Fault-tolerant, multilevel converter topology for switched reluctance machines

Author(s):  
Jacek Borecki ◽  
Bernd Orlik
2005 ◽  
Vol 20 (2) ◽  
pp. 405-415 ◽  
Author(s):  
A. Chen ◽  
L. Hu ◽  
L. Chen ◽  
Y. Deng ◽  
X. He

Author(s):  
Salvador Ceballos ◽  
Josep Pou ◽  
Igor Gabiola ◽  
Jose Villate ◽  
Jordi Zaragoza ◽  
...  

Energies ◽  
2020 ◽  
Vol 13 (13) ◽  
pp. 3490
Author(s):  
Vitor Fernão Pires ◽  
Armando José Pires ◽  
Armando Cordeiro ◽  
Daniel Foito

The use of power electronic converters is essential for the operation of Switched Reluctance Machines (SRMs). Many topologies and structures have been developed over the last years considering several specific applications for this kind of machine, improving the control strategies, performance range, fault-tolerant operation, among other aspects. Thus, due to the great importance of power electronic converters in such applications, this paper is focused on a detailed review of main structures and topologies for SRM drives. The proposed study is not limited to the classic two-level power converters topologies dedicated to the SRMs; it also presents a review about recent approaches, such as multilevel topologies and based on impedance source network. Moreover, this review is also focused on a new class of topologies associated to these machines, namely the ones with fault-tolerant capability. This new category of topologies has been a topic of research in recent years, being currently considered an area of great interest for future research work. An analysis, taking into consideration the main features of each structure and topology, was addressed in this review. A classification and comparison of the several structures and topologies for each kind of converter, considering modularity, boost capability, number of necessary switches and phases, integration in the machine design, control complexity, available voltage levels and fault-tolerant capability to different failure modes, is also presented. In this way, this review also includes a description of the presented solutions taking into consideration the reliability of the SRM drive.


2017 ◽  
Vol 140 (5) ◽  
Author(s):  
Wellington A. Silva ◽  
Bismark C. Torrico ◽  
Wilkley B. Correia ◽  
Laurinda L. N. dos Reis

Many industrial and laboratory applications which make use of electric machines require noninterruption operation, even in the presence of faults, such as power generation and electric vehicles. Under fault scenarios, the performance of the system is expected to degrade and control techniques may be helpful to overcome this issue. Within this context, phase faults are obviously undesired, as may lead the machine to stop operating. Switched reluctance machines (SRM), due to its inherit characteristics, are naturally tolerant to phase faults, despite the loss of performance. Most of the techniques used to improve the performance of SRMs in fault situations are related to the switching feed converter. Regarding this issue, instead of presenting an alternative converter topology, this work alternatively proposes a control approach which significantly reduces the phase faults effects on the speed of the motor. Furthermore, the high-frequency noise is attenuated when compared to the classical proportional–integral (PI) controller, commonly applied to control such sort of motors. The proposed SRM-adaptive feedforward control (AFC) controller is able to recover the speed of operation faster than a classical approach, when a feedforward action is not taken into account.


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