Analysis and Control of Multilevel Converters Connected to the Distribution Grid for Photovoltaic Arrays and Storage Energy Devices

• Grant number: 08/10451-1
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: April 01, 2009
• End date: March 31, 2013
• Field of knowledge: Engineering - Electrical Engineering - Power Systems
• Principal Investigator: Ricardo Quadros Machado
• Grantee: Giovani Guarienti Pozzebon
• Host Institution: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil

Abstract

The interest in the investigation of structures that allow the integration of alternative energy sources as a way of generation has been encouraged by regulators and the Ministry of Mines and Energy in order to minimize the effects of the energy crisis. Thus, the connection of distributed generation systems (DG) using DC-AC converters are the target of intense research in order to develop solutions to the problems of instability and detection of contingencies when distributed generation systems operate in connected networks distribution. In this context, this research project aims to develop a methodology for connecting DG systems in distribution networks using DC-AC (multilevel). With this purpose is proposed in this project, the use of wavelet transform and neuro-fuzzy algorithms for the detection and identification of contingencies so that the energy produced by alternative sources and processed by electronic device has quality within the standards established by national and international standards and islanding situations can be characterized and differentiated, especially when compared to maneuvering load. At the end of project implementation, it is expected that the results obtained provide grants to electric utilities and auto-producers and power producers to connect distributed generation systems in distribution networks, as well as the necessary procedures (detection and identification) to be adopted when the distribution system is under islanding.

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

POZZEBON, Giovani Guarienti. Analysis and control of multilevel converters connected to the distribution grid for photovoltaic arrays and storage energy devices. 2013. Doctoral Thesis - Universidade de São Paulo (USP). Escola de Engenharia de São Carlos (EESC/SBD) São Carlos.