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Keywords = brushless doubly-fed reluctance machine (BDFRM)

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23 pages, 32002 KiB  
Article
Model-Based Control System Design of Brushless Doubly Fed Reluctance Machines Using an Unscented Kalman Filter
by Yassine Benômar, Julien Croonen, Björn Verrelst, Joeri Van Mierlo and Omar Hegazy
Energies 2021, 14(24), 8222; https://doi.org/10.3390/en14248222 - 7 Dec 2021
Cited by 3 | Viewed by 2528
Abstract
The Brushless Doubly Fed Reluctance Machine (BDFRM) is an emerging alternative for variable speed drive systems, providing a significant downsizing of the power electronics converter. This paper proposes a new view on the machine equations, allowing the reuse of the standard control system [...] Read more.
The Brushless Doubly Fed Reluctance Machine (BDFRM) is an emerging alternative for variable speed drive systems, providing a significant downsizing of the power electronics converter. This paper proposes a new view on the machine equations, allowing the reuse of the standard control system design for conventional synchronous and asynchronous machines: a cascade control system with an inner current control- and outer speed control loop. The assumptions and simplifications made on the machine model allow for a simple, model-based approach to set the controller gains in a brushless doubly fed machine drive system. The cascade control scheme is combined with an Unscented Kalman Filter as a state observer, capable of estimating the load torque and losses. The performance of the proposed control system design is checked in simulation and tested in real-time on a low power BDFRM prototype. Full article
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27 pages, 9613 KiB  
Article
On Analytical Modeling of the Air Gap Field Modulation in the Brushless Doubly Fed Reluctance Machine
by Yassine Benômar, Julien Croonen, Björn Verrelst, Joeri Van Mierlo and Omar Hegazy
Energies 2021, 14(9), 2388; https://doi.org/10.3390/en14092388 - 22 Apr 2021
Cited by 10 | Viewed by 2569
Abstract
The brushless doubly fed reluctance machine (BDFRM) is receiving an increased amount of attention from the research community thanks to its potential as an alternative drive for variable speed applications, both as motor and generator. Currently, the sizing of the BDFRM in the [...] Read more.
The brushless doubly fed reluctance machine (BDFRM) is receiving an increased amount of attention from the research community thanks to its potential as an alternative drive for variable speed applications, both as motor and generator. Currently, the sizing of the BDFRM in the literature is based on the model of an ideal axially laminated rotor (ALR) and discrepancies are hidden in compensation factors which are in turn tuned with a finite element analysis (FEA). This paper proposes an analytical framework to accurately model the air gap field modulation, and by extension the torque density, of the BDFRM with ducted segmental rotor (DSR) and salient pole rotor (SPR). The results are verified with FEA and validated on a BDFRM prototype. Full article
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39 pages, 4200 KiB  
Review
A Comprehensive Review on Brushless Doubly-Fed Reluctance Machine
by Omid Sadeghian, Sajjad Tohidi, Behnam Mohammadi-Ivatloo and Fazel Mohammadi
Sustainability 2021, 13(2), 842; https://doi.org/10.3390/su13020842 - 16 Jan 2021
Cited by 15 | Viewed by 5287
Abstract
The Brushless Doubly-Fed Reluctance Machine (BDFRM) has been widely investigated in numerous research studies since it is brushless and cageless and there is no winding on the rotor of this emerging machine. This feature leads to several advantages for this machine in comparison [...] Read more.
The Brushless Doubly-Fed Reluctance Machine (BDFRM) has been widely investigated in numerous research studies since it is brushless and cageless and there is no winding on the rotor of this emerging machine. This feature leads to several advantages for this machine in comparison with its induction counterpart, i.e., Brushless Doubly-Fed Induction Machine (BDFIM). Less maintenance, less power losses, and also more reliability are the major advantages of BDFRM compared to BDFIM. The design complexity of its reluctance rotor, as well as flux patterns for indirect connection between the two windings mounted on the stator including power winding and control winding, have restricted the development of this machine technology. In the literature, there is not a comprehensive review of the research studies related to BDFRM. In this paper, the previous research studies are reviewed from different points of view, such as operation, design, control, transient model, dynamic model, power factor, Maximum Power Point Tracking (MPPT), and losses. It is revealed that the BDFRM is still evolving since the theoretical results have shown that this machine operates efficiently if it is well-designed. Full article
(This article belongs to the Special Issue Smart Microgrid Systems)
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