Conception and control of a new hybrid four-level inverter associated with a multi-source system
- PDF / 8,883,451 Bytes
- 15 Pages / 595.276 x 790.866 pts Page_size
- 73 Downloads / 189 Views
ORIGINAL PAPER
Conception and control of a new hybrid four-level inverter associated with a multi-source system Sabri Mansouri1 · Slim Tnani1 · Olivier Bachelier1 Received: 5 November 2018 / Accepted: 31 August 2020 © Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract In the recent years, the introduction of an alternative energy such as clean energy has become a major challenge. In this context, several sources of energy are often associated to provide the required energy to the grid. However, output of photovoltaic system and wind turbine is influenced by meteorological conditions. As a result, the power quality exchanged between those sources and the grid might be affected. In this paper, we suggest a new structure of hybrid multi-level inverter in order to solve problems due to the rapid variation of exchanged powers. The main objective of the proposed structure is to limit the sudden fluctuation of injected power into the electrical network via a new structure of multi-level inverter based on intermediate supercapacitor energy storage. The control strategy of this hybrid inverter applies linear matrix inequalities technique to control the injected or absorbed currents by the storage system as well as space vector modulation technique to generate pulses for switches. Presented results highlight the efficiency of the proposed system in suppressing short-term power fluctuations. Keywords Hybrid multilevel inverter · Energy storage · Supercapacitor · SVM technique · LMI approach
1 Introduction The increased attention on demand of electricity results in the introduction of an alternative energy source such as renewable energy [1]. This solution offers many advantages : first of all, it is considered as a non-polluting source which is able to improve the air quality and to reduce greenhouse impact. Moreover, the use of renewable energy technologies can heavily reduce overall production costs, through fuel savings [2,3]. Among the most effective renewable energy technologies, stand both PV systems and wind power generators. The first constitutes a valuable clean energy source which has the capacity to produce energy and supply good power quality [4]. This energy depends mainly on two meteorological conditions: solar irradiation and temperature. Thus, the power quality as well as the stability of the grid can be influenced by the rapid variation of those parameters.
B 1
Sabri Mansouri [email protected] Laboratory of Computer Science and Automatic Control for Systems, University of Poitiers, Bâtiment B25, 2, Rue Pierre Brousse, TSA, 41105, 86073 Poitiers Cedex 9, France
The second is one of the fastest-growing energy sources in the world. The majority of new proposals for wind-power systems make use of advanced turbine designs as well as variable-speed generators [5]. Therefore, the change of wind speed can affect directly the quality of exchanged power with the grid. In order to stabilize the electrical network and to improve its dynamic performance, an auxiliary storage system can
Data Loading...
