Abstract
The fuel cell has become a promising alternative to fossil sources due to its clean and efficient energy. However, it is challenging to connect the fuel cell generator to the electrical grid due to the high nonlinearity of the fuel cell. This paper deals with the problem of controlling a Proton-exchange membrane fuel cell connected to the electrical grid. In fact, a high step-up DC stage composed of an interleaved boost and a three-level boost converter, is used to ensure the maximum point power tracking, and to enhance the fuel cell voltage. Then the DC power is delivered to a half-bridge inverter and injected into the grid via an LCL filter. This study aims to design a nonlinear controller based on the sliding mode approach in order to ensure the following objectives: i) Guarantee the maximum power of the PEM Fuel cell ii) Guarantee the proper current sharing among models of IBC. iii) Regulate the interior voltage in order to improve and stabilize the FC energy. iv) Regulate the DC link voltage. v) Ensure the three-level boost series voltage balance. vi) Ensure the power factor correction. The efficiency of the proposed controller is verified and validated through numerical simulation using Matlab Simulink environment.
Original language | English |
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Book series | IFAC-PapersOnLine |
Volume | 53 |
Issue number | 2 |
Pages (from-to) | 13322-13327 |
Number of pages | 6 |
ISSN | 2405-8963 |
DOIs | |
Publication status | Published - 2020 |
Event | 21st IFAC World Congress 2020 - Berlin, Germany Duration: 12 Jul 2020 → 17 Jul 2020 |
Conference
Conference | 21st IFAC World Congress 2020 |
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Country/Territory | Germany |
City | Berlin |
Period | 12/07/2020 → 17/07/2020 |
Bibliographical note
Publisher Copyright:Copyright © 2020 The Authors. This is an open access article under the CC BY-NC-ND license
Keywords
- Application of power electronics
- Control of renewable energy resources
- Electrical grid
- Fuel cell
- Interleaved boost
- Sliding mode control
- Three-level boost