the device test phase already mounted, especially focus on developing control algorithms to the chipset Solantro using its Open API. The system chosen intends to work with continuous input voltage of 30V to 60V to provide an effective voltage of 110V or 240V output with a frequency of 50Hz or 60Hz, the frequency agreed with the grid. (AU)