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| Author(s): |
Cassius Rossi de Aguiar
Total Authors: 1
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| Document type: | Doctoral Thesis |
| Press: | São Carlos. |
| Institution: | Universidade de São Paulo (USP). Escola de Engenharia de São Carlos (EESC/SBD) |
| Defense date: | 2016-11-17 |
| Examining board members: |
Ricardo Quadros Machado;
Mauricio Aredes;
Felix Alberto Farret;
Mario Oleskovicz;
Vilma Alves de Oliveira
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| Advisor: | Ricardo Quadros Machado |
| Abstract | |
This thesis proposes a methodology for management and control of distributed generation with a Proton Exchange Membrane Fuel Cell (PEMFC) as the main source. Additionally, the analysis of performance is used when the PEM fuel cell operates in two different operation modes, i.e. in grid-connected and stand-alone modes. In the first chapters, a review of main features and a mathematical model of fuel cells are presented. Sequentially, the theoretical models of the DC- and AC-power converters are analyzed. For grid-connected operation mode, a strategy based on the DC-link voltage control is proposed via current regulation of the AC stage affording thus the management of the power produced by the fuel cell. Additionally, with the use of the storage devices, a proposal that associates the dynamics of the PEM fuel cell with the DC and AC stages is shown. This fact ensures that the movement of the fuel cell operating point is described within a predetermined dynamic, ensuring that transients are not absorbed by the fuel cell. Finally, a strategy for the startup of fuel cell in association with the energy storage stage is developed. The results show that the proposed structures makes the cell less sensitive to the load transient, in order to move (manage) the fuel cell operating point. At the end of each chapter, experimental and simulation results are presented to support the proposed approach. (AU) | |
| FAPESP's process: | 13/09788-0 - OPERATION AND CONTROL OF PEM FUEL CELL IN DISTRIBUTED GENERATION SYSTEMS CONNECTED TO THE GRID |
| Grantee: | Cassius Rossi de Aguiar |
| Support Opportunities: | Scholarships in Brazil - Doctorate |